Camtech Manufacturing FZCO

dubai, United Arab Emirates

CAMTECH Globe valves are heavy duty, outside screw and yoke type, Bolted bonnet, rising stem and rising handwheel type. These valves are highly efficient for service requiring frequent operation and throttling. These valves are handwheel operated and gear operated depending upon the size. Globe valves are generally considered for moderate control and regulation of fluid. Some of the design features are as below,

• Cast body precisely machined with integral flanges.
• Cast bonnet with integral yoke for better alignment and fewer parts.
• Disc is ground and lapped for better finish and sealing. The disc is integrally guided to assure true alignment between disc and valve body. The loose disc allows for proper sealing without damage.
• Rising stem with precision ACME thread with single or double start for quick operation.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• Seat rings are welded in or integral to provide bubble tight joint.
• Two piece gland and gland flange arrangement for reduced stem wear.
• Impactor handwheel can also be provided as needed.
• Nace service either MR-01-75 or MR-01-03 as required.
• Valves can be supplied with Pneumatic, Hydraulic or electric actuators.
• Accessories like limit switch, etc can be provided as optional.

These valves are available in wafer style and lugged style. Few silent features are indicated as below,

• With spherical disc, the geometry and construction of the seat results in smooth contact between the seat and the disc. This also results in reduced valve torque.
• Blow out proof shaft design.
• Reduced torque compared to other conventional valves.
• Greatly reduced seat wear.
• Bubble tight shut off over extended period of service.
• Stellite hard face on the disc sealing face can be provided upon request.
• Low emission packing set available for special service.
• Live loading can be provided which maintain constant pressure on the gland.

Camtech Through Conduit Gate valves offer increased value by incorporating advanced design features. These valves are designs and manufactured with a full bore port, rising stem, OS & Y type with floating seats. These valves are robust in construction and easy In-Line maintainability. The full port bi-directional flow capability minimizes pressure drop and turbulence. The valve seat faces are outside the flow stream and therefore the seats are protected from the erosive action of the fluid flow. These valves are piggable valves and Pigs and scrapers can be run through the valve without causing damage to the valve and seats. Through Conduit valves are primarily used in chemical, petrochemical and oil & gas transmission pipelines, onshore terminals, offshore platforms, Suitable for all types of fluids (including abrasive fluids). Few silent features are indicated as below,

Valves are with Double Block and bleed feature.Seats are self-relieving. The cavity pressure is relieved to the main stream depending upon the differential pressure.These valves are fire safe as per API 6FA.Emergency Seat and Stem sealant injectors are provided.Stem seal offers tight seal with little to no maintenance over long periods of time.Non Rotating stem design.Hardfaced seating faces resist erosion.Soft seat valves are Bubble tight shut off over extended period of service.Low emission packing set available for special service.Drain and Vent are provided as standard features.

Camtech Pressure Balanced Lubricated Plug valves robust in construction and easy In-Line maintainability. These valves are used where existing pulsating or static high pressures are present. These valves are suitable for medium that are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc. under nominal pressure of Class 150-2500 Lbs and working temperature of 29180C.

Camtech API 6A valves provide highest level of quality and value to oil and gas application. These valves have optimized flow path and proper selection of trim style and material for longer life, proper performance and function. The single piece slab gate is field-replaceable and provides the valve with full bidirectional sealing capability at both high and low pressures. Slab Gate Valves are designed for oil and natural gas wellhead, manifold or other critical service applications with operating pressures from 3, 000 to 10, 000 psi. these valves are offered in all API temperature classes and product specification levels PSL 1 through 4.
Few silent features are indicated as below,

The body and trim materials are available to fit operating conditions.Full open through conduit construction to eliminate turbulence and pressure drop.The gate and seat assembly is easily and quickly replaceable without special tools.Bi-directional sealingNon-Rising stem.Gate is guided smoothly with guides.The shoulder on the stem can be seated against the bonnet flange to seal off the stuffing box. permitting the replacement of the stem packing while the valve is under pressure.The stem pin protects the stem and other internal parts from failure by shearing if a high overload torque is accidentally applied to the handwheel.Expanding gate also available on request.

CAMTECH Globe valves are heavy duty, outside screw and yoke type, Bolted bonnet, rising stem and rising handwheel type. These valves are highly efficient for service requiring frequent operation and throttling. These valves are handwheel operated and gear operated depending upon the size. Globe valves are generally considered for moderate control and regulation of fluid.

CAMTECH Gate valves are heavy duty, outside screw and yoke type, Bolted bonnet, rising stem and non-rising handwheel type. The straight through bore design assures minimum turbulence, erosion and resistance to flow. These valves are handwheel operated and gear operated depending upon the size. Some of the design features are as below,

Cast body precisely machined with integral flanges.Cast bonnet with integral yoke up to 10One piece flexible wedge is standard. Solid wedge shall be provided on request.Rising stem with precision ACME thread with single or double start for quick operation.Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.Live loading on packing can be provided as request.Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.Seat rings are welded in or integral to provide bubble tight joint.Two piece gland and gland flange arrangement for reduced stem wear.By-Pass, Lantern rings, special connection are as optional.Nace service either MR-01-75 or MR-01-03 as required.Valves can be supplied with Pneumatic, Hydraulic or electric actuators.Accessories like limit switch, etc can be provided as optional.

Camtech Through Conduit Gate valves offer increased value by incorporating advanced design features. These valves are designs and manufactured with a full bore port, rising stem, OS & Y type with floating seats. These valves are robust in construction and easy In-Line maintainability. The full port bi-directional flow capability minimizes pressure drop and turbulence. The valve seat faces are outside the flow stream and therefore the seats are protected from the erosive action of the fluid flow. These valves are piggable valves and Pigs and scrapers can be run through the valve without causing damage to the valve and seats.

Camtech manufacturing offers the cryogenic industry the most complete and technically advanced cryogenic gate valves. These valves are supplied with extended bonnet with a sufficient gas column length, usually specified by the user, to keep the stem packing away from the cold fluid, to avoid the frosting of the stem packing and ensure functional integrity. All cryogenic valves are thoroughly degreased and cleaned and pipe ends are sealed to prevent contamination.

Camtech valves are inspected and tested In-House in accordance with BS 6364 to certify sealing performance in cryogenic conditions, when required by the customer.

Camtech Cryogenic valves are specially designed for gas treatment processes and storage and transportation of liquefied gasses such as LNG, liquid nitrogen, Oxygen, . Etc. These valves are required to be operated to give assured leakage rates. These valves which are recommended to use below -50C are designed with a extended bonnet which separates the operator and stem seal from the cold temperature. 12 gas column is a standard feature for these valves. Extended bonnet as per MESC SPE 77/200 & SPE 77/209 can also be given.

The main pressure containing components are treated with liquid nitrogen to stabilize dimensions and eliminate the stress caused by metal microstructure changes. Lip seals are used as a seals in these valves which are made up of different materials such as PTFE, KEL-F, etc, and it is self energized by an internal spring of stainless or Inconel alloy.

Camtech valves are inspected and tested In-House in accordance with BS 6364 to certify sealing performance in cryogenic conditions, when required by the customer.

CAMTECH Forged Steel Globe Valves are compact, sturdy and ideal for high pressure and high temperature applications. These valves are outside screw and yoke type (OS & Y) with rising stem and rising handwheel. These valves shall be bolted bonnet or welded bonnet type with full or standard bore options. These valves are best suited for throttling application to regulate the flow.

• The body is forged steel and available in both the full or standard port design.
• The bonnet is forged steel, has an integral backseat and incorporates the stuffing box.
• The disc is forged steel and is part of the valve trim. The seating surfaces are ground and lapped.
• Rising stem with precision ACME thread and contains an integral back seat shoulder, which mates with the integral backseat of the bonnet.
• BODY-BONNET JOINT Two different bonnet joint designs are available. These are either the bolted bonnet and seal welded type.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• The seat rings are pressed into the valve body and wedged into place, forming a seal with the body.
• The seating surfaces are ground and lapped.
• Two piece gland and gland flange arrangement for reduced stem wear.
• Nace service either MR-01-75 or MR-01-03 as required.

CAMTECH Pressure Seal Globe Valves are ideal for high pressure steam, liquid, catalytic reformers, hydrocrackers and other tough services. In the tough world of High pressure, High temperature valve applications, Pressure seal Globe Valve continue to provide a wide range of industries with a safe, leak free, pressure containing boundary. These valves are best suited for throttling application at high pressure and temperature.

The basic concept of pressure seal valves is that the initial bonnet pull up bolts tighten the bonnet which inturns seals the pressure seal gasket to the body. Then the system pressure assist for more force to seal the gasket. Hence, as system pressure increases, the potential for leakage through the body/bonnet joint decreases.

• Cast body precisely machined with integral flanges.
• Precisely machined Swivel disc as standard which provides superior tightness.
• Rising stem with precision ACME thread with single or double start for quick operation.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• Longer Seat rings are designed for higher temperature and higher pressure.
• Two piece gland and gland flange arrangement for reduced stem wear.
• Nace service either MR-01-75 or MR-01-03 as required.
• Valves can be supplied with Pneumatic, Hydraulic or electric actuators.
• Accessories like limit switch, etc can be provided as optional.

CAMTECH Swing Check Valves are heavy duty, bolted cover, renewable seat ring, internally body mounted disc arrangement. These valves are unidirectional valves and restrict flow from opposite direction. These valves are best suited for moderate velocity conditions. Swing check valves are normally designed for horizontal flow condition, but can also be installed in vertical pipeline, but in vertical pipeline, the flow shall be in upwards direction and under the disc.

• Cast body precisely machined with no threaded holes and crevice, hence reduce crevice / thread corrosion and carefully designed to minimize pressure drop.
• Stellited lapped seats for increased seat life and better performance.
• High performance spring design.
• Shock bumpers prevent slamming with springs and pins.
• Hinge pin is part of the trim, in forged stainless steel and machined from ground bar. The hinge pin is held in position in the body with two supports. These pins can be easily removed for valve maintenance.
• Stop pins is part of the trim, in forged stainless steel and machined from ground bar. It helps to stop the disc from slamming and retains the spring thrust.
• Innovative pin design to eliminate the disc drag on the body seat, which increases the seat life.
• Independent disc springs for equal closing rate of each disc.
• Discs open 85 to ensure positive closing.
• Nace service either MR-01-75 or MR-01-03 as required.

CAMTECH Forged Steel Check Valves are compact, sturdy and ideal for high pressure and high temperature applications. These valves are lift type, spring loaded check valve and available in with two type configurations, i.e., Plug type and Ball type. These valves shall be bolted bonnet or welded bonnet type with full or standard bore options. These valves are non-return valves, which allows flow in one direction.

• The body is forged steel and available in both the full or standard port design.
• The cover is forged steel, attached on top of body.
• The plug or ball is forged steel and is part of the valve trim. The seating surfaces are ground and lapped.
• Compression spring pushes the plug or the ball to the seat for tight sealing.
• BODY-BONNET JOINT Two different bonnet joint designs are available. These are either the bolted bonnet and seal welded type.
• The seat rings are pressed into the valve body and wedged into place, forming a seal with the body.The seating surfaces are ground and lapped.
• Nace service either MR-01-75 or MR-01-03 as required.

CAMTECH Triple Offset Butterfly Valve design offers rugged reliability and extremely easy maintenance in the field. These valves are Bi-directional and with advanced design features of Triple eccentricity and unique elliptical seat geometry ensuring compressive sealing around the entire seat and a tight, bubble-free valve. These valves are well suited for operation in light vacuum to high pressure applications. The standard, non-rubbing, metal-to-metal sealing system is inherently fire safe by design. Triple offset butterfly valve can be used not only on-off but also regulating the flow.

Camtech Through Conduit Gate valves offer increased value by incorporating advanced design features. These valves are designs and manufactured with a full bore port, rising stem, OS & Y type with floating seats. These valves are robust in construction and easy In-Line maintainability. The full port bi-directional flow capability minimizes pressure drop and turbulence. The expanding gate valve does not require line pressure to seal and is recommended when a tight mechanical seal is required. The design provides a mechanical seal between the seats and the gate in both high and low pressure applications. There are two piece wedged shape assembly consisting of a Gate and a Segment. The Gate is attached and driven by the stem. Positive sealing is achieved in both high and low pressure conditions by expanding the Gate and the Segment out towards the seats while in a closed position.

Camtech Pressure Balanced Lubricated Plug valves robust in construction and easy In-Line maintainability. These valves are used where existing pulsating or static high pressures are present. These valves are suitable for medium that are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc. under nominal pressure of Class 150-2500 Lbs and working temperature of 29180C.
Uniqueness of dynamically and pressure balanced design together with inverted plug design, assure prevention of locking, which has been the problems of conventional design at higher pressure application. Pressure Balance Lubricated Plug valves are manufactured using a wide range of materials to suit the service applications.
The benefit of dynamic pressure balance plug valve offers is that it ensures equalized pressure between the plug and upper and lower body chamber. Pressure is balance by the two holes in the plug which connects the plug port to upper and lower chamber. The hole in the upper end is provided with a check valve so that the pressure is always equal to the larger chamber and always equal to or greater than the line pressure in the small chamber. Few silent features are indicated as below,

Valves are with Double Block and bleed feature.Easy inline maintenance.In the event of the plug lock-up, it is possible to inject lubricant to the valve in service.Leak tightness of the operating system.Assured stem tightness by means of gasket and packing between the stem and the body.Fire SafeDouble injector for lubrication can be provided on request.Hardfaced seating faces resist erosion.Low emission packing set available for special service.Drain and Vent are provided as standard features.

Camtech Sleeved Plug valves are robust in construction and easy In-Line maintainability. These valves are non-lubricated quarter-turn valves that achieve sealing through the use of a compressible sleeve as a sealing member. In many applications they operate virtually maintenance free for decades. Sleeved plug valves are used for on/off and throttling service in demanding process applications with media temperatures ranging from -20F to 600F. These valves are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc.
These valves are Bi-directional flow, simple actuation, lightweight, compact design, and multiport configurations, all facilitate for improved system design. The inert PTFE sleeve completely surrounds the plug. The sleeve provides a large, circumferential sealing surface from port to port. Open, closed, or rotating, the seal is assured. As the plug rotates, the 360 port lips provide a self-cleaning action to remove scaling and adhering media. Few silent features are indicated as below,

Bi-directional in-line bubble-tight seal independent of line pressureMultiple external bubble-tight seals independent of line pressure.Direct mechanical three-point adjustment independent of line pressureIndependent travel stopsFull encapsulation and retention of all leading edges of PTFE sleeve and top seal components.Full lip at port openings protects PTFE sleeve.Contoured waterway ensures minimum flow turbulence characteristic.No body cavities to entrap flow media.Positive flow direction indication

• Cast body precisely machined with integral flanges.
• Cast bonnet with integral yoke up to 10
• Two separate individual wedge with spring loaded and rigid guide rails.
• Rising stem with precision ACME thread with single or double start for quick operation.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• Seat rings are welded in or integral to provide bubble tight joint.
• Two piece gland and gland flange arrangement for reduced stem wear.
• By-Pass, Lantern rings, special connection are as optional.
• Nace service either MR-01-75 or MR-01-03 as required.
• Valves can be supplied with Pneumatic, Hydraulic or electric actuators.
• Accessories like limit switch, etc can be provided as optional.

• Cast body precisely machined with integral flanges.
• One piece flexible wedge as standard which provides superior tightness and non sticking operations.
• Rising stem with precision ACME thread with single or double start for quick operation.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• Longer Seat rings are designed for higher temperature and higher pressure.
• Two piece gland and gland flange arrangement for reduced stem wear.
• By-Pass, Lantern rings, pressure equalization lines, special connection are as optional.
• Nace service either MR-01-75 or MR-01-03 as required.
• Valves can be supplied with Pneumatic, Hydraulic or electric actuators.
• Accessories like limit switch, etc can be provided as optional.

• The body is forged steel and available in both the full or standard port design.
• The bonnet is forged steel, has an integral backseat and incorporates the stuffing box.
• The wedge, which is solid design, is forged steel and is part of the valve trim. The seating surfaces are ground and lapped.
• Rising stem with precision ACME thread and contains an integral back seat shoulder, which mates with the integral backseat of the bonnet.
• BODY-BONNET JOINT Two different bonnet joint designs are available. These are either the bolted bonnet or the threaded and seal welded type.
• Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
• Live loading on packing can be provided as request.
• Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
• The seat rings are pressed into the valve body and wedged into place, forming a seal with the body. The seating surfaces are ground and lapped.
• Two piece gland and gland flange arrangement for reduced stem wear.
• Nace service either MR-01-75 or MR-01-03 as required.

• Cast body precisely machined with integral flanges.
• Cast cover provides easy access to the disc and hinge without removing the valve from the pipeline in case of maintenance.
• Disc is ground and lapped for better finish and sealing. The disc is integrally guided to assure true alignment between disc and valve body. The loose disc allows for proper sealing without damage.
• Hinge pin is precisely machined and mounted on the body internally.
• Hinge is pivoted to the hinge pin inside the body.
• Disc nut secures the disc to the hinge. It allows the disc to rotate about its axis and assist in tight shut off.
• Seat rings are welded in or integral to provide bubble tight joint.
• Swing check valves can also be provided with Dashpot and counter weight arrangement on request.
• Nace service either MR-01-75 or MR-01-03 as required.

Camtech Through Conduit Gate valves offer increased value by incorporating advanced design features. These valves are designs and manufactured with a full bore port, rising stem, OS & Y type with floating seats. These valves are robust in construction and easy In-Line maintainability. The full port bi-directional flow capability minimizes pressure drop and turbulence. The expanding gate valve does not require line pressure to seal and is recommended when a tight mechanical seal is required. The design provides a mechanical seal between the seats and the gate in both high and low pressure applications. There are two piece wedged shape assembly consisting of a Gate and a Segment. The Gate is attached and driven by the stem. Positive sealing is achieved in both high and low pressure conditions by expanding the Gate and the Segment out towards the seats while in a closed position.
The valve seat faces are outside the flow stream and therefore the seats are protected from the erosive action of the fluid flow. These valves are piggable valves and Pigs and scrapers can be run through the valve without causing damage to the valve and seats. Through Conduit valves are primarily used in chemical, petrochemical and oil & gas transmission pipelines, onshore terminals, offshore platforms, Suitable for all types of fluids (including abrasive fluids). Few silent features are indicated as below,

Valves are with Double Block and bleed feature.These valves are fire safe as per API 6FA.Emergency Seat and Stem sealant injectors are provided.Stem seal offers tight seal with little to no maintenance over long periods of time.Non Rotating stem design.Hardfaced seating faces resist erosion.Soft seat valves are Bubble tight shut off over extended period of service.Low emission packing set available for special service.Drain and Vent are provided as standard features with cavity relief valve.

Camtech manufacture both Positive and adjustable choke valves in pressure rating up to 10, 000 PSI working pressure. Each choke can be interchanged and configured in to positive choke, adjustable choke, and actuated choke. Depending upon the requirement in the site, well conditions, life, and these chokes can be converted in to different types as required. The majority of the components are interchangeable, which makes it easy for manufacturing and maintenance. These valves are offered in all API temperature classes and product specification levels PSL 1 through 4.

These chokes are available in different configurations as below,

Positive Bean configurationNeedle and Seat configurationCage type configuration

Few silent features are indicated as below,

Body/bonnet materials like carbon steel, low alloy steel, stainless steel, duplex stainless steel, nickel alloy and low alloy steel with 3mm finish nickel alloy cladded on wetted areas to suit different service conditions.Choke bean and choke bean adopter will be provided as per customer requirement.Camtech positive choke can be converted into adjustable choke by replacing choke trim and top work assembly.Centre to face distance can be manufactured as per customer requirement. However Camtech has standard dimensions as per best industry practice.Different material choke are available with different kind of lining.Bonnet may be hammer union or bolted type.Bonnet nut with vent hole for safety during servicing.Dynamic seal (stem packing) uses spring energized seals.In line body or angle body options available.Shut off to ANSI Class IV, V (and Class VI).Flow is directed through ports into the center of the trim where it impinges on flow from the opposite port.

Camtech Cryogenic valves are specially designed for gas treatment processes and storage and transportation of liquefied gasses such as LNG, liquid nitrogen, Oxygen, . Etc. These valves are required to be operated to give assured leakage rates. These valves which are recommended to use below -50C are designed with a extended bonnet which separates the operator and stem seal from the cold temperature. 12 gas column is a standard feature for these valves. Extended bonnet as per MESC SPE 77/200 & SPE 77/209 can also be given.

The main pressure containing components are treated with liquid nitrogen to stabilize dimensions and eliminate the stress caused by metal microstructure changes. Lip seals are used as a seals in these valves which are made up of different materials such as PTFE, KEL-F, etc, and it is self energized by an internal spring of stainless or Inconel alloy.

Camtech valves are inspected and tested In-House in accordance with BS 6364 to certify sealing performance in cryogenic conditions, when required by the customer.

Camtech Cryogenic valves are specially designed for gas treatment processes and storage and transportation of liquefied gasses such as LNG, liquid nitrogen, Oxygen, . Etc. These valves are required to be operated to give assured leakage rates. These valves which are recommended to use below -50C are designed with a extended bonnet which separates the operator and stem seal from the cold temperature. 12 gas column is a standard feature for these valves. Extended bonnet as per MESC SPE 77/200 & SPE 77/209 can also be given.

The main pressure containing components are treated with liquid nitrogen to stabilize dimensions and eliminate the stress caused by metal microstructure changes. Lip seals are used as a seals in these valves which are made up of different materials such as PTFE, KEL-F, etc, and it is self energized by an internal spring of stainless or Inconel alloy.

Camtech valves are inspected and tested In-House in accordance with BS 6364 to certify sealing performance in cryogenic conditions, when required by the customer.

Camtech Cryogenic valves are specially designed for gas treatment processes and storage and transportation of liquefied gasses such as LNG, liquid nitrogen, Oxygen, . Etc. These valves are required to be operated to give assured leakage rates. These valves which are recommended to use below -50C are designed with a extended bonnet which separates the operator and stem seal from the cold temperature. 12 gas column is a standard feature for these valves. Extended bonnet as per MESC SPE 77/200 & SPE 77/209 can also be given.

The main pressure containing components are treated with liquid nitrogen to stabilize dimensions and eliminate the stress caused by metal microstructure changes. Lip seals are used as a seals in these valves which are made up of different materials such as PTFE, KEL-F, etc, and it is self energized by an internal spring of stainless or Inconel alloy.

Camtech valves are inspected and tested In-House in accordance with BS 6364 to certify sealing performance in cryogenic conditions, when required by the customer.

• Cast body precisely machined with integral flanges.
• Precisely machined Swivel disc as standard which provides superior tightness.
• No penetration of hinge pin to outside eliminating possibility of pin seal leakage and allowing for in-line service.
• Easy in-line service. All parts are easily accessible for maintenance. Seating faces can be re-lapped.
• Hinge is pivoted to the hinge pin inside the body
• Disc nut secures the disc to the hinge. It allows the disc to rotate about its axis and assist in tight shut off.
• Longer Seat rings are designed for higher temperature and higher pressure.
• Nace service either MR-01-75 or MR-01-03 as required.