Dual Plate Check Valves

Valmark has an extensive experience in supplying of throughout the hydrocarbon, energy and process industries across the world.

Size:
2” up to 56“ (DN 50 up to DN 1400)

Pressure Rating:
ASME 150# to 2500#

Materials:
Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Nickel Alloys, Nickel Aluminum Bronze, Hastelloy, Inconel, Titanium Alloy & Carbon Steel with Internal Corrosion Resistant Alloy (CRA) Overlay

Design Standard:
API 6D, API 594, MESC SPE 77 / 133

Pressure / Temperature Rating:
ASME B 16.34

Test (Inspection) Standard:
API 598, API 6D, ISO 5208 MESCSPE 77/133, ISO 15848-1&2 Bs6364

Construction Details:
Dual Plate, Soft and Metal Seated

End Connection:
Screwed, Socket Weld, Flanged, Hub End, Butt-Weld

Operator / Actuator:
Lever, Gear, Actuator (Pneumatic, Hydraulic, Electro-Hydraulic and Electric Motorised)

• Wafer Type
• Solid Lug Type
• Double Flange type
• Hub End type
• Butt weld end type

Cryogenic Service: Almost all Dual Plate Check Valve types can be designed in a special version suitable for cryogenic service. In this case, all the materials and technical features are designed to withstand minimum design
temperature required by the Customer, down to Cryogenic -196°C. If required by the customer, specific Cryogenic Tests are performed to verify the behaviour of valves sealing capability and emissions etc. vs the ambient.

Swing Type Bolted Bonnet

Valmark has an extensive experience in supplying of Piston, Swing, Tilting Disc and Non-Slam Check Valves for use in the hydrocarbon, energy and process industries.

Size:
½” up to 56“ (DN 15 up to DN 1400)

Pressure Rating:
ASME 150# to 2500#

Materials:
Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Nickel Alloys, Nickel Aluminum Bronze, Hastelloy, Inconnel, Titanium Alloy & Carbon Steel with Internal Corrosion Resistant Alloy (CRA) Overlay

Design Standard:
API 602, API 6D, MESC SPE 77 / 132, BS 1868, DIN 3356, ISO15761

Pressure / Temperature Rating:
ASME B 16.34

Test (Inspection) Standard:
API 598, API 6D, MESC 77/132, ISO 5208, ISO15848-1&2, Bs6364

Construction Details:
Bolted Cover / Pressure Seal Bonnet, Lift Check Type, Swing Check, Piston Check, Tilting Disc, Non – Slam Check

End Connection:
Screwed, Socket Weld, Flanged, Hub End, Butt-Weld

Operator / Actuator :
Lever, Gear, Actuator (Pneumatic, Hydraulic, Electro-Hydraulic and Electric Motorised)

• Swing Type Bolted Bonnet
• Piston type check valves
• Non-Slam Check Valves
• Tilting Disc type Pressure Seal Bonnet
• Nozzle type

Cryogenic Service
Almost all Check Valve can be designed in a special version suitable for cryogenic service. In this case, all the materials and technical features are designed to withstand minimum design temperature required by the Customer, down to Cryogenic -196°C. If required by the customer, specific Cryogenic Tests are performed to verify the behaviour of valves sealing capability, emissions vs the ambient.