Cryogenic Valve

  • Body Materials: LF2, F304, F304L, F316, F316L, F321, F347, F51, F53, F55
  • Sizes: 1/2″ – 4″
  • Design and Manufacturing Standards: API602, ASME B16.34, ASME B16.10
  • Pressure Class: 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB
  • Quality/Product Certifications: ISO9001, ISO14001, ISO18001, ISO15848, CE
  • Bore Options: Full Bore, Reduced Bore
  • Connection Types: NPT, Socket Weld, Butt Weld, RF, FM, RTJ, M

Premium Cryogenic Valve by CLDG

The cryogenic forged valve is a high-performance industrial valve specifically designed for extreme low-temperature applications. It is widely used in the control and isolation of cryogenic fluids such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), and other liquefied gases. This valve is engineered in strict compliance with **Shell Technical Specification MESC SPE 77/200**, ensuring exceptional sealing performance, structural stability, and operational reliability under harsh cryogenic environments ranging from -196°C (-321°F) to -20°C (-4°F).

Its key features include:

  • Key Design Features

  • High-Quality Material Selection

  • Leakage Control

  • Reliable Operating Performance

Key Design Features

压力

Key Design Features

For applications below -50°C (-58°F), the valve is equipped with an extended bonnet to protect the sealing packing from low-temperature effects. The minimum vapor space height complies with MESC SPE 77/200 requirements, effectively minimizing thermal transfer.

The extended bonnet can be fabricated through integral casting, forging, or welding, with weld joints designed for full penetration to ensure structural integrity.
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High-Quality Material Selection

The valve body and bonnet are made of forged carbon steel, stainless steel, or alloy steel, offering excellent low-temperature toughness and resistance to fatigue.

Cryogenic-grade sealing materials are used in the stem packing area to ensure tight sealing and minimal leakage under extreme conditions.
防尘防水密封性强

Leakage Control

The valve undergoes strict leakage tests in accordance with micro-leakage grades A (HS) or B, with maximum leakage rates controlled to less than 10^-5 mg/(s·mcirc), meeting ISO 15848-2 and MESC SPE 77/312 standards.

Helium or helium/nitrogen mixtures are used as test media, with mass spectrometry ensuring zero leakage performance at cryogenic conditions.
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Reliable Operating Performance

Multiple actuation options are available, including manual, electric, pneumatic, and hydraulic, to accommodate diverse industrial needs.

Valve opening and closing forces comply with EN 12570 standards, ensuring smooth and reliable operation.

Testing and Certification

Application Areas

Cryogenic forged valves are widely used in refineries, chemical plants, LNG receiving terminals, liquefied gas carriers, and other industries that require safe and reliable cryogenic fluid control. These valves ensure the safety, stability, and efficiency of critical systems operating in extreme conditions.

  • Refineries

  • Chemical plants

  • LNG receiving terminals

  • Liquefied gas carriers

  • Industries requiring cryogenic fluid control

Structural Design of Cryogenic Valve

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Body Seat Disc Stem Gasket Bonnet Bolt Stem packing Gland Bolt Gland Gland Flange Nut Stem Nut Flat Nut Handwheel
A350-LF2 A276-420 A276-420 A276-410 SS304+Grap. A350-LF2 A320-L7 Graphite A320-L7 A276-420 #35 A194-7 A276-410 A194-2H KTH330-8
A182-F304 A182-F304 A182-F304 A182-F304 SS304+Grap. A182-F304 A193-B8 Graphite A193-B8 A182-F304 A182-F304 A194-8 A276-410 A194-2H KTH330-8
A182-F304L A182-F304L A182-F304L A182-F304L SS304+Grap. A182-F304L A193-B8 Graphite A193-B8 A182-F304 A182-F304 A194-8 A276-410 A194-2H KTH330-8
A182-F316 A182-F316 A182-F316/L A182-F316/L SS316+Grap. A182-F316 A193-B8M Graphite A193-B8M A182-F316/L A182-F316/L A194-8M A276-410 A194-2H KTH330-8
A182-F316L A182-F316L A182-F316/L A182-F316/L SS316+Grap. A182-F316L A193-B8M Graphite A193-B8M A182-F316/L A182-F316/L A194-8M A276-410 A194-2H KTH330-8
A182-F321 A182-F321 A182-F321 A182-F321 SS304+Grap. A182-F321 A193-B8 Graphite A193-B8 A182-F304 A182-F304 A194-8 A276-410 A194-2H KTH330-8
A182-F347 A182-F347 A182-F347 A182-F347 SS304+Grap. A182-F347 A193-B8 Graphite A193-B8 A182-F347 A182-F304 A194-8 A276-410 A194-2H KTH330-8
A182-F51 A182-F51 A182-F51 A182-F51 SS316+Grap. A182-F51 A193-B8M Graphite A193-B8M A182-F51 A182-F316 A194-8M A276-410 A194-2H KTH330-8
A182-F53 A182-F53 A182-F53 A182-F53 SS316+Grap. A182-F53 A193-B8M Graphite A193-B8M A182-F53 A182-F316 A194-8M A276-410 A194-2H KTH330-8
A182-F55 A182-F55 A182-F55 A182-F55 SS316+Grap. A182-F55 A193-B8M Graphite A193-B8M A182-F55 A182-F316 A194-8M A276-410 A194-2H KTH330-8

Structural Design of Cryogenic Valve

Size L W Φd T ΦS
1/2" 79 87 10.5 10 21.8
3/4" 92 87 13 13 27.2
1" 111 105 17 13 33.9
1-1/4" 120 146 23 13 42.7
1-1/2" 120 146 29 13 48.8
2" 140 160 36 16 61.2
2-1/2" 178 193 45 16 73.9
3" 178 193 54 16 89.8
4" 305 320 69 19 115.2

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