Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd.
Cryogenic gate valves are shut-off valves built for media at -46°C and lower. Its long bonnet lifts the packing away from the cold zone, keeping the packing temperature above 0°C so it won’t freeze, and also protects operators from frostbite.
Specific Applications
Common materials include LF2, LF3, F304, and F316L, which stay tough at low temperatures. Cryogenic gate valves are used in LNG, LPG, and liquid ethylene pipelines, air separation units, and cryogenic storage at temperatures down to -196°C, with pressure ratings from PN16 to PN420.
Key Features
True Cryogenic Performance – Designed for media from -46°C down to -196°C (liquid nitrogen, LNG, LPG, liquid ethylene). This Cryogenic Gate Valve features a long bonnet that keeps packing above 0°C – no freezing, no frostbite risk for operators.
Tough Low‑Temp Materials – Available in LF2, LF3, F304, F316L, plus carbon steel, brass/bronze. As a reliable Cryogenic Gate Valve, all internals undergo deep cryogenic treatment to stabilize the microstructure. Stellite‑hardened sealing face ensures reliable shut‑off.
Built for Class150 & Higher Pressures – Pressure ratings from PN16 to PN420. Extended body‑bonnet bolting manages thermal stress. Suitable for air separation units, cryogenic storage, and low‑temperature pipelines.
On‑Off Service Only – Not for throttling. Operate smoothly without extension levers or impact. Our valves are pressure-tested, seat-leak-tested, and visually inspected before shipment.
Flexible Connections & Standards – Choose flanged, threaded, or welded ends. Compliant with DIN, ANSI, JIS, BS, or GB. Special sizes available on request.
Quality Certification
We hold ISO 9001, ISO 14001, and ISO 45001 certifications, plus a special equipment production license (TS). Our products are made to API, ANSI, JIS, ISO, BS, JB, and GB standards. This covers material checks, non‑destructive testing, precise measurements, and valve strength/sealing performance.
Custom Manufacturing Services
You send us a drawing or sample, and we review the requirements. Then we confirm the drawing and give you a quote — faster if you provide a 3D model. After order confirmation, we schedule batch production.
Application standards
1. Design and manufacture conform to
API 602 BS5352 ANSI B16.34;
2. Connection ends conform to:
1)Socket welded ends conform to
ANSI B16.11:JB/T1751
2)Screw ends conform to
ANSIB1.20.1; JB/T7306
3)Butt-welded ends conform to
ANSI B16.25;JB/T12224
4)Flanged ends conform to ANSI B16.5; JB79
3. Test and inspection conform to:
API 598;GB/T13927; JB/T9092
4. Structure features:
Bolted bonnet, outside screw, and yoke
Welded bonnet, outside screw, and yoke
5. Materials conform to ANSI/ASTM。
6. Main materials;
LF2; LF3; 304(L): 316(L): F347;
F321;F51;
Carbon steel temperature-pressure rate
CL150-285 P.S.I @ 100°F
CL300-740 P.S.I @ 100°F
CL600-1480 P.S.I @ 100°F
CL800-1975 P.S.I @ 100°F
CL1500-3705 P.S.I @ 100°F
| Main Part Materials List | ||||||||
| NO. | Part name | A105/F6a | A105/F6aHFS | LF2/304 | LF3/304 | F304(L)/304(L) | F316(L)/316(L) | F51/F51 |
| 1 | Body | - | - | LF2 | Lf3 | F304(L) | F316(L) | F51 |
| 2 | Seat ring | - | - | 304 | 304 | 304(L) | 316(L) | F51 |
| 3 | Wedge disc | - | - | F304 | F304 | F304(L) | F316(L) | F51 |
| 4 | Stem | - | - | 304 | F304 | 304(L) | 316(L) | F51 |
| 5 | Gasket | - | - | 304+Flexible graphite | 304+Flexible graphite | 304+Flexible graphite | 316+Flexible graphite | 316+Flexible graphite |
| 6 | Bonnet | - | - | LF2 | LF3 | F304(L) | F316(L) | F51 |
| 7 | Bolt | - | - | L7 | L7 | B8 | B8 | B8 |
| 8 | Pin | - | - | 410 | 410 | 304 | 304 | 304 |
| 9 | Gland | - | - | 304 | 304 | 304 | 316 | F51 |
| 10 | Gland eyebolt | - | - | L7 | L7 | B8(M) | B8(M) | B8M |
| 11 | Gland flange | - | - | LF2 | LF3 | F304 | F304 | F304 |
| 12 | Hex nut | - | - | 2H | 2H | 8(M) | 8(M) | 8M |
| 13 | Stem nut | - | - | 410 | 410 | 410 | 410 | 410 |
| 14 | Locking nut | - | - | 35 | 35 | 35 | 35 | 35 |
| 15 | Nameplate | - | - | AL | AL | AL | AL | AL |
| 16 | Handwheel | - | - | A197 | A197 | A197 | A197 | A197 |
| 17 | Lubricatinggasket | - | - | 410 | 410 | 410 | 410 | 410 |
| 18 | Packing | - | - | Graphite | Graphite | Graphite | Graphite | Graphite |
Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd.
Zhejiang Chisheng Valve Technology Co., Ltd. is located in Oubei, Wenzhou, the famous "Hometown of Pumps & Valves in China". We are a professional manufacturer integrated with R&D, production and sales, specializing in forged steel ball valves, as well as various forged steel gate valves, globe valves, check valves, cryogenic valves, vent & drain valves, integral flange forged steel valves and self-sealing forged steel valves.
Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd. * Zhejiang Chisheng Valve Technology Co., Ltd.
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