Description
Buy Low Temperature Gate Valve PN16/25/40 Stainless Steel Flanged Manual Operation
The Low Temperature Gate Valve PN16/25/40 Stainless Steel Flanged Manual Operation from VALVEHU is expertly engineered to meet the demanding requirements of cryogenic service applications. Manufactured in strict accordance with Chinese national standards including GB/T12234-2019 for design and manufacturing, JB/T79-2015 for flange connection, and GB/T26480-2011 for pressure testing and inspection, this valve ensures long-term reliability and safety.
This cryogenic gate valve, available in PN16, PN25, and PN40, features a full stainless steel body with precision-machined components to withstand extremely low temperatures without compromising mechanical strength or sealing performance. The flanged end connections offer easy and secure integration into pipeline systems, while the rising stem and manual handwheel design ensures accurate visual status indication and smooth operation.
It is offered in nominal diameters ranging from DN15 to DN500, with optimized face-to-face lengths (130–1150 mm), overall heights (175–2250 mm), and handwheel diameters (180–720 mm), depending on size and pressure rating. The model variants DZ41W/H and DZ941W/H provide options for manual or actuator-ready operation, allowing for greater flexibility in industrial system design.
This stainless steel isolation valve is ideal for applications in LNG, cold water processing, air separation units, and chemical industries where low-temperature performance is non-negotiable. The valve’s high-strength bonnet structure and cryogenic extension neck minimize heat conduction, preventing frosting near the actuator or handwheel.
When precision, durability, and compliance with cryogenic standards matter, this valve stands out as a proven solution. For assistance in choosing the best low temperature valve or other industrial valve types, contact VALVEHU today. Our experienced engineers in China are ready to help you make the right selection tailored to your specific needs.
Technical Specifications
Type: Low Temperature / Cryogenic Gate Valve
Pressure Ratings: PN16, PN25, PN40
Body Material: Stainless Steel
Design Standard: GB/T12234-2019
Flange Standard: JB/T79-2015
Testing Standard: GB/T26480-2011
Operation: Manual Handwheel (Rising Stem)
Connection: Flanged Ends
Size Range: DN15 to DN500
Application: LNG, air separation, cold water, chemical systems
Main Connection Dimensions – Gate Valve – PN1.6MPa
| Size (DN) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face-to-Face (L / L1) (mm) | 130 | 150 | 160 | 180 | 200 | 250 | 265 | 280 | 300 | 325 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 | 800 | 900 |
| Overall Height (H) (mm) | 175 | 180 | 210 | 210 | 350 | 358 | 373 | 435 | 500 | 614 | 674 | 818 | 1225 | 1415 | 1630 | 1780 | 2050 | 2181 | 2599 | 2845 |
| Handwheel Diameter (W) (mm) | 180 | 180 | 200 | 200 | 200 | 240 | 240 | 280 | 320 | 360 | 360 | 400 | 450 | 500 | 500 | 600 | 720 | 720 | 720 | 720
|
Main Connection Dimensions – Gate Valve – PN2.5MPa
| Nominal Size (DN) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face-to-Face (L / L1) [mm] | 130 | 150 | 160 | 180 | 200 | 250 | 265 | 280 | 300 | 325 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 | 800 | 900 |
| Overall Height (H) [mm] | 175 | 180 | 210 | 210 | 350 | 358 | 373 | 435 | 500 | 614 | 674 | 818 | 1225 | 1415 | 1630 | 1780 | 2050 | 2181 | 2599 | 2845 |
| Handwheel Diameter (W) [mm] | 180 | 180 | 200 | 200 | 200 | 240 | 240 | 280 | 320 | 360 | 360 | 400 | 450 | 500 | 500 | 600 | 720 | 720 | 720 | 720 |
Main Connection Dimensions – Gate Valve – PN4.0MPa
| Nominal Size (DN) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face-to-Face (L / L1) [mm] | 130 | 150 | 160 | 180 | 200 | 250 | 280 | 310 | 350 | 400 | 450 | 550 | 650 | 750 | 850 | 950 | 1050 | 1150 |
| Overall Height (H) [mm] | 175 | 180 | 210 | 210 | 350 | 386 | 430 | 498 | 558 | 650 | 720 | 1086 | 1298 | 1530 | 1750 | 1900 | 2100 | 2250 |
| Handwheel Diameter (W) [mm] | 180 | 180 | 200 | 200 | 200 | 240 | 240 | 280 | 320 | 360 | 360 | 450 | 560 | 560 | 500 | 600 | 720 | 720 |
FAQ
What makes this low temperature gate valve suitable for cryogenic applications?
It features a stainless steel body and extended bonnet to reduce heat transfer and avoid frost, per GB/T12234-2019.
What are the available pressure ratings for this cryogenic gate valve?
Available in PN16, PN25, and PN40. Each unit is pressure-tested per GB/T26480-2011.
Can this valve be used in automated systems with actuators?
Yes. The DZ941W/H model supports electric or pneumatic actuators.
How do I select the correct valve size and face-to-face dimension for my pipeline?
Refer to the DN and pressure class charts based on GB/T12221 for dimensional compatibility.
Why should I choose VALVEHU for cryogenic gate valves?
VALVEHU ensures GB/T-compliant design, factory testing, and expert support for industrial projects.
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