Cryogenic Gate Valve
Description of Cryogenic ButterflyValve:
As the cryogenic butterfly valve manufacturers, the main material of ZECO cryogenic gate valve is selected. Considering from the metallographic aspect, in addition to austenitic steel, copper and aluminum with face centered cubic lattice, general steel will appear low temperature brittleness at low temperature, thus reducing the strength and service life of the valve. When the temperature is higher than -100℃, choose ferritic steel; when the temperature is lower than -100℃, choose austenitic steel; low pressure and small diameter valves can choose copper and aluminum and other materials. Stem and fastener is selected, when the temperature is higher than -100℃, stem and bolt materials adopt Ni, Cr-Mo alloy steel, through appropriate heat treatment, to improve tensile strength and prevent thread bite. Austenitic stainless steel is used when the temperature is higher than -100℃. Low hardness of 18-8 acid resistant steel will cause mutual abrasion between stem and packing, causing leakage of packing.Therefore, the stem surface must be hard chrome plated (thickness 0.04-0.06mm), or nitride and nickel-phosphorous plated to improve surface hardness.In order to prevent nuts and bolts from biting to death, the nuts are generally made of Mo steel or Ni steel and coated with molybdenum disulfide on the surface of the threads.
Features of Cryogenic Gate Valve:
Material of Cryogenic Gate Valve:
|
No |
Part |
Material |
|
1 |
Body |
ASTM A350 LF3 |
|
2 |
Seat Ring |
ASTM A276 410 + STL |
|
3 |
Wedge |
ASTM A350 LF3 + STL |
|
4 |
Stem |
ASTM A182 F6 |
|
5 |
Bonnet Gasket |
Graphite + SS316 |
|
6 |
Bonnet Bolt |
ASTM A193 B16 |
|
7 |
Bonnet Nut |
ASTM A194 4 |
|
8 |
Bonnet |
ASTM A350 LF3 |
|
9 |
Backseat |
ASTM A182 410 |
|
10 |
Stem Packing |
Reinforced Graphite |
|
11 |
Handwheel |
KTH330-08 |
What We Offer?
As a industrial valve supplier, ZECO always adhere to exceed customer expectations, to provide customers with more value-added
services and products as the ultimate goal.
在线联系供应商
Other supplier products
 |
Metal Seated Butterfly Valve | As one of the china ball valve manufacturers, ZECO always adhere to exceed customer expectations,to provide customers with more international stand... |
 |
Pressure Relief(Sustaining) Valve | Basic informationThis sustaining valveis opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in t... |
 |
Double Orifice Air Release Valve | Festures of double air release valve Body is provided with a shock-proof inner tube to protect the float； Lower water pressure can be closed to... |
 |
Check Valve | The check valve for water of ZhengFeng is the advanced pipe control equipment at home and abroad, mainly installed at the entrance of hydropower st... |
 |
WCB Valve – WCB Gate Valve | Description As one ofgate valve manufacturers china, ZECO Valve Group is certified to API 600 and API 6D and we offer competitive quotations as we... |
Same products
 |
China Gate valve | 卖方: Yuanda Valve Group Co.,Ltd. | China Gate valve China Gate valve A is a type of valve that uses a gate or wedge-shaped dis... |
 |
Gate Valve Vs. Ball Valve | 卖方: Yuanda Valve Group Co.,Ltd. | Gate Valve Vs. Ball Valve Gate valves and ball valves are both types of valves that are used... |
 |
Non Return Valve Suppliers China | 卖方: Yuanda Valve Group Co.,Ltd. | Non Return Valve Suppliers China refers to the opening and closing member for the circular v... |
 |
Common Types Of Check Valves | 卖方: Yuanda Valve Group Co.,Ltd. | Common Types Of Check Valves A is a valve whose switching parts are disc-shaped and rely on ... |
 |
Brass ball valve | 卖方: Yuanda Valve Group Co.,Ltd. | Brass ball valve Brass ball valve Applications: Water Supply: Commonly used in residentia... |
