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
 |
Manual Balancing Valve | Festures of manual central heating balancing valve Straight flow structure, low fluid resistance; Handwheel display the number of opening cyc... |
 |
Motorized Butterfly Valve | As one of the leadingchina ball valve suppliers, ZECO Valve Group developed our own laboratory for research &development for international stan... |
 |
Triple Offset Butterfly Valve | Categories: Butterfly Valve, Butterfly Valve By Form, Triple Offset Butterfly Valve Tag: What is a Valve Description The triple offset butterf... |
 |
Gate Valve | The resilient seated water isolation big size gate valve / cast iron gate valve china of ZECO from China is widely used and reliable in the water s... |
 |
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... |
Same products
 |
"High-reliability Support ring Y10-4 for power station | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "High-reliability Support ring Y10-4 for power station Deyang YOYIK have power plant professional... |
 |
"Wear Resistance dn50 globe valve WJ25-F1.6P for thermal power plant | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Wear Resistance dn50 globe valve WJ25-F1.6P for thermal power plant YOYIK professional productio... |
 |
High-efficiency Superheater outlet plug valve SD61H-P61305V SA-182 F92 for power generation | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "High-efficiency Superheater outlet plug valve SD61H-P61305V SA-182 F92 for power generation Deya... |
 |
Automated Sealing gasket for corrugated pipe shut-off valve KHWJ25F3.2P for power station | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Automated Sealing gasket for corrugated pipe shut-off valve KHWJ25F3.2P for power station Is a m... |
 |
Class 1500 LB gate valve | 卖方: Magpie Valve Packing Gasket Co., Ltd | Product Name: Low-EmissionPacking Setfor Class 1500 LB API 6D Gate ValveModel: M600Size: ID 68 mm... |
