Main features: The stem neck of the low-temperature valve adopts an elongated structure, which aims to protect the packing and packing box, and keep the working temperature of the packing above zero degrees. Prevent valve failure due to the loss of elasticity of the packing during low-temperature operation. The elongated neck design also facilitates insulation work. Mainly used in ethylene, liquefied natural gas plants, natural gas LPG LNG storage tanks, receiving bases and satellite stations, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide low-temperature storage tanks and tank trucks, pressure swing adsorption oxygen production and other devices.
Design standards: API 6D API 608 ISO 17292 BS 6364
Product range:
1. Pressure range: CLASS 150Lb~900Lb
2. nominal diameter: NPS 1/2~24″
3. Main materials: stainless steel, alloy steel
4. Connection forms: RF RTJ BW
5. Minimum operating temperature:- 196℃
6. Operation modes: handle, worm gear, electric device, pneumatic device, hydraulic device, gas-liquid linkage device;
Product features:
1. Low fluid resistance, fire-resistant and anti-static structural design;
2. Floating ball or fixed ball structures can be provided as required;
3. Soft sealed valve seat, reliable sealing performance;
4. When fully open, the sealing surface is not eroded by the working medium;
5. valve stem multiple sealing structure, good sealing performance;