Low Temperature Steel Globe Valve DN100 Price, -46°C Low Temperature Condition
Factors Affecting the Price of Low Temperature Steel Globe Valve DN100
Currently, the price of a Low Temperature Steel Globe Valve DN100 suitable for -46°C conditions generally ranges from RMB 2,800 to RMB 6,800. The specific price is influenced by the following factors:
Valve Body Material: Standard low-temperature steel (LCB/LCC) costs approximately RMB 2,800-4,500; if LC3 or stainless steel low-temperature series with higher toughness and impact resistance are required, the price can reach RMB 5,000-6,800.The main stop valve product names of China Stop Valve Network include:Flange Straight-through Low Temperature Globe Valve,Forged Steel Straight-through Globe Valve,High Temperature and Pressure Power Station Electric Globe Valve,Oxygen-specific Globe Valve,Vacuum Isolated Straight-through Globe Valve,Y-type Jacket Insulation Globe Valve,GB Bellows Globe Valve,Flange Fluorine-lined Globe Valve.
Structural Length and End Connection: Butt weld connections are slightly lower in cost than flange connections, but have higher installation requirements.
Sealing Surface Material: STL hard alloy sealing surface offers excellent erosion resistance and long service life, with a higher price than conventional PTFE or flexible graphite.
Actuation Method: Manual (handwheel/bevel gear) is the lowest in price, while pneumatic or electric actuator configurations can increase the total cost by 40%-60%.
Design Features for -46°C Low Temperature Condition
Under -46°C conditions, the valve must undergo cryogenic treatment to eliminate phase transformation stress and stabilize the metallurgical structure. An extended bonnet structure ensures that the packing box is kept away from the low-temperature zone, preventing packing freezing and failure. In addition, all pressure-containing parts must pass impact testing at -46°C to ensure no risk of leakage.
Purchasing Suggestions
It is recommended that buyers explicitly require the supplier to provide a -46°C low-temperature impact test report and cryogenic treatment records. Also, confirm that the valve complies with BS 6364 or GB/T 24925 standards. Provide the medium type, pressure rating (Class 150/300), and frequency of operation to obtain an accurate quotation. It is advisable to request quotes from at least three professional low-temperature valve manufacturers for comparison, and make a decision based on comprehensive quality and after-sales service.
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