Products Description
LCB Cryogenic Gate Valve is a gate valve specifically designed for cryogenic environments, where the closure element (gate) moves perpendicular to the fluid flow direction, allowing only full-open or full-closed operation-not for throttling or flow regulation. It is suitable for cryogenic media such as methane, liquefied natural gas (LNG), ethylene, liquid carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, and liquid hydrogen.
Key Design Features:
Extended Bonnet (Long Neck Structure) – Facilitates insulation to maintain the temperature at the bottom of the stuffing box above 0°C, preventing freezing.
Pressure Relief Holes – Installed on the inlet side of the gate to prevent abnormal pressure buildup in the valve cavity.
Cryogenic Impact Testing – Valve materials undergo low-temperature impact testing to ensure they remain ductile and avoid brittle fracture under cryogenic conditions.
Deep Cryogenic Treatment – For valves operating below -101°C, components undergo deep cryogenic treatment before final machining to enhance material stability.
Products specification
Nominal Diameter: DN20-DN400
Structure: Gate
Nominal Pressure: 1.6-10.0 MPa/150-300-600 lbf
Connection: Flange
Applicable Temperature: -20°C--101°C--196°C
Actuation: Manual, bevel gear, electric, pneumatic, hydraulic
Body Material: Cast Steel, Forged Steel, Stainless Steel
Manufacturing Standards: GB, DIN, API, ANSI
Applicable Media: Liquid Nitrogen, Ethylene, Methane, Liquid Natural Gas, Carbon Dioxide, etc.
Wide Applications: Petroleum, Chemical, Power, Environmental Protection, Water Conservancy, Heating, Water Supply and Drainage, Industry, Machinery
Advantages of Cryogenic Gate Valves
Excellent Sealing Performance
Equipped with two sealing surfaces, typically forming a wedge-shaped angle (usually 50°, varying with valve parameters).
During closure, the sealing surfaces rely on medium pressure to ensure tightness-the pressure forces the gate's sealing surface against the valve seat, achieving reliable sealing.
Low Fluid Resistance
The streamlined design minimizes flow resistance, reducing energy consumption during operation.
Compact Structure
Simple geometry and short structural length enhance manufacturability while broadening application scope.
Cryogenic Adaptability
Specialized treatments (e.g., deep cryogenic processing) ensure resilience in extreme low-temperature environments, preventing deformation or leakage.
Low temperature LCB gate valve for sale
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