Stainless Steel Forged Steel Low Temperature Globe Valves

Stainless Steel Forged Steel Low Temperature Globe Valves are high-precision shut-off and regulating valves specially designed for low-temperature (≤ -40℃) and cryogenic services.Adopting integral forging technology combined with optimized low-temperature structure, the valves ensure stable operation and reliable sealing even under extreme temperatures.

The valve controls the opening, closing and flow rate of low-temperature media by driving the disc up and down via the valve stem.Compared with conventional cast steel valves, forged structure features denser material, higher strength and better low-temperature impact toughness, effectively reducing the risk of brittle fracture.These Stainless Steel Forged Steel Low Temperature Globe Valves are widely used in LNG, liquid nitrogen, liquid oxygen and petrochemical cryogenic systems, serving as key control components for low-temperature pipelines.

Core Structure & Performance Features

Integral Forged Structure

The body and bonnet are machined from integral forgings with dense material structure, free from blowholes and porosity.Excellent mechanical properties are maintained at low temperatures, improving long-term service reliability.

Low-Temperature Anti-Condensation Design

Equipped with extended bonnet and cold bridge prevention structure to reduce cold conduction to the packing gland,lowering the risk of frost buildup and leakage, ensuring stable performance under cryogenic conditions.

Dual Sealing Options

● Metal hard seal: suitable for high pressure and frequent operation

● Low-temperature soft seal: suitable for clean cryogenic media Users can select flexibly according to medium characteristics.

Multiple Actuation Types

Manual, electric and pneumatic actuation are available for easy integration into various automated systems.

Main Technical Parameters

Main Material Configuration

Typical Applications

Stainless Steel Forged Steel Low Temperature Globe Valves are suitable for:

● LNG terminals, storage and transportation systems

● Liquid nitrogen and liquid oxygen pipelines

● Ethylene, propane cryogenic units

● Petrochemical low-temperature systems

● Aerospace cryogenic medium systems

● Industrial refrigeration systems

For slightly corrosive or high-purity media, customized material and sealing combinations are available.

Selection Guidelines

To ensure long-term reliable performance of Stainless Steel Forged Steel Low Temperature Globe Valves, please consider:

Temperature Grade Matching

● -40℃ ~ -70℃: 304L / 316L

● ≤ -100℃: 316L or 904L preferred

Medium Cleanliness

● Clean cryogenic service: soft seal recommended

● High pressure or particle-containing media: metal seal recommended

Automation Requirements

● Local operation: manual type

● Remote control: low-temperature electric or pneumatic type

Flange & Gasket

For cryogenic service, RJ face + spiral wound gasket is preferred to avoid failure of ordinary rubber gaskets at low temperatures.

Installation & Operation Notes

For safe operation, observe the following when using Stainless Steel Forged Steel Low Temperature Globe Valves:

● Check low-temperature grade, material and flow direction before installation.

● Install in the direction of the arrow (low inlet, high outlet).

● Cool down step by step before commissioning to avoid thermal shock.

● Electric/pneumatic actuators should be commissioned at room temperature first.

● Do not tighten packing directly at low temperature if minor leakage occurs.

Maintenance & Inspection Recommendations

Long-term stable operation depends on proper maintenance:

● Regularly inspect packing gland and flange seals.

● Perform periodic UT / MT non-destructive testing.

● Conduct air-tightness test before restarting after shutdown.

● Disassembly and inspection must be performed at room temperature.

Standard maintenance can significantly extend the service life and reduce operational risks of Stainless Steel Forged Steel Low Temperature Globe Valves.