Lift type forged steel check valve

Product Overview

The Lift Type Forged Steel Check Valve is a precision-engineered solution designed for compact pipeline backflow prevention in high-pressure systems. Featuring a vertically moving disc and forged steel construction, it ensures reliable one-way flow control in steam, gas, and liquid applications. Designed for horizontal installation only, this valve is not suitable for throttling or vertical pipelines.

Applications

Steam Systems: Boiler feedwater and steam trap protection.
Instrumentation: Analyzer and gauge line backflow prevention.
Gas Distribution: Natural gas and compressed air systems.
Hydraulic Units: Pump discharge protection in compact machinery.

Key Features

Forged Compact Design

• Material: Forged A105 (carbon steel) or F316 (stainless steel).
• Pressure Rating: ANSI Class 800–1500 (PN100–PN260).
• Temperature Range: -29°C to 200°C (EPDM seals) / 450°C (metal seals).

Lift Disc Mechanism

• Guided Disc: Precision-machined stem ensures vertical movement alignment.
• Quick Closure: Spring-assisted closing (optional) for <0.3秒 response time.
• Sealing Options:
• • Metal-to-metal (Stellite 6 seat)
  • Soft seat (PTFE/Viton) for ANSI Class VI leakage.

Space Optimization

• Ultra-Compact: 40% shorter than swing check valves (e.g., DN50 valve length: 80mm).
• Connection Types:
• • Threaded (NPT/BSPP): DN15-DN25
  • Socket Weld: DN15-DN50
  • Flanged (optional): RF/RTJ for DN40-DN50.

Operational Advantages

• Low Inertia: 60% lighter disc than swing types for faster closure.
• Zero Maintenance: Self-cleaning disc design prevents debris accumulation.
• High Repeatability: ±0.02mm disc guidance ensures consistent sealing.
• Leakproof: Dual sealing (disc + body seat) for critical applications.

Comparison with Swing Check Valves