锻钢旋启式止回阀

Type：HHY，H44H

Subtitle：High pressure check valve

The Forged Steel Swing Check Valve is a compact, high-performance solution designed for small pipeline backflow prevention (DN15-DN50). Featuring precision-forged construction and a lightweight swing disc, it ensures reliable one-way flow control in instrumentation, sampling, and utility systems. This valve operates automatically and is not suitable for flow regulation.

标签：高压阀

类别：锻钢止回阀, 旋启式止回阀

工作条件化工厂, 高温高压, 高温高压蒸汽系统, 石化工业

产品概览

The Forged Steel Swing Check Valve is a compact, high-performance solution designed for small pipeline backflow prevention (DN15-DN50). Featuring precision-forged construction and a lightweight swing disc, it ensures reliable one-way flow control in instrumentation, sampling, and utility systems. This valve operates automatically and is not suitable for flow regulation.

应用

Instrumentation: Protection of gauges and analyzers in oil/gas systems.
Utility Lines: Small steam, air, and water distribution networks.
Chemical Injection: Metering pump discharge protection.
Laboratory Systems: Research and testing equipment fluid control.

主要功能

Compact Forged Design

材料: Forged A105 or F316 steel for space-constrained installations.
压力等级: ANSI Class 800–1500 (PN100–PN260).
温度范围: -29°C to 200°C (standard seals).

Optimized Swing Mechanism

Low-Inertia Disc: 316L stainless steel disc (thickness: 3–6mm) for quick response.
Sealing Options:
1. Metal-to-metal (standard)
2. EPDM/NBR soft seat (ANSI Class VI leakage).
Hinge Design: Self-lubricating bronze bushing for smooth operation.

Installation Flexibility

Multi-Orientation: Horizontal or vertical (flow upward) mounting.
连接类型:
1. Threaded (NPT/BSPP): DN15-DN25
2. Socket Weld: DN15-DN50
3. Flanged (optional): DN40-DN50.

Comparison with Mini Ball Check Valves

特点	旋启式止回阀	Ball Check Valve
Flow Efficiency	Higher (full-port design)	Lower (restricted flow path)
Debris Tolerance	Good (no small moving parts)	Poor (ball jamming risk)
Pressure Drop	<0.05 bar	>0.2 bar
尺寸范围	DN15-DN50	DN6-DN25

中型

石油, 蒸汽

工作条件

化工厂, 高温高压, 高温高压蒸汽系统, 石化工业, 发电厂

总结

This compact Forged Steel Swing Check Valve delivers reliable backflow prevention for small-scale critical applications. Its maintenance-free operation and precision forging make it ideal for instrumentation, utility, and chemical injection systems. For automatic on/off service only.

产品参数

尺寸范围	DN15–DN50 (½"–2")
压力等级	ANSI Class 800–2500 (PN100–PN420)
温度范围	-29°C to 200°C (EPDM seals) / -29°C to 593°C (metal seals)
机身材料	ASTM A105 (Carbon Steel) / F316 (Stainless Steel)
圆盘材料	316L SS / 13% Cr Stainless Steel
Hinge Pin Material	SS316 / 17-4PH Stainless Steel
Seat Leakage	ANSI Class IV (metal) / Class VI (soft seat)