Forged steel swing check valve

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Forged steel swing check valve

Forged steel swing check valve

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.
Label：High pressure valve
Category：Forged Steel Check Valve, Swing Check Valve
Working conditions：chemical plant, High temperature and high pressure, High temperature and high pressure steam system, Petrochemical industry
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Product Overview

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.

Applications

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.

Key Features

Compact Forged Design

  • Material: Forged A105 or F316 steel for space-constrained installations.
  • Pressure Rating: ANSI Class 800–1500 (PN100–PN260).
  • Temperature Range: -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.
  • Connection Types:
    1. Threaded (NPT/BSPP): DN15-DN25
    2. Socket Weld: DN15-DN50
    3. Flanged (optional): DN40-DN50.

Comparison with Mini Ball Check Valves

FeatureSwing Check ValveBall Check Valve
Flow EfficiencyHigher (full-port design)Lower (restricted flow path)
Debris ToleranceGood (no small moving parts)Poor (ball jamming risk)
Pressure Drop<0.05 bar>0.2 bar
Size RangeDN15-DN50DN6-DN25

Medium
petroleum, steam

Working conditions

chemical plant, High temperature and high pressure, High temperature and high pressure steam system, Petrochemical industry, power plant

Summarize

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.

Product Parameters

Size RangeDN15–DN50 (½"–2")
Pressure RatingANSI Class 800–2500 (PN100–PN420)
Temperature Range-29°C to 200°C (EPDM seals) / -29°C to 593°C (metal seals)
Body MaterialASTM A105 (Carbon Steel) / F316 (Stainless Steel)
Disc Material316L SS / 13% Cr Stainless Steel
Hinge Pin MaterialSS316 / 17-4PH Stainless Steel
Seat LeakageANSI Class IV (metal) / Class VI (soft seat)

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