Forged steel swing check valve

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.

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

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)

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.

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