Flanged Swing Check Valve

H44H flanged swing check valve provides automatic non-return protection with low pressure drop for steam, water, oil, and compatible industrial pipeline systems. Its hinged-disc design is suitable for medium and large-diameter pipelines, pump discharge lines, HVAC systems, and general industrial applications.

PRODUCT DETAILS

The H44H Flanged Swing Check Valve is designed to provide automatic non-return protection in steam, water, oil, and compatible industrial pipeline systems.

The valve operates automatically without an external actuator. Forward flow swings the hinged disc away from the seat, while reverse flow or pressure loss causes the disc to return to the seat and prevent backflow.

The swing-disc design provides a large flow area and relatively low pressure drop, making the valve especially suitable for medium and large-diameter pipelines. Counterweight-assisted or spring-assisted closing configurations can also be supplied where faster closing response or reduced water hammer is required.

Technical Specifications

Valve Type Flanged Swing Check Valve
Connection Flanged
Size Range DN50-DN1200
Pressure Rating PN16 / PN25 / PN40 / PN64, ASME Class 150 / 300
Body Material Ductile Iron, WCB Carbon Steel, CF8, CF8M
Sealing Surface Cr13 Stainless Steel, Stellite Option
Disc / Hinge Pin Cr13 Stainless Steel, SS304, SS316
Operation Automatic Non-Return
Installation Horizontal or Vertical Pipeline with Upward Flow
Typical Applications Steam, Water, Oil, Pump Discharge, HVAC and Large Industrial Pipelines

Key Features

  • Automatic non-return operation without external actuator
  • Hinged swing-disc design with large flow area
  • Low pressure drop for medium and large-diameter pipelines
  • Cr13 metal sealing surface for wear resistance
  • Flanged connection for stable pipeline installation
  • Suitable for horizontal and approved vertical installations
  • Counterweight and spring-assisted closing options available
  • Suitable for pump, HVAC, steam, water, oil, and industrial systems

Applications

The H44H Flanged Swing Check Valve is suitable for pump discharge lines, compressor systems, steam pipelines, boiler feedwater and condensate systems, oil pipelines, HVAC chilled and heating water systems, and large-diameter industrial pipelines requiring reliable reverse-flow protection with low pressure loss.

ZEMTECH GAS provides product selection support based on valve size, pressure rating, body material, flange standard, service medium, operating temperature, installation orientation, sealing surface, and closing-assistance requirements.

TECHNICAL SPECIFICATIONS

Product Specifications

Specifications may vary by model, material, pressure rating and project requirements.

Model

H44H

Size Range

DN50-DN1200

Pressure Rating

PN16 / PN25 / PN40 / PN64, Class 150 / 300

Body Material

Ductile Iron, WCB, CF8, CF8M

Installation

Horizontal, Vertical Upward Flow

Quality Control

Products are checked according to order requirements and applicable specifications before delivery

Technical Documentation

Product specifications, technical data, and related documents can be provided based on project requirements

Selection Support

Our team can assist with product selection based on application, medium, pressure, size, and installation requirements

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