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API 6D Cast Steel Swing Check Valve for Pipeline Backflow Prevention

Automatic swing check valve opened and closed by medium flow to prevent pipeline backflow, with inner or outer pin-shaft and threaded or welded seat configurations.

Technical Specifications
Size Range2″–60″ (DN50–DN1500)
Pressure RatingClass 150–2500 (PN16–PN420)
Body MaterialCarbon steel, stainless steel, alloy steel, duplex steel, low-temperature steel, nickel-base alloy, titanium alloy, etc.
Connection TypeRF, BW, RTJ, etc.
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Frequently Asked Questions

It opens and closes automatically through the flow of the medium itself, allowing forward flow and closing to prevent reverse flow.

The original page lists both inner pin-shaft and outer pin-shaft configurations for technical selection.

Threaded-seat and welded-seat arrangements are both listed. The appropriate construction should be confirmed during project review.

It is suitable for clean media and is not recommended for media containing solid particles or for high-viscosity service, according to the original product information.

Provide the medium, size, pressure, body material, connection, preferred pin-shaft and seat arrangements, quantity and project documentation requirements.

Product Overview

The Vornet Cast Steel Swing Check Valve is an automatic pipeline valve used to prevent reverse flow. The disc responds to the flow of the medium itself, opening for forward flow and closing when the flow reverses.

The product range includes inner and outer pin-shaft configurations as well as threaded-seat and welded-seat arrangements. These stated construction options allow the valve design to be reviewed against pipeline layout and maintenance requirements.

This API 6D-compliant product is intended for pipeline backflow-prevention applications with clean media. The original page specifically advises against using it for media containing solid particles or for high-viscosity conditions.

  • Automatic Backflow Prevention: Operates through medium flow without a separate actuator.
  • Pin-Shaft Options: Inner and outer arrangements are listed.
  • Seat Options: Threaded and welded constructions are available.
  • Media Guidance: Suitable for clean media and not recommended for solids or high viscosity.

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