Ductile Iron Swing Check Valve
Ductile Iron Swing Check Valve

Ductile Iron Swing Check Valve

The Ductile Iron Swing Check Valve is designed to prevent reverse flow in pipeline systems and protect pumps and equipment from backflow and pressure shock.

Send Inquiry

Product Introduction

Product Overview

The Ductile Iron Swing Check Valve is designed to prevent reverse flow in pipeline systems and protect pumps and equipment from backflow and pressure shock.

The disc swings on a hinge and closes automatically when flow stops or reverses. The structure is simple, stable, and suitable for continuous operation in municipal water supply, wastewater treatment, and industrial fluid systems.

Ductile Iron Swing Check Valve

Product Parameter

Parameter	Specification Details
Product Name	Ductile Iron Swing Check Valve
Main Material	Ductile Iron
Working Temperature	0℃ to 80℃(32℉ to 176℉ )
Size	2" to 12"(DN50 to DN300)
Pressure Rating	1.0Mpa/1.6Mpa/2.5Mpa
Working Medium	Water/Sewage
Color	Blue/Red
Applications	Suitable for horizontal installations and vertical pipelines with upward flow to prevent backflow and water hammer.
Body	Ductile Iron,QT450-10
Hinge Pin / Shaft	Stainless Steel 304
Disc	Ductile Iron covered by EPDM
Seal	NBR
Bolt	Stainless Steel 304

Why Choose Our Ductile Iron Swing Check Valve

Premium ductile iron GGG40 body delivers tensile strength up to 400 MPa and 10% elongation, providing high pressure resistance compared to standard cast iron.

Fusion Bonded Epoxy coating with a minimum thickness of 250 microns offers extensive corrosion protection and helps extend pipeline service life.

The full-bore, hydrodynamically designed body allows the disc to swing fully out of the flow path, minimizing head loss and reducing pumping energy costs.

Fully encapsulated EPDM or NBR discs provide reliable, drop-tight sealing even under low backpressure conditions to prevent water hammer.

Stainless steel hinge pins and rugged shaft designs prevent internal seizure and ensure smooth disc operation over extended duty cycles.

Standards & Quality Compliance

Design Standard

Complies with BS EN 1074-3 / AWWA C508.

Face-to-Face Dimensions

Conforms to EN 558-1 Series 10 / ASME B16.10.

Flange Drilling

Matches EN 1092-2 PN10/PN16 or ANSI B16.1 Class 125.

Factory Pressure Test

100% hydrostatic testing (Shell: 1.5x PN, Seat: 1.1x PN) performed on every unit per EN 12266-1 / API 598 before packing.

Commercial & Logistics

MOQ

Flexible minimum order quantity tailored for valve distributors and stockists.

Lead Time

Est. 25-35 days depending on batch size and customization requirements.

Customization

Full support for custom body markings (logo, brand name, pressure rating) and tailored coating colors.

FAQ

Q: Do you provide material traceability and test reports?

A: Yes, we provide Mill Test Certificates (MTC) complying with EN 10204 3.1, including chemical composition and mechanical properties, for every batch.

Q: Can your valves be installed both horizontally and vertically?

A: Yes, they are suitable for horizontal installations, as well as vertical pipelines with upward flow direction.

Q: What is the standard thickness of your epoxy coating?

A: We apply a minimum of 250 microns of Fusion Bonded Epoxy (FBE) coating inside and out, which is verified by high-voltage holiday testing.

Q: Do you offer OEM/ODM services for branding?

A: Yes, we can cast or engrave your logo, pressure ratings, and customized markings onto the valve body according to your requirements.

Q: How do you pack the valves to prevent damage during sea freight?

A: Valves are sealed in dustproof bags, fitted with plastic flange protectors, and securely packed in standard, fumigation-free plywood cases.

Hot Tags: ductile iron swing check valve, China ductile iron swing check valve manufacturers, suppliers, factory, 100mm Swing Check Valve, 3 Inch Flanged Check Valve, 4 Inch Swing Check Valve, Ductile Iron Swing Check Valve, Swing Check Valve Flange Type, Wafer Butterfly Check Valve

100mm Swing Check Valve

Grooved Swing Check Valve