What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

Is the valve suitable for fire-fighting systems?

Yes, it is applicable for fire-fighting water, potable water, and air-conditioning circulating water.

Anti-Pollution Backflow Prevention Assembly with Flange Control Valve

Name: Anti-Pollution Backflow Prevention Assembly with Flange Control Valve
Brand: Fujian Quanguan Valve Manufacturing Co., Ltd.
SKU: 2325891595

Fujian, ChinaFujian Quanguan Valve Manufacturing Co., Ltd.

US$230.00-1,300.00

1 Piece

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Temperature

0 ℃-80 ℃

Certification

ISO9001

Model NO.

HS41X-16Q

Media

Water

Standard

Connection Mode

Flange

Material

Stainless Steel

Type

Self-Operated

Nominal Pressure

1.0 MPa,1.6 MPa

Sealing Material

EPDM

Color

Blue or Black

Function

Block Polluted Backflow

Application

High-Rise Buildings, Secondary Water Supply

Advantage

Double Safety Protection, Low Resistance

Transport Package

Export Standard Package

Specification

DN40-DN600

Trademark

quanguan

Origin

China

Key features

Double Safety Protection: Series-connected dual check valves with intermediate drainer prevent backflow even if both valves leak.

Wide Pressure Range: Available in 1.0 MPa and 1.6 MPa nominal pressures for various pipeline requirements.

Durable Materials: Constructed with ductile iron, cast steel, or stainless steel with EPDM sealing for corrosion resistance.

Low Flow Resistance: Straight-flow streamlined design reduces head loss for energy conservation.

Flexible Customization: Supports full, minor, and flexible customization from samples or designs.

Versatile Applications: Ideal for high-rise buildings, secondary water supply, hospitals, and fire-fighting systems.

Easy Installation: Flanged connection with compact dimensions and horizontal mounting capability.

Long Service Life: Wear-resistant movable parts ensure maintenance-free operation and high reliability.

Company profile

High Repeat Buyers ChoiceSelf-brandedExhibition ExperienceODM Services

Fujian Quanguan Valve Manufacturing Co., Ltd.

Fujian, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 Years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤10.51h

AI-Powered supplier vetting

SummaryQuanguan Valve is identified as a professional valve manufacturer in Quanzhou, Fujian, producing and selling water-system and HVAC valves, including gate valves, pressure-reducing valves, and static-balance valves. Its broader scope also covers fire-fighting equipment, pipe fittings, plumbing, copper, rubber, and plastic products. The supplier provides extensive customization and ODM services, with documented R&D design inputs, outputs, reviews, verification, and validation; however, it reported no new products in the past year and has zero R&D patents. Manufacturing covers a 2,863 m² plant and two production lines, but finished-product inspection is performed by packing staff and batch quantity reconciliation is not conducted continuously. Export experience is stated as seven years, with two export-trade staff and three experienced staff reported. Service weaknesses include no written corrective/preventive-action, complaint-handling, or service-capability assessment procedures. No certification, customer...

Supplier typeThe supplier is explicitly described as a valve manufacturer engaged in production, R&D, and sales, with products spanning valves, fire-fighting equipment, pipe fittings, plumbing, and related industrial and building-material categories. Its stated commercial focus is industrial equipment and components, particularly water-system and HVAC valves.

After-Sales capabilityThe supplier accepts multiple quotation and payment arrangements and reports peak-season lead time of one month and off-season lead time within 15 working days. However, it has no written corrective/preventive-action procedures, no written complaint-handling procedures or records, and no written service-capability assessment procedure or records, indicating a documented after-sales service weakness.

Production capacityThe supplier operates a 2,863 m² manufacturing plant with two production lines and manufactures valves and related products; it also reports seven years of export experience. Production-control limitations are stated: finished products are checked by packing staff, and continuous quantity reconciliation for each batch or mass-production run is not performed.

Customization capabilityThe supplier explicitly offers customization from samples, designs, minor and full customization, flexible customization, and ODM services. Its R&D responsibilities and documented design inputs, outputs, reviews, verification, and validation further support the ability to develop customer-requested products.