What are the typical applications for this valve?

It is widely used in municipal water supply, industrial pipelines, residential networks, commercial buildings, and fire protection systems.

What is the power source for this valve?

The valve operates hydraulically without external power requirements.

Ductile Iron Flanged Double Check Backflow Preventer Valve for Water Supply

Name: Ductile Iron Flanged Double Check Backflow Preventer Valve for Water Supply
Brand: Keep Promise Global (Xiamen) Holding Limited
SKU: 2260620235

Fujian, ChinaKeep Promise Global (Xiamen) Holding Limited

US$39.00-598.00

5 Pieces

Product profile

Customization

Available

Temperature

Ordinary Temperature

Certification

CE, ISO9001

Model NO.

HS41X-10/16-A

Media

Water

Standard

ISO

Connection Mode

Flange

Power

Hydraulic

Material

Ductile Iron

Type

Double Seater

Control Type

Pilot Operated

Working Medium

Water

Pressure Rating

Pn10 / Pn16

Working Temperature

0℃-80℃

Structure

Double Check

Transport Package

Standard Sea Worthy

Specification

DN50-DN400

Trademark

OEM

Origin

Fujian

HS Code

848180409

Production Capacity

500000pieces/Year

Key features

Double Check Structure: Two check valves in series ensure tight seal and reliable backflow prevention.

Ductile Iron Body: Strong corrosion-resistant material ensures long service life and stability.

Low Pressure Loss: Stable sealing design minimizes pressure drop for efficient water flow.

Easy Maintenance: Simple installation and maintenance structure for convenient upkeep.

Wide Application: Suitable for municipal, industrial, residential, and fire protection systems.

Safety Assurance: Prevents downstream contamination with high reliability and safety.

Custom Configurations: Main external dimensions and configurations available upon request.

Certified Quality: CE and ISO9001 certified for guaranteed product quality and standards.

Company profile

Importers and ExportersFast DeliveryFlexible CustomizationR&D Capabilities

Keep Promise Global (Xiamen) Holding Limited

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2020-03-01Nearest Port: XiamenAverage Response Time: ≤1.71hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryKeep Promise Global (Xiamen) Holding Limited is a China-based limited trading company established in 2021, focused on valves and reporting 10 employees. It states that it offers minor and flexible customization, OEM/ODM production, technical support, and a one-month order fulfillment time in both peak and off-peak seasons. However, the provided records show no available SDK, no management-system certification, no written corrective-action or complaint-handling procedures, and zero quality-control testing equipment. Financial records are indicated for 2022–2024, but no financial results or financial condition are provided. The supplier has an audit record by TUV Rheinland, but the stated evaluation result is 0, with no interpretation supplied. No customer cases or customer references are documented.

Supplier typeThe supplier is identified as a limited company and trading company headquartered in Xiamen, Fujian, China, with 10 employees and no stated affiliation with a larger company group. Its stated business scope includes general trading activities, while valves are identified as its primary product.

CertificationsNo supplier management-system certifications are recorded. Although a TUV Rheinland audit is listed with dates from December 8, 2025 to December 7, 2026, the audit evaluation result is stated as 0 and no certification or positive audit interpretation is provided.

After-Sales capabilityThe supplier describes technical support, but it has no written procedures or records for corrective and preventive actions or customer complaint handling. This directly indicates a documented after-sales process deficiency, despite the general service claim.

Production capacityThe supplier is classified as a trading company, and its product scope identifies valves, but no manufacturing capacity is documented. Production-control evidence is weak: quality-control testing equipment is listed as 0, while quality assurance and traceability status are unknown; the stated order lead time is one month in both peak and off-peak seasons.

Customization capabilityThe supplier explicitly reports minor customization and flexible customization capabilities and describes customized solutions and OEM/ODM production for valves. These statements provide direct evidence of customization availability, although they do not quantify the technical scope or manufacturing ownership of the service.