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High Quality Wet Alarm Check Valve for Fire Fighting

Name: High Quality Wet Alarm Check Valve for Fire Fighting
Brand: Shenzhen Winan Industrial Development Co., Ltd.
SKU: 713501882

Guangdong, ChinaShenzhen Winan Industrial Development Co., Ltd.

US$146.00

5 Pieces

Product profile

Customization

Available

Nominal Diameter

Dn80 Dn100, Dn150, Dn200

Rated Working Pressure

1.2MPa or 1.6MPa

Model NO.

ZSFZ

Sprinkler System Type

Wet Type

Matched Sprinkler

Closed

Transport Package

Crate

Trademark

GAN

Origin

Shenzhen, China

Key features

Unidirectional Water Flow: Allows water to flow in only one direction to prevent backflow.

Automatic Alarm Activation: Drives matching parts to alarm at prescribed pressure and flow.

Customizable Nominal Diameter: Available in Dn80, Dn100, Dn150, and Dn200 sizes.

Dual Pressure Ratings: Rated working pressure options of 1.2MPa or 1.6MPa.

Complete System Integration: Constitutes sprinkler system with water flow inductor and pressure switch.

Delayer for Accuracy: Cylindrical tank buffers pressure fluctuations to prevent false alarms.

Electrical Signal Conversion: Pressure switch converts water pressure to electrical signal for fire pump.

Customized Design Available: We make available customized design for our clients.

Company profile

Shenzhen Winan Industrial Development Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2014-11-11Nearest Port: Yantian, Shenzhen, Shekou, ShenzhenAverage Response Time: ≤9.26hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryWinan is identified as a private manufacturer/factory in Shenzhen, China, specializing in fire-fighting equipment such as foam systems, sprinkler systems, fire monitors, hydrants, water-mist systems, and valves. The supplier reports ISO 9001:2000 and CCCF certifications, more than 25 years of industry experience, national patents, and membership in the Chinese Fire Protection Association. Export activity is documented since 2014, with exports representing 31%–40% of total sales and self-operated import/export rights. Production data specifically states capacity of 500 foam bladder tanks annually. However, the available information does not establish current contract status, inventory or overseas service capabilities, detailed financial credibility, customization services, or customer case references. The audit record is from 2024–2025, with an evaluation result recorded as 0, but the meaning of that result is not specified.

Supplier typeThe supplier is explicitly identified as a private manufacturer/factory based in Shenzhen, Guangdong, China. Its stated business focuses on fire-protection equipment and related industrial and security products, consistent with a specialized manufacturing supplier.

CertificationsThe supplier states that it passed ISO 9001:2000 quality management certification in 2001 and CCCF product quality certification in 2004; its products are also described as Chinese high-quality brand-name products. A TUV Rheinland audit record covers March 7, 2024 to March 6, 2025, although the recorded audit result is not interpretable from the provided data.

R&D capabilityThe supplier reports national patents obtained after decades of innovation and has operated in the fire-protection industry for over 25 years. However, recent new-product launches and current R&D outputs are unknown, so the evidence supports historical innovation activity but not a complete assessment of current innovation capability.

Production capacityThe supplier is explicitly classified as a manufacturer/factory, reports annual productivity of 500 foam bladder tanks, and states more than 25 years of industry experience. This supports established manufacturing capability, although capacity data for its other product categories is not provided.

Product Q&A

Q:What is the working principle of the ZSFZ series wet alarm valve?

The valve allows unidirectional water flow and opens when pressure difference occurs, triggering a delayer and pressure switch to alarm and start fire pumps.

Q:What nominal diameters are available for this valve?

We offer customized nominal diameters including Dn80, Dn100, Dn150, and Dn200.

Q:What are the rated working pressure options?

The valve is available with rated working pressures of 1.2MPa or 1.6MPa.

Q:How does the delayer prevent false alarms?

The delayer is a cylindrical tank that stores water to buffer time, preventing the water motor alarm from misinterpreting momentary pressure fluctuations.

Q:What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.