Wet-Pipe Sprinkler System Equipment

Wet Alarm Check Valve Assemblies

Complete alarm valve assemblies offered with flanged or grooved connections. Select by nominal size, connection and trim requirements; factory references remain secondary for production matching.

DN100–DN2504–10 inFlanged / Grooved1.6 MPa / 16 barComplete Alarm Trim

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Flange drilling, groove profile and trim arrangement are confirmed against the approved drawing, sample or order schedule before production.

Real product configurations

Flanged and grooved assembly views

Both photographs show DN150 complete assemblies. The visible physical GUANYA / 冠亚 product markings are retained; CHUANWEI FIRE identifies the website and export-sales presentation.

DN150 Flanged Complete Assembly1 / 2

Technical overview

Confirmed construction and operating data

Critical product data is presented in HTML for clear international sourcing. No foreign approval, installation orientation or water-flow direction is claimed on this page.

Series specifications

Product type: Wet Alarm Check Valve Assembly
Available sizes: DN100 / 4 in to DN250 / 10 in
Connection options: Flanged or grooved
Maximum working pressure: 1.6 MPa / 16 bar / approx. 232 psi
Valve body: Ductile iron QT450-10
Clapper: Ductile iron
Valve seat: Stainless steel
Stem & internal metal parts: Stainless steel
Seals: EPDM
Coating: Internal and external epoxy coating
Packaging: Wooden case or pallet

Complete supply scope

Alarm trim supplied with the main valve

The standard complete assembly includes the items below. Customer-specified accessory makes or trim arrangements can be reviewed before quotation.

01Main alarm check valve

02Pressure gauges

03Retard chamber

04Water motor alarm

05Pressure switch

06Drain or test valve

07Trim piping & fittings

08Agreed accessories

Available models

Seven configurations for quotation

International size and connection are the primary selection fields. ZSFZ codes are retained only as factory references. Reference height may vary with the approved trim arrangement.

International configuration	Nominal size	Maximum pressure	Reference height	Design	Factory reference
Flanged Wet Alarm Check Valve Assembly	DN100 / 4 in	1.6 MPa	250 mm	New design	ZSFZ100
Flanged Wet Alarm Check Valve Assembly	DN150 / 6 in	1.6 MPa	275 mm	New design	ZSFZ150
Flanged Wet Alarm Check Valve Assembly	DN200 / 8 in	1.6 MPa	325 mm	New design	ZSFZ200
Flanged Wet Alarm Check Valve Assembly	DN250 / 10 in	1.6 MPa	380 mm	Conventional design	ZSFZ250
Grooved Wet Alarm Check Valve Assembly	DN100 / 4 in	1.6 MPa	250 mm	New design	ZSFZ100(G)
Grooved Wet Alarm Check Valve Assembly	DN150 / 6 in	1.6 MPa	280 mm	New design	ZSFZ150(G)
Grooved Wet Alarm Check Valve Assembly	DN200 / 8 in	1.6 MPa	330 mm	Conventional design	ZSFZ200(G)

For quotation, specify DN size, flanged or grooved connection, required flange drilling or groove profile, trim and accessory requirements, quantity and destination country.

OEM / ODM capability

Configured to the approved drawing or sample

Manufacturing and assembly options are confirmed against the buyer's technical schedule. Connection-standard names describe available machining patterns and do not imply third-party product approval.

Flange machiningGB, ANSI, DIN or BS dimensional patterns, subject to the approved drawing and pressure requirement.

Grooved connectionGroove dimensions produced to an approved customer sample or drawing.

Trim configurationCustomer-specified accessories, piping arrangement and agreed component configuration.

Brand presentationCustom nameplate, logo and epoxy coating color.

Drawing or sample productionValve connection and trim details reviewed before manufacturing.

Export packingWooden-case or pallet packing prepared according to the order.

Send your wet alarm valve schedule

Include size, connection, flange or groove requirement, trim configuration, quantity and destination country.

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