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Home > Products > VALVES > Control valves and Fire fighting system > MEIJI Brand wet alarm check valve

MEIJI Brand wet alarm check valve

Min. Order: 1 Piece/Pieces

Product Description

Product Description
Alarm Check Valve (Wet Type)
The alarm check valve is an important part of the automatic sprinkler system. It is a one-way valve that only allow water to flow into the system side. When a fire occurs, the closed fire sprinkler head is automatically opened after being heated, the water pressure in the system side reduce, the alarm check valve opens automatically and the hydraulic bell is driven under the specified pressure and flow to make a sound alarm. The pressure switch interlocks and starts the fire pump to supply water to the pipeline and sends an alarm signal to the control center.
Alarm Check Valve (Wet Type) Basic Technical Info
Model
ZSFZ80
ZSFZ100
ZSFZ125
ZSFZ150
ZSFZ200
ZSFZ250
Inside nominal diameter(mm)
80
100
125
150
200
250
Rated working pressure(Mpa)
1.6Mpa
Sealed test(Mpa)
3.2Mpa
Strength test(Mpa)
6.4Mpa
Alarm flow(L/min)
15<Q<60
Retard alarm time(s)
5 - 90
Friction Resistance (Mpa)
≤0.035
''Height of alarm valve(mm0
250
260
265
270
370
430
Outside diameter of Flange(mm)
220
220
250
285
340
405
Inside diameter of flange screw(mm)
160
180
210
240
295
355
Diameter of screw hole(mm)
8
12
Quantity of screw hole
8
22
26
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Product packaging

Packed in wooden cases or pallet, suitable for delivery by sea or air.
Delivery is within 40 days after order confirmed in general. It is according to order quantity.
Company Profile
Anhui Sunval International Co., Ltd. is a professional supplier of VALVES and piping systems. Our company focuses on iron valves, Steel valves, copper alloy valves, pipes and related accessories etc. Sunval offers design, purchase, production, quality control and export as well as after service for industrial valves. Sunval has been selling to Asia, Europe, America and Middle East.
Sunval has an experienced team of merchandisers familiar with industrial valves. We will always contribute to customer requirement to supply quality products with best service, and hope to maintain long term relationship with customers to make mutual benefit.

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Product Categories : VALVES > Control valves and Fire fighting system

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