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Signal Gate Valve

Body: CI/DI/WCB

Disc: DI+EPDM/NBR

Gasket: NBR/EPDM

Cover: CI/DI/WCB

Stem: SS

O-Ring: NBR/EPDM

Thrust bearing: NBR/EPDM

Gland: CI/DI/WCB

Dust proof gasket: NBR/EPDM

Hand wheel: DI

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OVERVIEW

Signal gate valves and signal butterfly valves are used in automatic spraying water pipeline in fire protection system to monitor the water supply pipeline and indicate the valve’s opening at a long distance. Rising stem gate valves and opening indicator gate valves are often used in fire protection system, and if the installation position is high to the ground, rising stem gate valves is used and can show the valve’s opening clearly while if the installation position is low, opening indicator gate valves is used.

Features

1.The seal is desigend with dustproof ring plus three “O”-seal ring,reliable sealing,on-line replaceable.
2.Both gate and aluminum bronze bearing are in inaid design good self lubrication ,high strength and can have the aluminum bronze bearing replaced withoutneed to replace the gate integrally,aftere a long time use.
3.Rubber wrapped gate anti-corrosion,good tightness.
4.Advanced surface treatment,coated with non-toxic epoxy resign static powder,anti-corrosion,pollution-free,can be used drinking water pipeline.
5.The body is designed without gate slot,the smooth passage will not get impurities filling up ,more applicable for sewage working condition.
6.The integral seal works raliably.For the high pressure seal,leaving zero leakage under1.5 times nominal pressure and ,for the low pressure one ,under 0.02Mpa.

Parameters
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L 178 190 203 229 254 267 292 330 356 381 406 432 457 508
H (min)(full close) 313 332 372 424 497 562 680 837 948 1010 1220 1280 1480 1665
H (max)(full open) 355 375 415 476 540 600 720 875 990 1050 1245 1310 1560 1750

Technology Standard

1.Nominal pressure: 1.0-2.5MPa
2.Working temp.:0-120℃
3.Flanged end: GB/T17241.6 GB9113
4.Nominal diameter: 50-400mm
5.Service: water, oils, gas etc.
6.Inspection and test: GB 13927 API 598
 

1.Nominal voltage: 24V,DC/AC                                                    
2.Maximum working voltage: 220V                                                      
3.Rated current: 5A                                                
4.Contact resistance: ≤1MΩ                                                      
5.Insulation resistance: ≥5MΩ(DC500V)                                                       
6.Working environment temperature     :_10~85℃(no ice)                                                
7.Work environment humidity: Below 85%RH     

Application

1.Water supply
2. sewage
3.construction
4.oil
5.chemical
6.food
7.pharmaceutical
8.power
9.shipping
10.energy

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