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Type 11-SC3F Triple Function Air Release Valve

CTV Type 11-SC3F Single Chamber, Triple (3) Function air release valve (Single Chamber, Triple Function) - DN50-DN300 - PN10/PN16/PN25

CTV Type 11-SC3F Air Release Valve

The CTV Type 11-SC3F is a Single Chamber - Triple (3) Function Air Release Valve, available from DN50 to DN 300 in PN10, PN16 and PN25.

Type 11-SC3F Single Chamber-Triple Function air release valve provides 3 functions:
1. Large air release during filling of the pipeline.
2. Small air release under pressurized pipeline.
3. Large air intake during draining of the pipeline.


- Elegant design with simple mechanism, strong float to prevent cracking during sudden water hammer or quick closure.
- Aerokinetic mechanism to resist blow shut under higher air velocity even up to sonic velocity of air.
- No arms or levers to prevent vibrating, bending, direct closure of the float.
- Smooth cage outside of the float, keep float moving in specified guide rail.
- Bottom rubber buffer for collision prevention, and drain easy with proper holes around the cage during vacuum.
- Outside screen will be an option for safety and prevent insects or birds in.
- Fully fusion epoxy coated inside and outside of valve body for long term services.


Manufacturing standard meets BS EN 1074-4 (AWWA C512)
Flange drilling and dimension according BS EN 1092 (BS EN 558 and ANSI flange).


Service Fields: For water system, fire fighting, irrigation system.

Technical Data:

Size range: DN 50- DN300
Pressure ratings: PN10, PN16 and PN25
Working temperature: -10°-80°C.
Flow media: clean water



* Also available with Threaded Connection

* We also offer a version with Anti -Shock (Anti Waterhammer) Protection.

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