Air Valve
Single Chamber, Double Orifice, Triple Function Air Valve
Sigma Flow's
Single Chamber, Double Orifice, Triple Function Air Valve
Salient Features:
- Most compact design and very few parts
- Completely tamper-proof
- Much better performance than double chamber kinetic air valve
- Performs triple action i.e; aeration of pipeline when emptying, ventilation of pipeline when filling and venting the pipeline under full operating pressure
- Bend can be given on request
Technical Features:
- Valve body is of Ductile Iron
- Rating : PN 1.6
- End connection : Flanged end
- Epoxy coated surface protection
- All inside metal parts are made of stainless steel
- Test Pressure: Body -1.5 X PN, Seat -1.1 X PN
Sigma Flow's
Double Chamber, Double Orifice, Triple Function Air Valve
Salient Features:
- Compact design and tamper-proof
- Much better performance than double chamber kinetic air valve
- Performs triple action i.e; aeration of pipeline when emptying, ventilation of pipeline when filling and venting the pipeline under full operating pressure
Technical Features:
- Valve body is of Ductile Iron
- Rating : PN 1.6
- End connection : Flanged end
- Epoxy coated surface protection
- All inside metal parts are made of stainless steel
- Test Pressure: Body -1.5 X PN, Seat -1.1 X PN
Double Chamber, Double Orifice, Triple Function Air Valve
Kinetic Air valve
Sigma Flow's
Kinetic Air valve, double chamber as per IS 14845 : 2000
Salient Features:
- High rate of air discharge and ventilation
- Can be made tamper-proof
- Effective sealing and long life
Technical Features:
- Valve body is of Ductile Iron
- Rating : PN 1.0 / PN 1.6
- Floats can be of timber core with vulcanite coating / Stainless steel
- Coating : Black Japan for CI / Epoxy for DI
- Test Pressure: Body -1.5 X PN, Seat -1.1 X PN
Sigma Flow's
Sewage Air Valve
Salient Features:
- Single Chamber
- Suitable for application at sewage main transmission lines. irrigation systems in presence of solids/debris in suspension, treatment plants
Technical Features:
- Working Pressure: PN10/ PN16
- All inner metal parts made of stainless steel.
- Sewage Air valve 80 NB – 200 NB
- Epoxy coating thickness 250 microns to give maximum corrosion resistance
- Flange drilling as per IS:1538
- Test Pressure: Body -1.5 X PN, Seat -1.1 X PN
Double Chamber, Double Orifice, Triple Function Air Valve
Air Cushion Valve
Sigma Flow's
Air cushion valve
Salient Features:
- Discharge huge quantities of air at system start-up.
- Provides pipeline vacuum protection.
- Prevent water column separation.
- Resilient seal ensure drop tight sealing.
Technical Features:
- Main body is of Mild steel and Top housing is of cast iron
- Flanged end to IS 1538
- Rating : PN 1.0 / PN 1.6
- Test pressure : Body 1.5 x PN, Seat 1.1 x PN
Gate valves are classified as either rising-stem or non-rising-stem valves.
In the non-rising-stem valve, the stem is threaded into the gate. As the handwheel on the stem is rotated, the gate travels up or down the stem on the threads while the stem remains vertically stationary.
Valves with rising stems are used when it is important to know by immediate inspection whether the valve is open or closed or when the threads exposed to the fluid could become damaged by fluid contamination. In this valve, the stem rises out of the valve bonnet when the valve is opened.
Air Valve
General
Specifications
1
Air Valve
Material
Specifications
2
Air Valve
Other
Specifications
3
Have any question? Please contact us Sigma Connect
Air Valves
Butterfly Valves
Gate Valves
Non-Return Valves
