
Flow control valve diaphragm type is ideal for limiting the flow to a pre-determined maximum (via maintaining a continuous pressure differential across an orifice).
When the pressure differential is less than the set-point, the flow valve opens, allowing flow to meet pre-determined demand. At the desired maximum set-point, the pilot reacts to small changes in sensing pressure and controls the main valve position by modulating the pressure.
When the pressure drop across the orifice exceeds the set-point, the control valve closes slightly, limiting the flow to the pre-set maximum. Adjusting the pilot setting permits the maximum flow to be changed in the field above or below the original point.
Features
- Accurately limits flow to a pre-set maximum
- Easily adjustable flow limit
- Paddle-style orifice plate included
- Optional orifice plate housing
Typical Application
- Isolation valve
- Storage Tank
- Standard paddle style orifice plate
- Install between downstream flanges and connect pilot sensing to downstream tap in pipeline
- Completed in field by others
Technical Specification
- Valve Body Type : Globe Type/ Angle Type
- Body : Ductile Iron ASTM A 536
- Bonnet : Ductile Iron ASTM A 536
- Available Sizes : 50mm – 1000mm
- Stem : Stainless Steel 316
- Seat Ring : Stinless steel 316
- Diaphragm : EPDM
- Strainer : Brass
- Flow Limiting Pilot : Brass/Stainless Steel
- Stabilizer : Brass/Satinless Steel
- Orifiece Plate : Stainless Steel
- Tubing & Fittings : Copper, Brass,Stainless Steel
- Pressure rating : PN10,PN16,PN25
- Coating : Non Toxic Epoxy