Flow Control
Flow control valves are used where fluids in a system must be limited to a set maximum flow rate. Typical applications include balancing of chill water system branches to ensure that the heat exchangers in the various branches receive the the desired flow rate of chilled water. This is important to ensure proper temperature control in rooms of buildings which determines the level of comfort for occupants.
Flow Limiting Valve
Flow Limiting Valve
The function of the flow limiting valve is to allow only a set constant flow rate through the valve, preventing excessive flow through the pipeline regardless of changing line pressure. The pilot responds to the differential pressure across an orifice plate downstream of the valve and it causes the valve to close more when the flow rate exceeds the set value.
Product Specifications available for Flow Limiting Valve
Types of flow limiting
valve available:
Pilot operated
Materials
available:
Ductile iron
Stainless steel 304, 316
Sizes
available:
DN50 to DN1000
Max operating
pressure available:
Up to 16 bar
Max operating temperature available: 1°C to 65 °C
Connections available:
Flanges PN10,
PN16, PN25
Suitable
media types:
Clean water
Pressure Independent
Control Valve (PICV)
Pressure Independent Control Valve (PICV)
The pressure independent control valve maintains a constant set flow rate on the downstream of the valve in the presence of changing differential pressure conditions. An internal diaphragm regulates and maintains the differential pressure across the valve hence maintaining the set flow rate.
Product Specifications available for Pressure Independent Control Valve
Materials available:
DZR brass
​Grey cast iron
Sizes available: DN15 to DN250
Max operating
pressure available:
Up to 25 bar
Max operating temperature available: -20°C to 120 °C
Flow rate adjustable range available:
0.02 to 370 m3/hr
Connections available:
Flanges PN10, PN16
Threaded BSP
Suitable media types:
Water
Glycol solutions