Flow Control Valve

Flow & Pressure Control Valves are diaphragm actuated, electrical solenoid valve / electric actuator operated automatic control valves, which uses water / line fluid for actuation. This valve has single moving assembly. A flexible, non-wicking, nylone fabric reinforced Buna-N elastomer diaphragm shall be integral with this assembly to form a sealed chamber, operating free of drag or wear. The diaphragm shall not be used as sealing surface.

Valve assembly shall a stainless steel stem, which is fully guided by top and bottom to avoid any deflection.

When the valve is in closed position, sealing at the stainless steel seat shall be accomplished by the contact between securely retained quad ring and smooth seat surface to give bubble tight shut-off as per leakage class VI, as per ANSI FC-70-2. The seat shall be removable type.

The internal valve components shall be removable and repairable without removing valve body from the line. There are no packing glands and pistons are not permitted, hence minimum maintenance.

The valve body and cover shall be of DUCTILE IRON or CAST STEEL and fused epoxy coated inside and outside.

These valves are used as self regulating type when power supply is not available or operated through Electrical solenoid valve or Electric actuator when SCADA compatibility is required.

flow control valve photo

Size – 50 MM (2″) to 600 MM (24″).

Approved In – Gujarat Water Supply & Sewerage Board (GWSSB).

Body & Cover – Ductile Iron to ASTM A-536 or GGC40 as per DIN 1639 Fused epoxy coated. Cast Steel to ASTM A 216 Gr. WCB – Fused Epoxy coated.

Seal & Stem – Stainless Steel AISI 316.

Internal – Stainless Steel AISI 304 / CF8.

Spring – Stainless Steel.

Elastomer – Buna-N.

End Connection – As per ANSI B16.5, Class 150 & Class 300.

Body Hydro Test – As per ASME B16.34 / 16.42.

Flange to Flange distance – As per requirement. ANSI B16.1.

Seat Leakage Test – Class-VI as per ANSI FC-70.2.

flow control valve drawing