3Way Control Valves are used to combine two flows or to divert one flow into two outlets. They are designed to replace and perform the functions of two single ported control valves acting in opposite directions, in converging or diverging liquid flow service. They can be used to control the circulation of water, oil, sea water or other liquid in heating or cooling applications involving heat exchanger bypass control. They can also be used in blending systems and on-off selector systems.
DESIGN: | ASME B16-34 |
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BODY DESIGN: | Globe type with Tail piece to provide third port. |
VALVE SIZE: | 15 to 300 mm ( 1/2” to 12” ) |
RATING: | ANSI 150 to 600 Equivalents to BS, DIN, IS, JIS, etc. |
END CONNECTION: | Flanged – 15mm to 300mm ( 1/2” to 12” ) Screwed – 15mm to 50mm ( 1/2” to 2” ) |
BODY MATERIALS: | Carbon Steel, Stainless Steel, Monel, Alloy20, Hastelloy B/C etc. |
BONNET: | Standard upto 250°C Normalizing (Finned) between 250°C to 500°C Extended cold service – 20°C to – 200°C Extended Bellowseal. |
GLAND PACKING: | Grafoil / PTFE V Rings. |
TRIM DESIGNS: | Skirt Guided. Linear, Pressure Balance. |
TRIM MATERIALS: | Stainless Steel, Alloy20, Monel, Hastelloy B/C, Stellite Hard facing. |
CHARACTERISTICS: | Linear, On / Off. |
SEAT LEAKAGE: | As per FCI-70-2 (ANSI B 16.104) Class IV, V and VI ( STANDARD LEAKAGE RATES ) Metal to Soft Seating – Bubble tight (Zero Leakage) |
ACTUATOR TYPE: | Diaphragm, Cylinder or Electric. |
ACTUATOR ACTION: | Direct / Reverse Acting. Direct acting air failure “Close” Top Port. Reverse acting air failure “Opens” Top Port. |
DIAPHRAGM: | Nitrile / Neoprene |
SPRING RANGES: | 3 – 15 PSIG ( 0.2 – 1.0 Kg/cm² ) 6 – 30 PSIG ( 0.4 – 2.0 Kg/cm² ) |
AIR SUPPLY: | 20 – 35 PSIG (1.4 – 2.5 Kg/cm² ) |
AIR CONNECTION: | 1/ 4” or 1/ 2” NPT |
HANDWHEEL: | Top or Side Mounted Handwheel |
ACCESSORIES OPTIONAL: | Valve Positioner – Pneumatic , Electro Pneumatic, Smart Positioner, Airset, Solenoid Valve, Air Lock, Volume Booster, I/P Converter, Position Transmitter, Limit – Proximity Switches etc. |