This type of 3 way 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. 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.
TECHNICAL SPECIFICATIONS
| DESIGN | ASME B16-34 |
| VALVE SIZE | 15 to 350 mm ( 1/2” to 14” ) |
| RATING | ANSI 150 to 600 Equivalents to BS, DIN, IS, JIS, etc. |
| FACE TO FACE | ISA S.75.03 up to 600# |
| END CONNECTION | Flanged – 15mm to 350mm ( 1/2” to 14” ) Screwed – 15mm to 50mm ( 1/2” to 2” ) |
| BODY MATERIALS | Carbon Steel, Chrome-moly Steel, Stainless Steel,Monel, Alloy20, Hastelloy B/C, Duplex Stainless Steel, Aluminum Bronze, PP, PTFE etc. |
| BONNET | Standard upto 250°C Normalizing (Finned) between 250°C to 500°C Extended cold service – 20°C to – 100°C Cryogenic – 100ºC to – 250ºC Bellows seals. |
| GLAND PACKING | Grafoil / PTFE V Rings, Low Emission |
| TRIM DESIGNS | Skirt Guided. Linear, Pressure Balance. |
| TRIM MATERIALS | Stainless Steel, Alloy20, Monel, Duplex Stainless Steel,13% Chrome Steel Hastelloy B/C, Stellite (Alloy 6 ) |
| CHARACTERISTICS | Equal Percentage, Linear and Quick Opening. |
| SEAT LEAKAGE | As per ANSI/FCI-70-2 Class III. IV, V and VI (STANDARD LEAKAGE RATES) Metal to Metal Seating Class IV, Less than 0.01% of rated Cv. Metal to Soft Seating – Bubble tight (Zero Leakage) |
| ACTUATOR TYPE | Diaphragm, Piston or Electric. |
| ACTUATOR ACTION | Direct / Reverse Acting. |
| 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 |
| ACCESSORIES | Valve Positioner – Pneumatic , Electro Pneumatic, Smart Positioner. Instruments- Airset, Solenoid Valve, Air Lock, Volume Booster, Position Transmitter, Limit– Proximity Switches etc. Features- Top or Side Mounted handwheel, Limit Stops Removable Blind Head, Steam Jacketing, etc. |
DESIGN FEATURES
- High flow Valve capacity and rangeability.
- Heavy – Duty stem.
- Wide range of interchangeable trim sizes.
- Bellow seals available for positive stem sealing.
- Comprehensively designed and tested to ensure its optimum performance for the tough process parameters specified.
- Wide selection of actuator.
QUALITY AND PERFORMANCE GUARANTEE
- Produced with Quality Systems accredited to ISO 9001 : 2008 by Bureau Veritas and “CE” marked in accordance to Pressure Equipments Directive and Regulations by Lloyd’s Register.
- Full material certification available for all major component Parts.
- Full guarantee on design and Performance.
- All testing performed to the requirements of ASME B16.34.