This type of Valve with its classic globe body shape, which reflects its name, uses the variable area generated between the plug and seat to control fluid flow. It is very versatile offering reduced trim options as well as a variety of special trims for severe high pressure drop applications. This style of valve is easily adapted for use on cryogenic temperatures and for high temperature duties. This valve is preferred for tight shut – off, positioning accuracy, high rangeability and simplified maintenance, satisfy the majority of control valve applications throughout the process and power industries in control of Air, Steam, Water, Gas, Chemicals etc.
TECHNICAL SPECIFICATIONS
| DESIGN | ASME B16-34 |
| VALVE SIZE | 15 to 450 mm ( 1/2” to 18” ) |
| RATING | ANSI 150 to 2500 or Equivalents to BS, DIN, etc. |
| FACE TO FACE | ISA S.75.03 up to 600# ISA S.75.16 900# and above |
| END CONNECTION | Flanged, Butt Weld,Screwed, Socket weld. |
| 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 | Top Guided Contoured, Splined Micro Flow, V-Ported (Balanced / Unbalanced), Low Noise ( LN1, LN2, LN3, LN4 ) |
| 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 , ElectroPneumatic, 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 capacity and rangeability.
- Large variety of Trim design.
- Top entry for ease of inspection and maintenance.
- Tight closing for reliable control even when changes in pressure / temperature are sudden and extreme.
- Bolts located outside of the piping stress area to eliminate gasket crush problems.
- Wide selection of actuators to meet most system requirement.
- Rigorously proven on-site performance.
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.