Gate Valve – LF Bolt Flanges with Viton® Bonnet Seal
£0–£5,918
TECHNICAL SPECS – CLICK HERE
LF Bolt Flanges with Viton® Bonnet Seal
Laminar flow, million cycle, 3 position, shielded gate, throttle, rectangular & aluminium gate valves are also available, please contact sales office for further details and pricing.
Features:
• 304 stainless steel vacuum brazed body.
• AM350 welded bellows.
• Electropolished inside and out.
• Manual or electropneumatic operation.
• Acme threads on manual actuator.
• 24VDC air control solenoid as standard on pneumatically actuated valves. (80psi max)
• Magnetic reed switch position indicator on pneumatic valves as standard.
• Optional microswitch position indicator.
• Minimal vibration during cycling.
• 100,000 cycles before service*.
• Viton bonnet seal, 1 x 10-9 Torr vacuum rating.
• Helium leak rate <2 x 10-9 std.cc/sec.
• Roughing ports available to special order.
Bakeout Specifications:
Max. Temperature**
Viton® bonnet seal / Viton® gate seal : 150°C
Actuator : 60°C
Conductance:
Flange | Port size mm | Conductance litres / sec |
DN63LF | 63.5 | 615 |
DN80LF | 76.2 | 1,071 |
DN100LF | 101.6 | 2,122 |
DN160LF | 152.4 | 7,140 |
DN200LF | 203.2 | 11,597 |
DN250LF | 254 | 24,990 |
DN320LF | 304.8 | 43,268 |
DN400LF | 400 | 74,905 |
DN500LF | 500.9 | 132,197 |
DN630LF | 609.6 | 228,856 |
___________________________________________
* – Expected cycle life is application dependant.
** – To prevent damage to the gate seal, gate valves must be baked out in the open position.
Product Code | Manual / Pneumatic | Flange | Port Size | A | B | C | D | E | F | G | Price | Quantity | PDF & STP | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GV-63LFB-V-M | Manual | DN63LF | 63.5 | 165.3 | 122.2 | 111.0 | 89.4 | 50.2 | 91.7 | 51.4 | £1,424 | |||
GV-80LFB-V-M | Manual | DN80LF | 76.2 | 196.1 | 146.6 | 125.4 | 108.7 | 50.2 | 91.7 | 50.0 | £1,639 | |||
GV-100LFB-V-M | Manual | DN100LF | 101.6 | 273.5 | 206.6 | 177.8 | 143.5 | 75.4 | 200.6 | 61.2 | £2,003 | |||
GV-160LFB-V-M | Manual | DN160LF | 152.4 | 357.8 | 270.2 | 222.3 | 191.8 | 75.4 | 200.6 | 59.9 | £2,347 | |||
GV-200LFB-V-M | Manual | DN200LF | 203.2 | 468.3 | 353.7 | 285.8 | 254.5 | 75.4 | 200.6 | 67.4 | £3,332 | |||
GV-250LFB-V-M | Manual | DN250LF | 254.0 | 611.1 | 464.8 | 341.4 | 304.6 | 88.9 | 305.0 | 80.1 | £5,918 | |||
GV-320LFB-V-M | Manual | DN320LF | 304.8 | 734.5 | 559.6 | 403.2 | 362.7 | 88.9 | 305.0 | 80.1 | P.O.A | |||
GV-63LFB-V-P | Pneumatic | DN63LF | 63.5 | 165.3 | 122.2 | 111.0 | 89.4 | 50.0 | 134.4 | 51.4 | £1,509 | |||
GV-80LFB-V-P | Pneumatic | DN80LF | 76.2 | 196.1 | 146.6 | 125.4 | 108.7 | 50.0 | 134.4 | 50.0 | £1,754 | |||
GV-100LFB-V-P | Pneumatic | DN100LF | 101.6 | 273.5 | 206.6 | 177.8 | 143.5 | 75.4 | 176.7 | 61.2 | £2,083 | |||
GV-160LFB-V-P | Pneumatic | DN160LF | 152.4 | 357.8 | 270.2 | 222.3 | 191.8 | 75.4 | 176.7 | 59.9 | £2,318 | |||
GV-200LFB-V-P | Pneumatic | DN200LF | 203.2 | 468.3 | 353.7 | 285.8 | 254.5 | 75.4 | 176.7 | 67.4 | £3,476 | |||
GV-250LFB-V-P | Pneumatic | DN250LF | 254.0 | 611.1 | 464.8 | 341.4 | 304.6 | 120.3 | 240.6 | 80.1 | £5,918 | |||
GV-320LFB-V-P | Pneumatic | DN320LF | 304.8 | 734.5 | 559.6 | 403.2 | 362.7 | 120.3 | 240.6 | 80.1 | P.O.A | |||
GV-400LFB-V-P | Pneumatic | DN400LF | 400.0 | 959.9 | 731.3 | 504.2 | 470.7 | 176.5 | 267.0 | 97.8 | P.O.A | |||
GV-500LFB-V-P | Pneumatic | DN500LF | 500.9 | 1210.4 | 918.3 | 644.5 | 603.8 | 177.5 | 353.2 | 121.2 | P.O.A | |||
GV-630LFB-V-P | Pneumatic | DN630LF | 609.9 | 1357.1 | 1023.9 | 736.6 | 700.0 | 253.7 | 429.1 | 117.6 | P.O.A |