Gate Valve – LF Bolt Flanges with Viton® Bonnet Seal

lf-bolt-gate-valves

Gate Valve – LF Bolt Flanges with Viton® Bonnet Seal

£0£6,206

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TECHNICAL SPECS – CLICK HERE

LF Bolt Flanges with Viton® Bonnet Seal

Laminar flow, million cycle, 3 position, shielded gate, throttle, pendulum, 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:

FlangePort size mmConductance litres / sec
DN63LF63.5615
DN80LF76.21,071
DN100LF101.62,122
DN160LF152.47,140
DN200LF203.211,597
DN250LF25424,990
DN320LF304.843,268
DN400LF40074,905
DN500LF500.9132,197
DN630LF609.6228,856

___________________________________________
* – Expected cycle life is application dependant.
** – To prevent damage to the gate seal, gate valves must be baked out in the open position.


Product CodeManual / PneumaticFlangePort SizeABCDEFGPriceQuantityPDF & STP
GV-63LFB-V-MManualDN63LF63.5165.3122.2111.089.450.291.751.4 £1,207
GV-80LFB-V-MManual DN80LF 76.2 196.1 146.6 125.4 108.750.291.7 50.0 £1,397
GV-100LFB-V-MManual DN100LF 101.6 273.5 206.6 177.8 143.5 75.4 200.6 61.2 £1,693
GV-160LFB-V-MManual DN160LF 152.4 357.8 270.2 222.3 191.8 75.4 200.6 59.9 £1,972
GV-200LFB-V-MManual DN200LF 203.2 468.3 353.7 285.8 254.5 75.4 200.6 67.4 £2,750
GV-250LFB-V-MManual DN250LF 254.0 611.1 464.8 341.4 304.6 88.9 305.0 80.1 £4,973
GV-320LFB-V-MManual DN320LF 304.8 734.5 559.6 403.2 362.7 88.9 305.0 80.1 £6,206
GV-63LFB-V-P PneumaticDN63LF63.5165.3122.2111.089.4 50.0 134.451.4 £1,282
GV-80LFB-V-P Pneumatic DN80LF 76.2 196.1 146.6 125.4 108.7 50.0 134.4 50.0 £1,472
GV-100LFB-V-P Pneumatic DN100LF 101.6 273.5 206.6 177.8 143.5 75.4 176.7 61.2 £1,764
GV-160LFB-V-P Pneumatic DN160LF 152.4 357.8 270.2 222.3 191.8 75.4 176.7 59.9 £2,082
GV-200LFB-V-P Pneumatic DN200LF 203.2 468.3 353.7 285.8 254.5 75.4 176.7 67.4 £2,878
GV-250LFB-V-P Pneumatic DN250LF 254.0 611.1 464.8 341.4 304.6 120.3 240.6 80.1 £4,973
GV-320LFB-V-P Pneumatic DN320LF 304.8 734.5 559.6 403.2 362.7 120.3 240.6 80.1 £6,206
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-600LFB-V-P Pneumatic DN600LF 609.9 1357.1 1023.9 736.6 700.0 253.7 429.1 117.6 P.O.A
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