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Gate Valves |
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Sealing Valves will seal against 15 psi differential atmospheric pressure in either direction. Orientation Valves can be installed in either a vertical or horizontal orientation. Leak Tightness Each valve is tested using a helium mass spectrometer leak detector calibrated for a minimum sensitivity of 2x10-10 Std. Atm. cc/sec of He. Internal welds are inspected for pits, cracks, and other irregularities which may cause virtual leaks. Maintenance Carriage and gate mechanism may be removed through the bonnet flange for seal replacement, cleaning or retrofitting without removing the valve body from the system. Manual Actuation Actuators are constructed with non-rising Acme threads for smooth and quick operation. Visual open position indicators are standard on all manual valves. |
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