775.359.4442 Toll Free: 800.551.4422 sales@highvac.com Flange Hardware/Installation Kits Home / Products / Flange Hardware/Installation Kits Flange Hardware / Installation Kit Valve Installation Kits KF Valve Installation Kits ISO-F Valve Installation Kits ISO-K Valve Installation Kits CF-F HomeAbout UsService / SupportRequest QuoteNewsContact UsSitemap © 2021 HVA LLC 12880 Moya Blvd Reno NV 89506-2611 Web Application Development by Pulse

775.359.4442 Toll Free: 800.551.4422 sales@highvac.com FAQ’s & Manuals Home / FAQ’s & Manuals If you can not find the question and/or answer you are looking for consult our valve manuals found on the bottom of this page. For further assistance contact us at sales@highvac.com. Q: What causes a valve to leak? A: There could be a number of reasons why a valve might leak. The most common is a dirty or damaged gate O-ring. The second most common reason could be that the Viton or copper bonnet gasket is also dirty or damaged. Another cause is a leak in the bellows which can be detected with a leak detector on the actuator. Q: What happens to the gate when power is lost? Q: What happens to the gate when air pressure is lost? Q: What causes the gate on a manual valve to open or close on its own? Q: How does a gate valve stay closed? Q: How often should preventative maintenance be performed on a valve? Q: What preventative maintenance needs to be done on a valve? Q: Where is the model and serial number found on a gate valve? Q: What are the opening and closing speeds of various sized gate valves? Q: How much air pressure is needed to operate a pneumatic gate valve? Q: What may cause a valve gate to get stuck? Q: What orientation can a valve be mounted? Q: What length of bolts should be used in the flanges? Manuals 11000 Series 11000 Series Manual Valve Maintenance Manual 11000 Series Pneumatic Valve Maintenance Manual 81000 Series 81000 Series Valve Maintenance Manual HomeAbout UsService / SupportRequest QuoteNewsContact UsSitemap © 2021 HVA LLC 12880 Moya Blvd Reno NV 89506-2611 Web Application Development by Pulse