Product/Service

Pressure-Vacuum Relief Valve

Source: A.H. Lundberg, Inc.
The Lundberg Pressure-Vacuum Relief Valve is provided as a safety valve to accommodate upset conditions in pressurized steam systems
Safety valve for pressurized steam systems

The Lundberg Pressure-Vacuum Relief Valve is provided as a safety valve to accommodate upset conditions in pressurized steam systems. This type of relief valve is completely mechanical in operation and fitted with suitable adjusting counterweights, and is designed to operate under preset conditions within the range of 0 to 7 inches of water column vacuum or 0 to 7 psig pressure. The pressure setting is completely independent of the vacuum setting.

Six Sizes Available

The Lundberg Pressure-Vacuum Relief Valve is sized to suit the installation. The proper operation of this device is dependent upon mounting on a flat, square, and true companion flange. Valve size is an indication of connecting flange of ANSI class 150 standard drilling. Normally supplied for horizontal mounting, the valve can be supplied on special order for either right or left side vertical connection. Valves can also be supplied for pressure only or vacuum only. For kraft mill service, the valve body and disc is constructed of T-304L stainless steel. For sulfite mill service, the unit is of T-316L stainless steel body and disc. Weights are of mild steel. The disc seats are of EPDM. Other materials available upon request.

A.H. Lundberg, Inc., 2803 Hewitt Ave., PO. Box 1506, Everett, WA 98206. Tel: 425-258-4617; Fax: 425-259-1037.