DeZURIK PUMP CHECK VALVES

Flexible Control With DeZURIK Water hammer. Reverse Flow. Pump Backspin. Any number of conditions can cause expensive damage to pumps and piping systems. DeZURIK has been in the business of providing solutions to your pump system regulation needs for over 75 years. We can provide custom-designed and engineered systems for those precise flow regulation problems, or the powered Pump Check Valve that offers significant advantages over a gravity or spring-operated valve. For information on DeZURIK’s vast array of Pump Check Systems and capabilities utilizing either Eccentric Plug Valve’s or AWWA...

Manual-Automatic Selector Valve Automatic Opening Cycle 1. ith a decrease in system pressure or liquid level, W contacts in the Remote Pressure Switch (PS-R) close, energizing the Motor Starter Coil (MSC), which closes the contacts of the Motor Starter (MS). 2. he Pump Motor starts and pumping pressure T closes the Local Pressure Switch contacts (PS-L), energizing the Solenoid Pilot Valve (SPV). The Solenoid Pilot Valve transmits pressure to the switch valve and shifts its spool. 3. ydraulic fluid or air enters the actuator and the H valve begins opening at the preset speed. 4. s the pump output...

Typical System Wiring Diagram Remote Pressure Switch MSC Pump Motor LS-Limit Switch (Position Indicating Switch) Control Voltage SPV Local Pressure Switch Customer Supplied Components Seat End DeZURIKPump Check Valve MSC = Motor Starter Coil PS-R = Remote Pressure Switch or Level Control DeZURIK Eccentric Suction Valve PS-L = Local Pressure Switch Components Supplied by DeZURIK Clean Water Service Note: Consult Bulletin 12.00-1D for installation instructions SPV = Solenoid Pilot Valve SPV-R Solenoid Pilot Valve for Optional = Rapid Close Accessories LS = Limit Switch — Opens at Preset Point Manual...

Power Actuated Pump Check Valves Precisely Regulate Flow The DeZURIK Pump Check Valve is a power actuated valve that provides precise flow regulation on all types of pumping installations. By controlling valve opening and closing speed so that operation does not cause flow surges in either direction, the Pump Check Valve reduces water hammer and its deleterious effects. The DeZURIK Pump Check Valve also prevents reverse flow and pump back spin. Automatic and Manual Control Options On hydraulic cylinders, epoxy coated wetted parts prevent corrosion. The multiple lip rod seal with adjustable gland...

Eccentric Plug Valves Ideally Suited for Pump Check Service • he modified linear characteristic of the DeZURIK T eccentric makes it ideal for pump check installations. The modified linear characteristic allows more gradual flow rate changes for a given amount of valve travel as the valve nears the closed position. This slower rate of flow change reduces flow surges and the possibility of water hammer. • he DeZURIK eccentric action T principle moves the plug out of the flow area. The clean interior design and straightthrough flow path result in low head loss and reduced pumping costs. • DeZURIK...

Special Configurations In addition to the basic Pump Check Valve configurations described previously, we can provide special designs tailored to your installation requirements. Please furnish the following information: If you would like specific information or recommendations on a Pump Check Valve tailored to your requirements, contact DeZUIRK or your local representative. In either case, you will receive prompt answers to your specific questions. 2. Service conditions including flowing media and temperature 1. Valve size or maximum flow and available pressure drop 3. Description of system 4....

Ordering To order DeZURIK Pump Check Valves, specify the appropriate valve and actuator order code and add the order code for the pump check components required. Pump check components are available for either pneumatic or hydraulic actuators. Both pneumatic and hydraulic systems are also available with an optional rapid closing feature. Supply line filters for pneumatic actuators and strainers for hydraulic actuators must be ordered for use with Pump Check Valves. Filters or strainers are unmounted and should be ordered as a separate item. For PEC Eccentric Plug Valve Materials of Construction,...

The following accessories are mounted and piped. 1. Solenoid Valve Features manual override to control cylinder supply. NEMA 4, 7 and 9. Standard solenoid coil voltage is 120/60/1 power. Specify other characteristics as follows if required: 240/60/1; 110/50/1; 440/50/1; 480/60/1; 220/50/1. 2. Manual-Automatic Selector Valve Provides bypass of solenoid valve to allow manual valve operation. 3. Position Indicating Switch Provides remote indication of valve open and closed position. Limit switch opens at preset point. NEMA 4, 7 and 9. Switches are 2 SPDT or 1 DpDT, specify switch configuration....

Sales and Service For information about our worldwide locations, approvals, certifications and local representative: Web Site: www.dezurik.com E-Mail: [email protected] DeZURIK WO I WILLAMETTE 250 Riverside Ave. N. Sartell, Minnesota 56377 • Phone: 320-259-2000 • Fax: 320-259-2227 DeZURIK, Inc. reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction and dimensional data, as described in this bulletin, are provided for your information only and should not be relied upon unless confirmed in writing by DeZURIK,...