check valve maintenance manual

maintenance crew to perform the valve maintenance. Note that: Two (2) maintenance resources should be dispatched for work on residential Valve type (i.e., gate, butterfly, cone, check, air valve, blow-off) Function/use (in-line main, hydrant isolation, service line, bypass, division, pressure reducing, etc.) Valve Key (Manual) 3 11 4 14

Particular check valves perform additional services as follows: 1. Wafer check valves reduce the effect of water hammer (FM approved for such service). 2. Outside lever check valves may be fitted with a limit switch to detect flow. A. General Service By Product 1. Figure 59, 159 and 259 Check Valve For service in other than fire protection

OPERATION AND MAINTENANCE MANUAL. TECHNO CHECK VALVES All Techno check valve assemblies are treated with a locking solution during assembly and no loose.

25. When operating manual valves, gloves should be worn to minimize the risk of injury to the hands. 26. In situations where manual valves are difficult to operate due to substantial torque requirements, it is recommended that the valve be supplied with a gear or motor operator. 27. All valves should be mounted with the stem vertical and the

manual provides information for inspection and repairs of your DFT check valves should the need arise. No special tools are needed. Check Valve Assistance.

CHECK VALVE RECOMMENDED STORAGE AND HANDLING. Whenever possible, Kennedy Valve check valves should be stored inside. However, when this.

Below are the Clow Valve operation and maintenance manuals. If you have further questions regarding these please contact us. Operations & Maintenance Manual - Medallion Hydrant Operations & Maintenance Manual - Eddy Hydrant Operations & Maintenance Manual - Wet Barrel Hydrant Operations & Maintenance Manual - 2-12 Resilient Wedge

MAINTENANCE MANUAL. DUAL PLATE CHECK VALVE. DOC NO. CAM-TS-0042. REV. NO. 00. DATE. 15-02-2012. PAGE NO 1 OF 8. PREPARED BY : D.K. CHECKED BY : K.M.P.

Check valves require maintenance. It is impossible to visually inspect components from the outside. Consequently, the valves should be disassembled and inspected often (at least every 90 days). Any signs of pitting or washing on the body and components require replacement.

Installation,Operation and Maintenance Manual. Swing Check Valve. 0. Serial No. H-V013-E-14. Swing Check Valve. Contents. (1) Be sure to read the following 

CAST IRON GATE, GLOBE AND CHECK VALVE. INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS. INSTALLATION. 1). Thoroughly clean and prepare the piping 

3. Valve Does Not Open: Open top fl ow control valve (6) fully counterclockwise. Check pressure differential across disc; upstream pressure must be greater than downstream pressure. Verify that downstream shutoff valve is open and there is no line blockage. Lower pressure on air tank (pressure should be 20% of water system pressure). Pressur

Swing Check valve is self-operation non-return valve. Disc opens in the direction of flow and returns back on body seat when flow stops and seals with seat ring against back-pressure. Disc is secured in hinge; bracket & pin arrangement, which is self aligned type and moves inside body cavity. In larger sizes, hinge pin projects out of body to ac

RDOIM 12/12. Operation and Maintenance Manual. RD-Series™. Check Valve. Henry Pratt Company. 401 S. Highland Avenue. Aurora, IL 60506. Phone: (630) 844-4000.

Check valves will operate satisfactorily if not oriented more than 45° from the horizontal and with the flow upward. To help prevent check valve slam, the valve 

Maintenance Manual for wafer type spring check valve. Check Valve 1 operation, and maintenance for the check valves manufactured and supplied by Die Erste Industry Co., Ltd. The valves are identified by marking on the body or on a name plate or both. 1.1 Contact Information

Wafer Check Valve Installation, Operation and Maintenance Manual 1. Introduction. The design of this type of check valve has good structures and appearance. The discs open under the

Flomatic manuals for all our valves. Get instructions on installing, operating and maintaining Flomatic control valves, butterfly valves, check valves and 

Swing Check Valves (See Fig. 3) The self actuated swing check valves covered by this manual are of the bolted cover type, the clapper arm and the disc being suspended from the cover. Each swing check valve is supplied with fully trapped gasket between the cover and the valve body. Most check valves are allowed to have some leakage, according to

Velan IOMs offer comprehensive instructions on installing and maintaining your Velan valves. Also, for European customers, our Quick Reference Manuals offer basic installation instructions and product safety notices in your native language. You can find all of these documents and more on the Literature page of the Resources section.

Verify that the Check Valve Maintenance Kit being used is appropriate for the valve's size, the Seal material, the. Spring's crack pressure rating,