check valve maintenance manual

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 

Installation, Operation and Maintenance Manual. SERIES 35 - CHECK VALVE KF Series 35 Check Valves should not be used in vertical down flow installations 

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

2.4 The valve after the long term storage, should be cleaned and tested prior to installation make. Page 3. WEIDOULI VALVES CO.,LTD. Check Valves Manual. NO.20, 

Installation, Operation and Maintenance Manual for Gate, Globe,. Bellows and Check Valves. IOM rev.3.0 Maintenance Manual. OMB Valves 

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

4. If equipped with a manual override, use it to operate the valve to the fully open position. 5. Check the stem stop viewports to verify valve position. (Refer to Open and Closed Viewports on page 6.) 6. Turn the open stop screw counter-clockwise until it stops and tighten the locknut. CAUTION: Once the stop makes contact with

M&H Valve Company Large Diameter (14”-36”) Check Valve Operation and Maintenance Manual I. General Service by Product A. Style 59, 159, and 259 Check Valves 1. Bronze to

UNITED 7700 Swing Check Valves may be installed in horizontal pipe-work and vertical pipe-work if the flow is in an upwards direction.

5.4 MAINTENANCE 5.4.1 The installed valve shall be checked, maintained and repaired regularly as follows:- a. Inspect for wear and tear of the sealing surface. If there is any damage, repair or replace it. c. Check if connected bolts are secure. shall be done once the valve is reassembled. Keep detailed records for reference. 6.

Installation, Operation, and Maintenance Manual The flanged swing check valve (Figure 1& Figure 2) features a hinged stainless steel clapper with an 

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.

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.

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

This manual has been prepared to assist you with the installation, operation and maintenance of the valve to the maximum efficiency. For ease of reference, it 

Gate Valves: Used in the fully open or fully closed position for on-off service. Globe Valves: Used for throttling control as well as on-off service. Self-Actuated Check Valves: Used to prevent backflow (fluid flow reversal). With proper care and regular maintenance, users can expect long life and excellent performance

Please check pictures for more details. Warranty: If our product does not work properly for you and you want to exchange another one or get a refund, please confirm with our customer service first and list the product detailed problems. Dodge Vehicle Repair Manuals and Literature, Valves & Parts for Chrysler 300, Valves & Parts for Chrysler

www.ladishvalves.com. Page 1 of 35. INSTALLATION, OPERATION, MAINTENANCE. MANUAL. MANUALLY OPERATED. GATE, GLOBE, SWING CHECK AND. LIFT CHECK VALVES 

Manual for wafer type spring check valve This manual is provided to ensure proper installation, operation, and maintenance for the check valves.

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

This manual has been prepared to provide the end user with general guidelines in the installation, operation and routine maintenance of VITAS valves. The instructions contained within this manual apply to all VITAS bolted bonnet & pressure seal valves unless otherwise stated.

These instructions provide installation, operation and maintenance information for Cla-Val 580 & 581. Series Silent Check Valves. Safety Messages. All safety 

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

Dismantling • Visual inspection and dimensional check • Cleaning – sand blasting etc. if necessary • Crack detection – spot check • Inspection of valve guard for further use. • Rework of sealing lips of valve seat. Lapping or machining depending on condition. For a long seat lifetime only machine as little as possible.

Maintenance Manual of Dual Plate Check Valves . 2 Exploded Contents Page No. L&T Valves 3 Dual Plate Check Valves 4 View 5,6 Delivery Condition 7 Check valves should be installed a minimum of 5 pipe diameters downstream of any piping component (elbow, Tee, Valve, etc.) to allow the flow to stabilize.

LIFT CHECK & SWING CHECK VALVE. OPERATION/ MAINTENANCE MANUAL 2.1 These check valves can be installed in a pipeline to avoid backward flow. 2.2 MEDIUM.

Flanged or Wafer Style Valve. Gaskets may be oiled, greased, or left dry as preferred. Gaskets are not supplied with Valves. MAINTENANCE Maintenance of a Techno check Valve is seldom required. Repair or replacement of internal assembly is straight forward, requiring no special skills or tools. Following are a few precautions. 1.

M&H VALVE RESILIENT SWING CHECK MAINTENANCE MANUAL. I. SELECTION. Check valves are for the prevention of backflow. Particular check valves perform 

Installation, Operation and Maintenance Manual for Gate, Globe, Bellows and Check Valves IOM rev.3.0 R.E.A. 157030 (BG) - Reg. Imp. 00339600165 - Cap. Soc. Euro 2.000.000, 00 - Partita IVA 00339600165 - EXPORT M/122821 Eli.Fin Group Swing check valves can be fitted in either vertical or horizontal lines, as can piston check or ball

1.0 Introduction to Check Rite Wafer Type Swing Check Valves. Modern piping applications demand better features, performance and economy in