check valve maintenance manual

Maintenance Manual of Bolted Bonnet Gate, Globe & Check Valves . 2 Operation Swing Check Valves automatically open by the velocity of medium and close by the gravitational force when the flow reverse or stops. Typical exploded view of Swing Check Valve is shown in Fig.3 & Fig.4. For actual construction details

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

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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.

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

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

B. Styles 59, 159, and 259 (Resilient Seated Check Valves) 1. Cold water services (125° F maximum, 32° F minimum) 2. Sizes 14" - 36" - 150 PSI maximum IV. Maintenance, Checking and Testing A. Swing check valves With the exception of issues caused by misuse and severe service of the valve, maintenance should be limited to the following:

A. Swing Check Valves 1. Orientation a. Swing check valves are always installed with the hinge pin parallel to the place of the horizon and above the pipe centerline. Incorrect installation may result in binding, high head loss, and/or hanging open. b. Style 59, 159 and 259 check valves must be installed with the flow horizontal or the flow up.

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

The valve identification plate is positioned, as in the picture, on the handwheel top side (in gate and globe valves) and on the cover top side (in check and piston/ball and swing). The valve's class (rating), the minimum and maximum working temperatures and the maximum working pressure must be check before installation. 3.2) Referring on the valve

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 

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

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 

SWING CHECK VALVE STANDARD INTEGRAL SEAT & OPTIONAL REMOVABLE SEAT 2" FP - 6" FP 150# - 1500# 8" FP - 12" FP 150# - 900# API 6D and B16.34 2" FP - 4" FP 5000# DRILLING PRODUCTION VALVE (DPV) DISTR IB UTED VA LVE S Installation, Operation and Maintenance Manual WHEATLEY® Installation, Operation and Maintenance Manual IOM-WHE-500SCV

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

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.

Carefully unpack the valve and check for identification plates or tags etc. It is recommended to install Gate and Globe valves with stem vertical up in longitudinal pipe lines. For other orientations of stem, refer to L&T valves. The performance of the valve will be better if the flow is smooth.

So is a valve clearance check at 1000kms a waste of $250 and just wait till 20,000kms; or is it a worthy investment to have it done at 1000kms? Adventure Rider. dhardesthard. 1,408 83. Post Jun 19, 2 2014-06-19T02:06. I would follow the manual and have the first service done at 1000 KMS. Is the $250 charge for the first service or

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

manufacturing the valve you need. INSTRUCTIONS AND MAINTENANCE MANUAL - SERIE - R. R. R e v. 0. 3 / 2. 6-05-20. 20. CHECK VALVE - SERIE R 

Make sure the valve is not under pressure before starting any maintenance. Disassembly** (Refer to assembly drawing on next page.) 1. Lay valve down with the downstream side of the valve upward. 2. Remove stop pin retainers (6) and hinge pin retainers (7). 3. Remove stop pin (3), being careful with the short hooked spring legs on valves 6

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, 

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.

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

Check the inner cavity, especially the seal surface to inspect if the seal surface is free from dirt and damage. screw on the arm axle of the swing check valve. verify that the valve meets the service requirements. upwards. 2 Valve opens or closes automatically due to flow pressure of the medium. 5.2 INSTALLATION, or inclined line.

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

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

The easiest way to do this is to use a towel or wire brush to clean the valve casing. Keeping it clean will prevent buildup on the valve stem and other moving parts, maximizing the life of your valve. Routine Inspections, Your valves should be checked and inspected on a consistent basis.

These check valves operate according to the principle of a free-swinging check valve. The disc is supported at the valve lever and in the body.

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