16/04/  · perform liquid penetrant testing (LPT) of the existing seating surface, machine-remove the existing alloy 21 hardfacing, perform LPT of the base metal (valve body) perform base metal repairs if needed, install new alloy 21 hardfacing, machine a new seating surface to OEM specifications, perform liquid penetrant testing of the new seating surface,

A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of

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

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

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

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

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.

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

This section covers necessary maintenance instructions for the manually operated stop check valves, including routine maintenance, trouble shooting, disassembly, inspection, reassembly and recommended spare parts.

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

Installation and Maintenance Manual MI -200 Check Rite Wafer Style Swing Check Valves Page: 3 Date: 10 August 2005 Ritepro Corporation A Subsidiary of Bray International, Inc Check Rite valves are normally installed with the Eyebolt pointing vertically upwards in a horizontal run of pipe, with the arrow on the Body pointing in the direction of

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

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.

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 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

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

Operation and Maintenance Manual. I. General Service by Product. A. Style 59, 159, and 259 Check Valves. 1. Bronze to bronze seating is not available in 

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

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

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 

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

This manual contains maintenance instructions together with pertinent illustrations for servicing corrosion resistant steel alloy, manually operated gate, globe, and swing check valves.

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

Find a Repair Manual, Owners Manual or Parts Manual by Searching the RepairManual.com Online Catalog | Let us know if you need help finding what you need? Email Us or call 1-800-426-4214 Monday through Friday 9-1 pm Eastern Standard Time. Please Note: Many of the manuals we carry are no longer available by the manufacturer.

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.

24/08/  · Check valves, pilot operated, Z2S 6, Size 6, Component series 6X, Maximum operating pressure 350 bar, Maximum flow 80 l/min, Data sheet, Operating instructions, Configurator / CAD, Spare parts and repair, Check valves, pilot operated, Z2S 10, Size 10, Component series 3X, Maximum operating pressure 315 bar, Maximum flow 120 l/min, Data

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

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.

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

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.

2" Through 12" Class 125, 150 & 250 Threaded and Flanged End Cast Iron, 3% NI Iron, and Ductile Iron Horizontal Swing Check Valves IOM Manual.