check valve maintenance manual

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

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

MAINTENANCE MANUAL. Drawing C-1239 Figures 221-D, 221-DS, 221-U and 221-US. Single-Increasing Lever & Weight Swing Check Valves.

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.

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.

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

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.

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

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.

Below are the Kennedy Valve operation and maintenance manuals. If you have further questions regarding these please contact us. O&M Manual Rotating Disc. Kennedy Guardian O&M

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, 

1) Check the flow arrow on the body before inserting the Check Rite valve between the flanges. 2) Pipeline flanges must be parallel and have the same pressure class rating as the valve. 3)

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.

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

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