Coimbatore Paint Stores (Pipe)

Leader Horizontal Lift Check valves are designed with high sensitivity to pressure so that the valve closes immediately before significant fluid starts flowing backward. Fluid reversing backward causes damage to equipment like boilers or pumps. The valve is activated by the flowing material in the pipeline. The pressure of the fluid passing through the system opens the valve disc, while any reversal of flow will lose the valve disc. Closure is accomplished by the weight of the check mechanism, by back pressure. Disc guides enhance the proper alignment of the disc and seat configuration when the disc closes. Entirely automatic in action, depending upon differential pressure and velocity of flow within the line to perform their functions of opening and closing.

• Design Std.: DIN EN 12334.
• Bolted Cover, Piston type Disc design.
• Metal to Metal seating.
• Stainless Steel Body & Disc rings.
• Rigid & Sturdy design.
• Long service life as wear is minimal which makes it highly reliable.
• Valve is mechanically automatic and thus it does not need an actuator or valve operator.
• Suitable for only horizontal installation.
• The valve must be installed in the direction of the flow arrow.
• Flanged ends as per DIN EN 2533 PN-16 R.F.
• Valves are available with IBR Certification up to size 200mm.

Leader Wafer Check Valves are designed to prevent the reversal of flow in a piping system. Valve is activated by the flowing material in the pipeline. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Closure is accomplished by the weight of the check mechanism, by back pressure. The eccentrically mounted hinge pin in combination with the disc seat guarantees a positive shut-off of the returning media.

• Wafer Type Single Disc design.
• Renewable resilient (EPDM / Nitrile) seats ensure Leakage Class IV (Zero Leakage).
• Very low face-to-face dimensions hence space required for mounting is less than 10% of that conventional Swing Check valves.
• Short wafer body enables mounting the valve with shorter length fasteners of lesser number compared to flanged swing check valve. Approximately 50% saving in cost of fasteners.
• Tightening torque to be applied on the companion flange bolting is lower due to face sealing O-ring.
• Practically maintenance-free due to fewer number of parts and simple construction
• Renewable resilient seat ensure Zero leakage.
• Suitable for insertion between flanges as per BS-10 table
• Less wear and tear of seat surface due to O-Ring type body seat facing.

Leader Dual Plate Check Valves are automatic, quick-acting valve designed to prevent the reversal of flow in a piping system. The two valve discs, eccentrically embedded, have springs which force the valve to close in case no pressure is available. The pressure of the fluid passing through the system opens the valve discs, while any reversal of flow will close the valve discs. Closure is accomplished by the spring action and by back pressure.

• Design Standard: API 594.
• Retainer-less Construction ensures that they do not drill entirely into the valve body to allow the hinge-pin and the stop-pin to be fitted with a dual-plate check valve, The feature ensures high integrity & tamper-proof design, ensures no leakage from the body.
• Wafer-type design, to take lesser space than the Reflux / Swing Check Valve.
• Being light in weight has more rugged construction than the standard Swing Type Check Valve, which needs expensive foundation and special support.
• Less wear and tear of seat surface due to resilient integrally ‘molded body seating face.
• Stopper pin prevents the discs from coming into contact with each other and thus prevents disc damage. The stopper pin also prevents spring failure by ensuring that the discs don't travel beyond the full-open position.
• Low cracking pressure design (operable at low pressures).
• Independent spring design feature also available which gives less scrubbing of disc & independents movement of discs.
• Inherently non-slamming, no external devices/attachment required.
• Water hammering effect is minimized in this design, since the closing of valve does not depend upon any back pressure or flow.

Leader Ductile Reflux Valves are designed with high sensitivity to pressure so that the valve closes immediately before significant fluid starts flowing backward. Fluid reversing backward causes damage to equipment like boilers or pumps. The valve is activated by the flowing material in the pipeline. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Closure is accomplished by the weight of the check mechanism, by back pressure. Entirely automatic in action, depending upon differential pressure and velocity of flow within the line to perform their functions of opening and closing.

• Designed as per IS: 5312.
• Bolted Cover, Swing Disc design.
• Metal to Metal seating.
• Body castings made of superior Ductile Iron ASTM A395 grade to ensure additional strength.
• Gun Metal Body & Disc rings.
• Design Prohibits Galling or Scoring of Seating Surfaces.
• One-Piece Disc Construction Designed to Withstand Severe Service Conditions.
• Large Bolted-On Cover Provides Easy Access to Interior for Routine Maintenance.
• Rigid & Sturdy design.
• Long service life as wear is minimal which makes it highly reliable.
• Valve is mechanically automatic and thus it does not need an actuator or valve operator.
• A horizontal or vertical duct can be used, easy to install.

Leader forged steel check valve is to provide with single disc. With the force of medium, the disc will automatically open or close. When the media stops the flow, the disc will be closed under its own force. No manual intervention is involved in the whole process Check valve is mainly to prevent the media reverse flow and ensure a one-way flow of media channels only. It prevents accidents while a sudden loss of power in the pipeline medium such as the power equipment like pump damages, and the medium reserve flow against power source.

• Design Std.: BS 5352, BSEN ISO 15761.
• Pressure Temperature Rating as per ASME B16.34, BSEN ISO 15761.
• Sturdy design for high-pressure & temperature service.
• Bolted body-cover design, Valves with welded cover also available on request.
• Bolted body-cover joints provided with spiral-wound stainless steel gasket and graphite filler for protection against leaks.
• Piston/Disc is guided in the Cover assuring accurate return to seating to achieve leak tightness.
• Spring-loaded disc on check valves suitable for non-horizontal applications too available on request.
• Minimum differential pressure of 1 bar is required for operating the valve.
• Flanged ends as per ASME B16.5 Raised Face.
• Valves are available with IBR certification.

Leader Cast Steel Accessible Feed Check Valve
BM 050 Flanged End, Flanges as per BS:10 Table J, FF (Drilled), Without Inspection Branch Straight Inlet, Material Grade: ASTM A 216 93 Gr. WCB, Body Tested: 700 PSIG Renewable Seat, Seat Tested: 48.3 Bar Hyd., Trim: Seats : SS (ASTM A 276 Type 410

CAST STEEL SWING CHECK VALVE Bolted Cover Class - 300 - Flanges as per ASME B 16.5 CL-150 R.F. (Drilled) Serrated - Renewable Seat 13% Cr. Steel (ASTM A 276 TYPE 410) - 76 Bar Hyd. 55 Bar Hyd. BS : 1868/API 6D

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.Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem.

Disc Check Valve (TDCV) are compact spring loaded easy to install non return valves and are to be sandwiched in between a pair of flanges. The valve comes in SS 304 & 316 and metal to metal sealing. When flow takes place in the required direction the spring is compressed and permits flow of fluid.