Project Description

A swing check valve is check valve in which the disc, the movable part to block the flow, A swing check valve consists of a flap or disc which hangs down in the flow path. With flow in the forwards direction, the pressure of the fluid forces the disc to swing upwards, allowing flow through the valve. Reverse flow will cause the disc to shut against the seat and stop the fluid going back down the pipe.

In the absence of flow, the weight of the flap is responsible for the closure of the valve, Distortion, wear and noisy operation of the valve can be avoided by selecting the size of the valve on the basis of flow conditions. Swing Check valves are best suited for moderate velocity operations. Swing check valves are normally designed for horizontal installations. It can be installed in vertical direction with flow in upward under the disc Addcon check valves are heavy duty, bolted cover, renewable seat ring, and body mounted disc swing type, The designs of these valves are completely unique, Addcon valves have variety of Industrial Check Valve to suit various industrial applications.

Addcon Swing Check valves are adequate for all service media. Addcon Valves can also be supplied with counter weights and dash pot arrangement depending upon the condition and request

Material Specification

  SERIAL NO   QTY   DESCRIPTION   MATERIAL
1 1+1+1 BODY + COVER + LEVER ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M  / ASTM A 216 GR. WCB
2 1 SEAT RING 13% CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L
3 1 DISC 13 % CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L
4 1 HING PIN AISI S.S 410 / S.S 304 / S.S 316 / S.S 304 L / S.S 316 L
5 4/8/12 COVER / STUD ASTM A 193 Gr. B7 /  B8 / B 8M
6 8/16/24 COVER  / NUT ASTM A 194 Gr. 2H /  8 /  8M
7  1 GASKET CAF/SPIRAL WOUND METALLIC SS304/SS 316 FILLED WITH GRAPHITE
8  1 DISC NUT AISI S.S 410 / S.S 304 / S.S 316 / S.S 304 L / S.S 316 L

Salient Features

  • To Ensure Long And Trouble Free Valve Performance, Seating Surface Are Accurately Machined, Precisely Aligned, And Perfectly Lapped
  • Removable, Seal Welded Seat Ring Or Integral Seat (Cast SS Only) Available Seat Ring Screwed In To The Body Are Replaceable Type. Seal
  • Welded Type Seat Ring & Integral Seat Cab Also Be Offered On Special Request.
  • Stellited Seat Ring & Disc Also Be Offered On Special Request
  • All The Disc Have Double Lock Nut Or Cotter Pin Fixed
  • In Built Wear Life For Long Duration In ServiceRequest

Design and Testing International Standard

End Connection FLANG END,BUTWELD
Flange Std ASME B 16.5 / CLASS 150 , 300 , 600 BS 10 TABLE D,E,F,H / DIN / IS 6392 DIN STANDARD  / JIS STANDARD / IS STANDARD
BUTWELD STD ASME B 16.25
SOCKET WELD ASME B 16.11
Face to Face ASME B 16.10
Design Std BS 1868 / ASME B 16.34 / API 6D
 Testing Std BS EN ISO 12266 – I ( BS 6755 – I) / API 598 / ISO 5208
Product Range ½” to 24″ (15 NB to 550 NB)