SWING CHECK VALVES - BFE

1 STANDARD CONFIGURATIONSBASICSWING CHECK VALVE DESCRIPTIONS wing CHECK VALVES , like all CHECK VALVES , are used to prevent back flow in the line. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. The SWING CHECK valve functions by allowing flow forces to move the closure element, it is a hinged clapper which swings or rotates around a supporting disk swings away from the valve-seat to allow flow in the forward direction, and returns to the valve-seat when upstream flow is stopped, to prevent CHECK design is one of the most common and best CHECK valve for general-purpose use.

2 These VALVES produce the lowest pressure drop, when compared with other CHECK VALVES of the same size, the internal contours and shapes allow them to fully open at low fluid velocities and create a smooth flow path through the design is simple and easy to maintain and can be used for either horizontal or vertical (fluid flowing upward) pipe layouts. Because of their design, SWING checks are not fast-closing VALVES due to the travel distance from full open to SYMBOLS tandard gasket design for bolted-bonnet VALVES is spiral wound type up to class ASME 1500. Ring Joint gaskets are standard for ASME 2500 and above.

3 SPW/RJ are available on request for all pressure classes as location of the disc and SWING arm assembly designed in order to minimize pressure drop and suitable for vertical installation as standard: the valve will return to the closed position should ow become interrupted or reversed even with vertical installation ( ow must be in an up- ow direction). SWING CHECK nut positively secured to prevent disassembly during service by permanent cold deformation of the closure member. No additional cotter pin or other small parts are used as locking CV hinge pin design eliminates additional leakage VALVES are provided with anges integral with the body forgings.

4 Full die forged structure for all pressure containing ow capacity port sizes and disc retraction to minimize ow velocities and maximize valve service construction of body-bonnet connections is bolted bonnet type. Welded bonnet is avaliable as alternative of disc and hinge assembly to generate a closing moment to provide adequate closure and sealing at low cracking pressure surfaces are machined to the tightest tolerances and lowest roughness to ensure trouble free shut off and INDEX OF SWING CHECK VALVESAPPLICABLE STANDARDSDESIGNAPI 602 - ISO 15761 - ASME INSPECTION & TESTINGAPI 598 MARKINGMSS SP-25 RATINGASME EMISSIONAPI 624 - ISO 15848E-5 BASIC CONFIGURATIONTHREADED AND SOCKET WELD ENDSE-6 BASIC CONFIGURATIONASME INTEGRAL FLANGED ENDSE-7 AVAILABLE OPTIONS FOR SWING CHECK VALVES WELDED BONNET

5 SWING CHECK VALVES WELDED BONNET SWING CHECK VALVES PAGEDESCRIPTIONSYME-3 BASIC CONFIGURATIONTHREADED AND SOCKET WELD ENDSE-4 BASIC CONFIGURATIONASME INTEGRAL FLANGED ENDSBOLTED BONNET SWING CHECK VALVESBOLTED BONNET SWING CHECK VALVESSWING CHECK VALVESSTANDARD CONFIGURATIONSBASICSWING CHECK VALVE DESCRIPTIONS wing CHECK VALVES , like all CHECK VALVES , are used to prevent back flow in the line. The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve. The SWING CHECK valve functions by allowing flow forces to move the closure element, it is a hinged clapper which swings or rotates around a supporting disk swings away from the valve-seat to allow flow in the forward direction, and returns to the valve-seat when upstream flow is stopped, to prevent CHECK design is one of the most common and best CHECK valve for general-purpose use.

6 These VALVES produce the lowest pressure drop, when compared with other CHECK VALVES of the same size, the internal contours and shapes allow them to fully open at low fluid velocities and create a smooth flow path through the design is simple and easy to maintain and can be used for either horizontal or vertical (fluid flowing upward) pipe layouts. Because of their design, SWING checks are not fast-closing VALVES due to the travel distance from full open to SYMBOLS tandard gasket design for bolted-bonnet VALVES is spiral wound type up to class ASME 1500. Ring Joint gaskets are standard for ASME 2500 and above.

7 SPW/RJ are available on request for all pressure classes as location of the disc and SWING arm assembly designed in order to minimize pressure drop and suitable for vertical installation as standard: the valve will return to the closed position should ow become interrupted or reversed even with vertical installation ( ow must be in an up- ow direction). SWING CHECK nut positively secured to prevent disassembly during service by permanent cold deformation of the closure member. No additional cotter pin or other small parts are used as locking CV hinge pin design eliminates additional leakage VALVES are provided with anges integral with the body forgings.

8 Full die forged structure for all pressure containing ow capacity port sizes and disc retraction to minimize ow velocities and maximize valve service construction of body-bonnet connections is bolted bonnet type. Welded bonnet is avaliable as alternative of disc and hinge assembly to generate a closing moment to provide adequate closure and sealing at low cracking pressure surfaces are machined to the tightest tolerances and lowest roughness to ensure trouble free shut off and INDEX OF SWING CHECK VALVESAPPLICABLE STANDARDSDESIGNAPI 602 - ISO 15761 - ASME INSPECTION & TESTINGAPI 598 MARKINGMSS SP-25 RATINGASME EMISSIONAPI 624 - ISO 15848E-5 BASIC CONFIGURATIONTHREADED AND SOCKET WELD ENDSE-6 BASIC CONFIGURATIONASME INTEGRAL FLANGED ENDSE-7 AVAILABLE OPTIONS FOR SWING CHECK VALVES WELDED BONNET

9 SWING CHECK VALVES WELDED BONNET SWING CHECK VALVES PAGEDESCRIPTIONSYME-3 BASIC CONFIGURATIONTHREADED AND SOCKET WELD ENDSE-4 BASIC CONFIGURATIONASME INTEGRAL FLANGED ENDSBOLTED BONNET SWING CHECK VALVESBOLTED BONNET SWING CHECK VALVESE-2E-3 SWING CHECK VALVESBOLTED BONNET SWING CHECK VALVESBASIC CONFIGURATIONTHREADED AND SOCKET WELD ENDSWORKINGPRESSURE RATINGSIZESTANDARDDESIGN TYPEABHWEIGHTFIGURENPSDN mminmminmminkglbASME8001/2 603 STANDARD BORE3/4 6041 6051-1/2 6072 50S11807. 0 608 ASME 15001/2 6033/4 6041 6051-1/2 40S11807. 0 6072 608 ASME8001/4 601 FULL BORE3/8 6021/2 6033/4 6041 6051-1/4 6061-1/2 40S11807.

10 0 6072 608 ASME 15001/2 6033/4 6041 6051-1/4 32S11807. 0 6061-1/2 6072 608 ASME 25001/2 6033/4 6041 6051-1/2 6072 608 PRODUCT FEATURES: Internal Pin TYPE S1 SPIRAL WOUND GASKET BODY-BONNET CONNECTION DESIGN TYPE S2 RING JOINTBODY-BONNET CONNECTION H BAFLOWH BAFLOWBFE reserves the right to change designs, dimensions or specifications without notice. E-4 SWING CHECK VALVESBOLTED BONNET SWING CHECK VALVESBASIC CONFIGURATIONASME INTEGRAL FLANGED ENDSWORKINGPRESSURE RATINGSIZESTANDARDDESIGN TYPEA-RFA-RJBHWEIGHTFIGURENPSDN mminmminmminmminkglbASME1501/2 BORE3/4 20S1117.