Swing Check Valve

Check Valve PN16

PN16 Cast Iron Swing Check Valve, Lever & Weight Model: 4M-SWC

Feature

• Pressure Ratings PN16
• Model: 4M-SWC are manufactured and tested per requirements AWWA C508 standard for swing-check valves for waterworks service
• Drilling flange: ANSI B16.1 Class 125 / ANSI B16.1 Class 250
• Corrosion Protection: Standard epoxy painting system with overall coating thickness 250m according to AWWA C550
• All fasteners are Stainless Steel type 304

Swing-Check-Valve-Manufacturer Swing Check Valve Manufacturer

Optional Devices

Closure Control Devices code as follows:

  • AC Air Cushion Side Mounted Cylinder (Lever & Weight)
  • OC Oil Controlled Side Mounted Cylinder

Closure Control Devices
Air Cushion Side Mounted Cylinder(AC)

The Cast Iron Swing check valve Lever & Weight Model: 4M-SWC with Air Cushion Side Mounted Cylinder (AC) Device is designed to handle higher flow rates, pressures and withstand shock.

Closure-Control-Devices Closure Control Devices Air Cushion Side Mounted Cylinder(AC)

Application: For Free Open, Fast Close applications, the air-cushioned check valve utilizes a totally enclosed cushion cylinder externally mounted to the side of the main valve body. A heavy outside lever positively clamped to an extra-large diameter pivot shaft, forces the disc to close immediately upon pump shut down and before reverse flow takes place. The weighted lever drives the piston into the cushion chamber, compressing the 30 trapped air and creating a cushion during valve closure.

Closure Control Devices
Oil Controlled, Side Mounted Cylinder(OC)

The Cast Iron Swing check valve Lever & Weight Model: 4M-SWC with Oil Controlled, side mounted Cylinder (OC) Device is designed to handle higher flow rates, pressures and withstand shock.

side-mounted-Cylinder side mounted Cylinder

Application: For Free Open, Slow Close applications, The Cast Iron Swing check valve Lever & Weight Model: 4M-SWC are available with an Oil Controlled, Side Mounted Cylinder closure control device. The totally enclosed oil cylinder is protected from the elements. Three-stage closure on valves minimizes damaging water hammer.

Valve Assembly Drawing Layout

Valve-Assembly-Drawing-Layout Valve Assembly Drawing Layout

Valve Assembly Parts Identification

A01 BODY
A02 COVER
A03 COVER SEAL
A04 COVER BOLTS
A05 BODY SEAT RING
A06 DISC SEAT
A07 DISC STOP
A08 DISC PIN
A09 DISC ARM
A10 DISC
A11 PIVOT SHAFT STRAIGHT BUSHING
A12 PIVOT SHAFT FLANGED BUSHING (ALL EXCEPT 42”)
A12 SPACER (42” ONLY)
A13 PIVOT SHAFT
A14 DISC ARM SET SCREW
A15 PIVOT SHAFT COVER
A16 PIVOT SHAFT COVER BOLT
A17 PIVOT SHAFT SEAL
A18 PIVOT SHAFT COVER SEAL
A31 SEAT RETAINING RING
A32 SEAT RETAINING SCREW
A33 PIVOT SHAFT KEY
A37 PIVOT SHAFT SEAL RETAINER
A39 DISC STOP LOCKNUT
A40 BODY SEAT RETAINING SET SCREW
A41 DISC PIN RETAINER
A42 COVER PIPE PLUG
A43 BODY SEAT SEAL
A53 PIVOT SLEEVE BEARING
A57 DISC ARM SLEEVE
A60 PIVOT SHAFT COLLAR
A61 PIVOT SHAFT SET SCREW
A65 COVER NUT
A66 DATA PLATE
A67 DRIVE SCREW
A90 BODY PIPE PLUG
A91 DISC RING SEAL
A92 PLUG
A93 PLUG SEAL
A95 PLUG RETAINING SCREW
A96 COVER BOLT WASHER
A97 PIVOT SHAFT COVER WASHER
A98 COVER WASHER
A99 DISC STOP WASHER

Valve Assembly with Oil Controlled,
Side Mounted Cylinder(OC)

Valve-Assembly-with-Oil-Controlled-Side-Mounted-CyclinderOC Valve Assembly with Oil Controlled, Side Mounted Cyclinder(OC)

Valve Assembly with Oil Controlled,
Side Mounted Cylinder(OC) Parts Identification

B01 NIPPLE
B02 TEE
B03 NIPPLE
B04 PIPE PLUE
B05 TEE
B06 REDUCING BUSHING (SEE NOTE 3)
B07 CROSS
B08 NIPPLE
B09 HOSE
B10 TEE
B11 NIPPLE
B12 HOSE
B13 CROSS
B14 HOSE
B15 TIMING VALVE SCREW
B16 TIMING VALVE NUT
B17 HOSE
B18 NIPPLE
B19 COUNTERWEIGHT LEVER ARM
B20 PNEUMATIC CYLINDER
B21 CYLINDER BRACKET MOUNTING BOLT
B22 UNION
B23 PIPE PLUG
B24 CYLINDER BRACKET
B25 CYLINDER BRACKET MOUNTING BOLT
B26 CYLINDER BRACKET MOUNTING NUT
B27 CYLINDER LEVER
B28 COUNTERWEIGHT ARM
B29 COUNTERWEIGHT
B30 FLOW CONTROL VALVE
B31 ELBOW
B32 NIPPLE
B33 TIMING VALVE CAM DIAL
B34 CUSHION LEVER KEY
B35 CUSHION LEVER SET SCREW
B36 COUNTERWEIGHT SET SCREW
B37 DRIVE SCREW
B38 ELBOW
B39 CAM SET SCREW
B40 OIL RESERVOIR TANK
B41 ELBOW
B42 NIPPLE
B43 HOSE
B44 PIPE PLUG (SEE NOTE 2)
B45 TIMING VALVE
B46 TIMING VALVE MOUNTING BRACKET
B47 CAM
B49 LEVER ARM KEY (NOT SHOWN)
B55 LEVER ARM BOLT/SET SCREW
B56 LEVER ARM NUT
B57 WASHER
B58 AIR BREATHER
B59 THREADED ROD (SEE NOTE 1)
B60 HEX NUT (SEE NOTE 1)
B61 NIPPLE
B62 WASHER
B63 WASHER
B64 WASHER

NOTES
1. B59 & B60 ARE REPLACED WITH A SINGLE BRACKET (NOT SHOWN) WHEN VALVE IS USEDIN VERTICAL ORIENTATION
2. VALVE IS SHIPPED WITH PIPE PLUG IN PLACE OF BREATHER ON RESERVOIR, BREATHERSHIPPED LOOSE
3. ADDITIONAL REDUCER ON 14-20” IS USED TO CONNECT OIL RESERVOIR TO 1” NPT CROSS

Valve Assembly with Air Cushion Side Mounted Cylinder(AC)

Valve Assembly with Air Cushion Side Mounted Cyclinder(AC) Valve Assembly with Air Cushion Side Mounted Cyclinder(AC)

Valve Assembly with Air Cushion Side Mounted Cylinder(AC)
Parts Identification

B19 COUNTERWEIGHT LEVER ARM
B20 PNEUMATIC CYLINDER
B21 CYLINDER BRACKET MOUNTING BOLT
B24 CYLINDER BRACKET
B25 EYE BRACKET MOUNTING BOLT
B26 EYE BRACKET MOUNTING NUT
B27 CUSHION LEVER
B28 COUNTERWEIGHT ARM
B29 COUNTERWEIGHT
B30 FLOW CONTROL VALVE
B34 CUSHION LEVER KEY
B35 CUSHION LEVER SET SCREW
B36 COUNTERWEIGHT SET SCREW
B46 REDUCING BUSHING
B47 PIPE NIPPLE
B48 PIPE ELBOW
B49 LEVER ARM KEY
B55 LEVER ARM SET SCREW(16-66”)/BOLT(2-3”, 14”)
B56 LEVER ARM NUT
B57 COUNTERWEIGHT LEVER ARM WASHER
B58 AIR BREATHER
B59 CYLINDER BRACKET WASHER
B60 EYE BRACKET WASHER
B61 LINK
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