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Model 722G

LOCXEND® CONTROL CHEK® Valves
Sizes: 2"–12" (50 – 600mm)

Model 722G Control Check Valves by Mueller

Pressure / Temperature - Non-Shock
Model Sizes Rating
CWP
722G 2"-12" 640psi @ 100°F
565psi @ 300°F

Max. temp. can be limited by seat or spring material. Consult Factory

Typical Service

The LOCXEND® CONTROL CHEK® valve is designed for installation in pump discharge grooved end piping systems where it performs triple duty. It acts as a spring loaded silent check valve, a shutoff valve, and a balancing valve. Used in conjunction with the Mueller Steam Specialty Suction Diffuser, it constitutes a compact and effective complete pump protection and isolation package.

Operation

Features

Material

  722G
Body and Yoke Ductile Iron ASTM A395 (60-40-18) or A536
Disc Aluminum Bronze ASTM B142, C950
Stem 316 S.S.
Seat Guide Bronze ASTM B584 (81-3-7-9)
Disc-Guide* Cast Iron ASTM A126-B
Seat* Bronze
Gland Flange Cast Iron ASTM A126-B
Packing Compressed Fiber
Spring 302 Stainless Steel
Stem Guide Ductile Iron ASTM A536
O-Rings EPDM

*Separate disc-guide and seat used on 6" and larger.
Flanged Models 721 and 722 are available for Class 125 and Class 300 service.

Dimensions and Weights

Size Dimensions Weight
    A B C
(NPT)
 
in. mm in. mm in. mm in. mm lbs. kgs
721
2 50 9-3⁄8 238 9-5⁄8 244 1⁄2 15 23 10
2-1⁄2 60 10-1⁄4 260 9-5⁄8 244 1⁄2 15 24 11
3 80 11-1⁄4 285 10-1⁄8 257 1⁄2 15 33 15
4 100 15-5⁄8 397 12-5⁄8 321 1⁄2 15 84 38
6 150 19-5⁄8 492 17-1⁄2 445 3⁄4 20 156 70
8 200 23-5⁄8 600 18 457 3⁄4 20 300 136
10 250 28 711 21-3⁄4 552 1 25 392 178
12 300 31-5⁄8 803 25 635 1 25 496 225

Dimensions for Model 722G Control Check Valves by Mueller