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Valves / Check / 21D-F-SS-R

CLASS 250 Flange Style Silent Check Valve with Bulbous Cast Iron Body and Stainless Steel Trim

Data sheet
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DATA SHEET

21D-F-SS-R
11/13/2025 12:45 AM

Product Category 21D-F-SS-R
Product Line Cast Iron & Bronze Flanged Check Valves (10D, 11D, 12D, 13D, 20D, 21D)
Part Description CLASS 250 Flange Style Silent Check Valve with Bulbous Cast Iron Body and Stainless Steel Trim

Dimensions

Face to Face 9.5
Dia. of Bolt Circle 10.63
Dia. of Flange 12.50
No. of Studs 24
Dia. of Studs 0.75
Length of Studs 5.00
Thickness of Flange 1.44
Weight (lbs.) 125

General

Pressure Rating up to 500 PSI
Temperature Range -30°F to 250°F (-34°C to 121°C)
Standard Soft Goods Buna-N O-Rings
Cartridge Type Check
Connection Type ANSI B16.5 Flange
Connection Size 6"
Body Material Cast Iron, ASTM A126, CL. B

Options

Optional Soft Goods Viton® O-Rings, EPDM O-Rings

cpvmfg.com | 484.731.4010

The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange valve components with those of other manufacturers.