A.Y. McDonald 9702 Service manual

Industrial and Specialty Valves / Fittings

Steam Stops

A.Y. McDonald Mfg. Co. Steam Stops are constructed from heavy duty cast brass or iron. They utilize a tapered plug
design with special lubricant for an effective seal at high temperatures. These valves are recommended to be used in
steam piping applications ranging 125 PSI to 150 PSI. Not intended for liquid matter or natural gas use.

125 PSI Steam

For Square Head Wrench,
refer to chart on page 3.

9702

Bronze Square Head Plug
Less Check

Inlet: FIP Thread
Outlet: FIP Thread
Sizes: 3/8",1/2", 3/4",1", 1 1/4",

1 1/2", 2", 2 1/2", 3"

9702

9703

DIMENSIONS - 9702

SIZE A B C D E

3/8" .906 .906 .406 1.391 1.188
1/2" 1.063 1.063 .469 1.453 1.297
3/4" 1.188 1.188 .578 1.688 1.453

1" 1.5 1.5 .688 2.156 1.938
1 1/4" 1.625 1.625 .781 2.359 2.031
1 1/2" 2.0 2.0 1.0 2.688 2.344

2" 2.531 2.531 1.156 3.203 2.922
2 1/2" 2.75 2.75 1.203 3.594 3.188

3" 3.5 3.5 1.203 3.906 3.906