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3 & C Series 1/4" Man. Sleeve Guard Sockets, Hose Stem
3 & C Series 1/4" 1-Way Manual Sleeve Guard Sockets
Sockets with modified valves require a plug with a dill valve.
1/4" One Way Shut-Off -- 3 & C Series
(Industrial Interchange)
Sockets with modified valves (Dill Valve)
Foster 3 thru 6 Series couplers are designed for rigid mounting that allows a simple push-to-connect operation, constructed of a solid brass body and a steel valve. The "FM" Series are mechanically interchangeable with similar industrial interchange couplings made by other manufacturers and accept plugs that conform to MIL-C4109-F. Plugs used with the "FM" Series are the Industrial Interchange plugs that are found on pages 275, 280, 286, and 288 of this catalog. FM Series 3 and 5 couplers comply with A-A-59439.
Sleeve-Lock Option:
Sleeve-Lock feature locks
automatic socket against accidental disconnect. To connect, align ball with slot. After connection, rotate sleeve to lock. To disconnect, realign ball with slot and retract sleeve. Sizes available with sleeve lock are shown in the tables on following pages.
| Specifications | Body Size | |||
| 1/4" | 3/8"" | 1/2" | 3?4" | |
| Rated Pressure (psig) | 300 PSIG; vacuum to 27" Hg | |||
| Temperature Range (std seals) | -38° to +250°F | |||
| Locking Device | 3 pins | 4 pins | 6 pins | 6 pins |
| Vacuum Data | ||||
| -- Disconnected (coupler only) | Not Recommended | |||
| -- Connected | 27" Hg | |||
| Approximate CFM at 100 (psig) | 37 | 70 | 150 | 190 |
Optional Seal [Ordering]:
Buna-N seal is standard. Alternate seals are specified by adding the appropriate suffix to the catalog number.
For example, 3003 socket with Heat Adder is 3003H
One Way Shut-Off -- 3 thru 6 & B, C, D Series
(Industrial Interchange)
| Service | Construction | Seal | Temperature | Suffix |
| Air, Vacuum, Grease, & Oil | Brass & Steel | Buna-N | -38° to +250°F | none |
| Water | Brass & S/S | Buna-N | +32? to +100°F | W |
| Hot Water | Brass & S/S | Viton | -15° to +400°F | HW |
| Steam | Brass Body, Brass Sleeve, & | Ethylene Propylene | -38° to +300°F | S |
| Heat | Brass & Steel | Viton | -15° to +400°F | H |
| Less Valve | Brass & Steel | Buna-N | -38° to +250°F | LV |
| Dill Valve | Brass & Steel | Buna-N | -38° to +250°F | D |
Performance:
FM Series (1/4", 3/8", 1/2", 3/4")
