Foster FST series plugs and sockets

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	FST Series
	Straight Thru - Industrial Interchange

How to Select - Proper coupler selection is important because of the variety of media for which they are used.


	Plugs
Female Thread	Steel Item No.	PKG.	Brass Item No.	PKG.	S/S Item No.	PKG.
1/8 FPT			12FPB	15
1/4 FPT	25FP	25	25FPB	25	25FPS	5
3/8 FPT	38FP	15	38FPB	15	38FPS	5
1/2 FPT	50FP	10	50FPB	10	50FPS	5
3/4 FPT	75FP	5	75FPB	5	75FPS	5
1 FPT	100FP		100FPB		100FPS
1-1/4 FPT	125FP		125FPB
1-1/2 FPT	150FP		150FPB
Male Thread
1/8 MPT	12MP	10	12MPB	25	12MPS	10
1/4 MPT	25MP	25	25MPB	25	25MPS	5
3/8 MPT	38MP	10	38MPB	15	38MPS	5
1/2 MPT	50MP	10	50MPB	10	50MPS	5
3/4 MPT	75MP	5	75MPB	5	75MPS	5
1 MPT	100MP		100MPB		100MPS
1-1/4 MPT	125MP		125MPB
1-1/2 MPT	150MP		150MPB
Hose Stem (Require Hose Clamps)
1/4 I.D.	25HP	10
3/8 I.D.			38HPB	5
3/4 I.D.			75HPB

	Brass Item No.		S/S Item No.
Female Thread		PKG.		PKG.
1/8 FPT	12FS	10	12FSS
1/4 FPT	25FS		25FSS
3/8 FPT	38FS		38FSS
1/2 FPT	50FS		50FSS
3/4 FPT	75FS		75FSS
1 FPT	100FS		100FSS
1-1/4 FPT	125FS
1-1/2 FPT	150FS
Male Thread
1/8 MPT	12MS	10
1/4 MPT	25MS
3/8 MPT	38MS
1/2 MPT	50MS
3/4 MPT	75MS
1 MPT	100MS
Hose Stem (Require Hose Clamps)
1/4 I.D.	25HS
3/8 I.D.	38HS
1/2 I.D.	50HS

Current Foster Price List

Type	FST Straight Thru - No Valve in either socket or plug
Interchangeability	Standard industrial interchange design, most widely used in industry. Within each series, only sockets and plugs of the same size will couple together.
Operation	Manual - Socket sleeve must be manually retracted to connect and disconnect.
Working Pressure		Brass Socket w/Brass Plug	Brass Socket w/ Steel Plug	S/S Socket w/S/S Plug
	Body Size	PSIG	PSIG	PSIG
	1/8"	2500	2600	4200
	1/4"	5200	5500	5000
	3/8"	2700	3500	5500
	1/2"	2200	2700	3000
	3/4"	1700	2700	3000
	1"	1200	2000	1700
	1 1/4"	1700	2700
	1 1/2"	1400	2200
Performance Data	Couplers have the same inside diameter as Nominal Pipe.
Options	BL: Locks against accidental disconnect. To connect, align ball with slot. After connection, rotate sleeve to lock. To disconnect, realign ball with slot and retract sleeve.

Current Foster Price List