McDonnell Miller - Series FS4-3

McDonnell Miller Series FS4-3 Universal design serves the widest variety of applications. 1" NPT. Two electrical knock-outs allows connection from either end. Sensitivity adjusting screw makes flow adjustment easy. Single pole, double throw snap switch. Hardened stainless steel bearings minimize friction. Sealed Monel bellows.
Minimum temperature 32°F
Maximum temperature 300°F
Maximum pressure 150 psi

Ordering Information
Model Number	Part Number	Description	Weight lbs.	Price
FS4-3	114400	General Purpose flow switch	1.9	$137.00
FS4-3J	114610	FS4-3 w/ BSPT connection	1.9	$143.00
FS4-3-RP	114650	FS4-3 w/ SS reinforced paddles	2.3	$185.00
FS4-3Z	114410	FS4-3 w/ ANSI terminal connections	1.9	$Call
FS4-3A	114450	FS4-3 w/ tamper-proof cover screws	2	$Call
FS4-3C	114451	FS4-3 w/ trimmed paddles	1.9	$Call
FS4-3D	114550	FS4-3 w/ 2 SPDT switches	2.3	$225.00
FS4-3S	114641	FS4-3 w/ SS body, monel bellows	1.9	$435.00
FS4-3SJ	176216	FS4-3S w/ BSPT connection	1.9	$Call
FS4-3DS	114642	FS4-3S w/ 2 SPDT switches	3.3	$500.00
FS4-3-5R	114405	FS4-3 w/ 5 second DOB	2.3	$Call
FS4-3-20	114425	FS4-3 w/ 20 second DOB	2.3	$Call
FS4-3J-E	114611	FS4-3J-CE conformance rated	1.9	$Call
FS4-3D-E	114552	FS4-3D-CE conformance rated	1.9	$Call
FS4-3S-E	114646	FS4-3S-CE conformance rated	1.9	$Call
FS4-3F	114625	FS4-3 for sprinkler service	1.9	$Call
FS4-3FCAN	114626	FS4-3 for sprinkler service (Canada)	2.3	$Call
FS4-3F-20	114635	FS4-3F w/ 20 second DOM	2.3	$Call
FS4-3DF	114555	FS4-3F w/ 2 SPDT switches	2.3	$Call
FS4-3DF-20	114640	FS4-3F w/ 20 second DOM, 2 SPDT switches	3.3	$Call
NOTE: Do not use liquid flow switches on systems with flow greater than 10 feet per second

Electrical Ratings
Voltage	Motor Switching Rating		Pilot Duty
Voltage	Full Load	Locked Rotor	Pilot Duty
120 VAC	7.4	44.4	125 VA at 120 or 240 VAC
240 VAC	3.7	22.2	125 VA at 120 or 240 VAC
Dimensions
A	B	C	D	E	F	G
3	1 1/2	7/8	2 7/32	8 7/16	2 15/16	3 3/8
H	J	K	L	M	N
1 11/16	1 7/16	1 1/8	3 7/16	2 1/16	1
Flow Rates
		Mode of Operation
Pipe Size NPT in.	Settings	Flow gpm	No Flow gpm	Max. Flow Rate gpm w/o paddle damage
1	Factory or minimum	6	3.6	27
1	Maximum	10.2	9.2	27
1 1/4	Factory or minimum	9.8	5.6	47
1 1/4	Maximum	16.8	15	47
1 1/2	Factory or minimum	12.7	7	63
1 1/2	Maximum	23	198.5	63
2	Factory or minimum	18.8	9.4	105
2	Maximum	32.8	24	105
2 1/2	Factory or minimum	24.3	11.6	149
2 1/2	Maximum	42.4	37.5	149
3	Factory or minimum	30	12	230
3	Maximum	52.1	46.1	230
4	Factory or minimum	39.7	19.8	397
4	Maximum	73.5	64.2	397
5	Factory or minimum	58.7	29.3	654
5	Maximum	115	92	654
6	Factory or minimum	79.2	39.6	900
6	Maximum	166	123	900
Values are +- 10%
For Model FS4-3F & FS4-3DF
NPT Pipe Size	Paddle to use Length	Tee Size
1"	1 11/32" as furnished (only)	1" x 1" x 1" NPT Tee
1 1/4"	Trim 1 1/2" pipe size paddle with template	1 1/4" x 1 1/4" x 1" NPT Tee (Paddle must be bowed for insertion into 1 1/4" tee)
1 1/2"	2 1/16" as furnished (only)	1 1/2" x 1 1/2" x 1" NPT Tee (Paddle must be bowed for insertion into 1 1/2" tee)
NOTE: Only listed pipe sizes meet UL requirements for fire sprinkler systems.

Contact Us Directly:

Toll Free: 1-800-780-3776
Int'l Phone: 770-957-9599
Int'l Fax: 770-957-9563
E-Mail: Email Your Request

Mailing Address: Power Plus International
143 McDonough Parkway
McDonough, GA 30253