F61 Series Flow Switch

الفئة Pneumatic Fitting& Air Tube

Liquid Flow Switches are Single – Pole, Double – Throw (SPDT) flow switches that are used in liquid lines carrying
water,ethylene glycol,or other liquids not classified as hazardous, They can be wired to energize one device and

de-energize another device powered from the same source when liquid flow either exceeds or drops below the set flow rate.

Description

The F61 Series Flow Switches respond to fluid flow in lines carrying water, ethylene glycol, or other nonhazardous fluids. Two subseries are available. F61 Series Sensitive Flow Switches respond to low fluid flow rates in applications with pipe sizes under 1-inch trade size.

F61 Series Standard Flow Switches use a variety of paddle sizes to respond to fluid flow rates in applications with pipe sizes greater than 1-inch trade size.

Single-Pole, Double-Throw (SPDT) and Single-Pole, Single-Throw (SPST) open-low versions of these flow switches are available.

Features and Benefits

NEMA 3 or NEMA 3R Enclosure on Selected Models: Allows use in indoor or outdoor applications
Stainless Steel Bellows on Selected Models: Allow use in fluid lines carrying chlorinated water, treated water, or other nonhazardous fluids
Low-Flow Operation on Selected (Sensitive) Models: Actuates switch with less than 1.0 GPM (3.8 L/min) flow for water applications or 9.0 GPM (34.1 L/min) flow for steam applications
Gold-Plated Contacts on MG Models: Reduces intermittent contact problems in low-voltage and low-current circuits
Maximum Fluid Pressure of 150 psig (1034 kPa:Permits use in a wide range of pressure flow conditions

Specifications

Media Temperature Range
KB-11, KD-3, KD-4	32°F to 250°F (0°C to 121°C)
MB-1, MD-1, MD-2	-20°F to 250°F (-30°C to 121°C)
Maximum System Pressure	150 psig (1034 kPa)
Materials Of Construction	KB-11, MB-1, KD-3

Wiring

ELECTRICAL RATINGS

MOTOR RATINGS	120V	208V	240V	277V	Action on increase of flow F61 Series
Horsepower	1	1	1	–
AC full load amps	16	8.8	8	–
AC locked rotor amps	96	52.8	48	–
Noninductive or Resistance load amps	16	16	16	16
Pilot duty – 125 VA 24/277 VAC

Dimensions

Model	Size	Connections
F61KD-3	1/2″	FNPT inline
F61MD-1	1/2″	FNPT inline
F61KD-4	3/4″	FNPT inline
F61MD-2	3/4″	FNPT inline
F61KB-11	1″	1″ MNPT insertion
F61MB-1	1″	1″ MNPT insertion

*Flow rates for these sizes are calculated.

+GPM figures are for a switch with a 6 in. paddle. For 4 in. And 5 in.Line pipe,the 6 in.Paddle is trimmed to a 4 in.and 5 in. length, respectively

MODEL	INLET/OUTLET SIZE (Female NPT)	NEMA Enclosure	ADJUSTMENT RANGE – gpm (m3/hr)
			R to Y closes flow increase	R to Y opens flow decrease
F61KD-3	1/2″ x 1/2″	1	Minimum 0.6 (0.14) Maximum 1.1 (0.25)	Minimum 0.3 (0.07) Maximum 0.9 (0.2)
F61KD-4	3/4″ x 3/4″	1
F61MD-1	1/2″ x 1/2″	3R
F61MD-2	3/4″ x 3/4″	3R