Dwyer F6 & F7 Series Vertical Level Switches Instructions (+ PDF)

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1 Dwyer F6 & F7 Series Vertical Level Switches

6 Documents / Resources

6.1 References

7 Related Posts

Dwyer F6 & F7 Series Vertical Level Switches

MODELS

DIMENSION

DIMENSIONS – IN (MM)
Model	(A) Stem Length	(B) Float Diameter	(C) Float Height	(D) Actuation from HexCD
F7-SB	2.75 (70)	1.38 (35)	1.13 (29)	1.2 (31)
F7-SS2	2.06 (52)	1.0 (25)	1.0 (25)	0.73 (19)
F6-SS	2.17 (55)	1.11 (28)	1.11 (28)	–
F7-MPP	1.63 (41)	0.63 (16)	0.63 (16)	0.47 (12)
F7-PP	2.18 (55)	1.18 (30)	1.0 (25)	0.69 (18)
F7-BT	2.18 (55)	1.18 (30)	1.0 (25)	0.69 (18)
F7-PVC	3.44 (87)	1.5 (38)	1.81 (46)	0.75 (19)
F7-T1	3.47 (88)	2.13 (54)	1.94 (49)	0.92 (22)
F7-ST713	3.38 (86)	2.06 (52)	2.06 (52)	1.09 (28)
F7-ST714	3.38 (86)	2.06 (52)	2.06 (52)	1.09 (28)
CDDistance between hex and liquid (S.G. = 1.0) level at actuation point will vary with specific gravity changes.

The Series F6 & F7 Vertical Level Switches are designed to be mounted at the maximum or minimum level point to provide level indication and control. Models are shipped with normally open switch contacts which close as the float rises toward the mounting threads.

BENEFITS/FEATURES

Simple installation with low cost and reliable design
Flexible application design with open or close circuits for rising or falling levels with vertical models that mount internally, oriented within 30° of vertical, or select optional fittings for external mounting
Long product life from hermetically sealed reed switches that are actuated by magnets permanently bonded inside the float arm
Switch ratings are suitable for many solid state control systems and monitors or alarms
Variety of application use with high current, simple relay interfaces

MODEL CHART
Model	Applications	Material Float/Stem	Temperature Limits	Pressure Limits	Min. S.G.	Electrical Rating	Wire Leads	Mtg NPT (M)	Weight oz (g)
F7-SB*	General purpose	Buna-N and epoxy/316 SS	220°F (105°C)	150 psig (10 bar)	0.60	25 VA: 1 A	22 AWG 18˝ (45 cm)	1/8˝	2 (58)
						@ 220 VAC
F7-SS2*	High temp/pressure,	316 SS (CYC)/316 SS	300°F (149°C)	450 psig (31 bar)	0.75	25 VA: 1 A	22 AWG 18˝ (45 cm)	1/8˝	1.2 (34)
	corrosives					@ 200 VAC
F6-SS	Corrosives	316 SS/316 SS	257°F (125°C)	218 psig (15 bar)	0.65	20 VA: 0.08 A	20 AWG 11.8˝ (30 cm)	1/8˝	1.59 (45)
						@ 240 VAC
F7-MPP**	Broad chemical	Polypropylene/	180°F (82°C)	100 psig (6.89 bar)	0.90	10 VA: 0.1 A	22 AWG 24˝ (61 cm)	1/8˝	0.8 (23)
	compatibility	polypropylene				@ 100 VAC
F7-MPP-NO**	Broad chemical	Polypropylene/	176°F (80°C)	100 psig (6.89 bar)	0.90	50 VA: 0.2 A	22 AWG 24˝ (61 cm)	1/8˝	0.8 (23)
	compatibility	polypropylene				@ 240 VAC
F7-PP*	Broad chemical	Polypropylene and epoxy/	220°F (105°C)	100 psig (6.89 bar)	0.60	30 VA: 0.14 A	22 AWG 24˝ (61 cm)	1/8˝	0.8 (23)
	compatibility	polypropylene				@ 220 VAC
F7-BT*	Oils and fuels	Buna-N and epoxy/PBT***	220°F (105°C)	150 psig (10 bar)	0.45	30 VA: 0.14 A	22 AWG 24˝ (61 cm)	1/8˝	0.7 (20)
						@ 220 VAC
F7-PVC	Chemical and plating	CPVC/CPVC	180°F (82°C)	15 psig (1 bar)	0.85	20 VA: 0.08 A	22 AWG 24˝ (61 cm)	1/4˝	5 (140)
						@ 240 VAC
F7-T1	Viscous, sticky or corrosive	PTFE/TFE	300°F (149°C)	30 psig (2 bar)	0.80	20 VA: 0.08 A	22 AWG 24˝ (61 cm)	1/4˝	6 (170)
	liquids					@ 240 VAC
F7-ST713	Oils, water and chemicals	316 SS/316 SS	300°F (149°C)	750 psig (52 bar)	0.80	20 VA: 0.08 A	22 AWG 24˝ (61 cm)	1/4˝	6 (170)
						@ 240 VAC
UL listed. F7-MPP is normally closed/F7-MPP-NO is normally open. **PBT-Polybutylene terephthalate.

ACCESSORIES – FOR EXTERNAL MOUNTING OF VERTICAL MODELS
Model	Description
A-347	1/8˝ x 1-1/4˝ NPT carbon steel adaptor
A-347-SS	1/8˝ x 1-1/4˝ NPT 316 SS adaptor
A-348	1/8˝ x 1-1/2˝ NPT carbon steel adaptor