Square D > On-line Catalog > Products > Pressure, Vacuum, and Float Switches > Vacuum Switches: Types GAW and GVG	Search

Digest 174 Quick Page Locator Enter a page number from our paper catalog to go directly to that page in our online catalog. Example: 5 - 3

Section - Page -

Vacuum Switches

Types GAW and GVG

Class 9016 / Refer to Catalog 9012CT9701

Type GAW

Sensitive Control Applications

GAW switches are provided with double throw contacts; normally open and normally closed circuits allow these controls to be used for standard or reverse action applications.

Standard devices can be mounted from the front with the bracket provided. Two mounting screws will be required for a firm attachment to any smooth, flat surface. Allowance must be made for flange projection. Controls with Form F modification include two mounting feet with 9/32" mounting holes on 3-3/4" centers. Range and Differential adjustments are internal and exposed by removal of the front cover.

 

File E12443 CCN NOWT

File LR25490 Type GAW ONLY

Maximum allowable positive pressure: 100 psig.
Diaphragms are oil resisting, nitrile butadiene rubber (BUNA N).
Electrical Ratings and Temperature Limitations—See page 22-2 for Type G machine tool.

 

Table 22.22:

Class 9016, Diaphragm Actuated

Range on Decreasing Vacuum (In. of Hg)	Adjustable Differential Adds to Rangea (In. of Hg)	Contact Arrangement	Pipe Tap (NPTF)	NEMA 4, 4X & 13 Encl.		NEMA 7 & 9 b
				Type	$ Price	Type	$ Price
0–28.7	At Minimum Range: 0.8–9 At Mid-Range: 1.3–7.4	1 N.O.–1 N.C.	1/4 "-18	GAW1	206.00	GAR1	646.00
0–25	5–20	1 N.O.–1 N.C.	1/4 "-18	GAW2	180.00	N/A	—
0–28.3	At Minimum Range: 1–9 At Mid-Range: 1.7–7.4	2 N.O.–2 N.C.	1/4 "-18	GAW21	225.00	GAR21	677.00
0–25	5–20	2 N.O.–2 N.C.	1/4 "-18	GAW22	220.00	N/A	—

a	Add Differential to Range to obtain operating point on increasing vacuum (within vacuum limitations). Differential increases linearly over range.

b	Min. differential doubles with NEMA 7 & 9 enclosures.

 

Table 22.23:

Available Modifications

Modifications
Description	Form	$ Price
Side conduit hub	B2	13.10
Removable conduit hub	B4	13.10
Mounting feet (GAW 1+21 Only)	F	16.40
VITON® diaphragm	Q14	16.40
Range scale window	V1	8.70
1/4"-18 NPT external thread pressure connection	Z	—
Fungus proofing per MIL-T-152B with varnishes per MIL-V-173A	Z12	Add 10% to price
1/2"-14 NPT external thread, 1/4"-18 NPTF internal thread pressure connection (standard actuator only)	Z16	42.60

 

Table 22.24:

Vacuum Codes

Settings (In. of Hg)	Code
3–8	J09
16.5–25	J10
17–22	J11
18–23	J12
20–25	J13
Specify other vacuum	J99

 

Type GVG

The Class 9016 Type GVG1 is designed as a companion to the Class 9036 Type GG and the Class 9037 Type GG float switches in common use on vacuum heating pumps. Electrical ratings of float and vacuum switch types are equal.

 

Table 22.25:

Class 9016, Contacts Open on Increasing Vacuum

Cut-out Range (In. of Hg)	Approximate Adjustable Differential (In. of Hg)	Cut-in Range (In. of Hg)	Poles	Pressure Connection	NEMA 1 Enclosure
					Type	$ Price
5–25	5–10	0–20	2	1/4"-18 NPSF	GVG1	—

Maximum allowable positive pressure: 150 psig. In. of Hg = inches of mercury

 

File E12158 CCN NKPZ

File LR25490

 

Table 22.26:

Available Modifications

Description	Form	$ Price
3-Way Lever—Nameplate marked: Float only—Vacuum and Float—Continuous (Factory Modification Only)	E	19.30
Mounting Bracket (For Retrofit Order Class 9049 Type A-53 Bracket Kit)	F	12.80
Reverse action—Normally open contacts	R	9.60
1/4" Male Pipe Connection (1/4"-18 NPT, External Thread) (For Retrofit, Use 1/4" Pipe Nipple)	Z	—

 

CP7G

Discount Schedule

Modified 1/17/08