Machine Tool, Modifications, and Accessories

Lock on rising pressure, manual reset only

Available on GDW, GDWM, GEW, GEWM, GFW, GFWM only

E3 

120 Vac or Vdc neon pilot light

Available on all GAW–GMW, GAWM–GFWM

with clear lens

G17

with red lens

G18

24 Vdc only LED

For pilot light conversion kits:
 See 9998 PC-306–308.
 Complete Class and Type information required

with clear lens

G21

with red lens

G22

24 Vdc LED pilot light with green lens

Class 9012 GAW–GMW and GAWM–GFWM, or

Class 9016 GAW and Class 9025G

G23

SPDT snap switch rated 1.1 A at 125 Vdc
(minimum differential doubles)

Available on GAR–GFR, GAW–GJW, GAWM–GFWM

H3 

Prewired 5-pin Brad Harrison male receptacle #41310 or interchangeable Crouse-Hinds receptacle.
For use with Brad Harrison female portable plug #41306, 41307, 41308, or equivalent.

Available on GAW–GJW single pole devices only

H10

or

H11

Micro connector, 4-pin, for 24 Vdc pilot light

G•W (single pole only), except GAW2 and Form B2.

H17

External range adjustment (includes knob and range scale window)

GAW–GFW, GAWM–GFWM, GKW–GMW

K  

External range adjustment slotted for screwdriver
(includes range scale window)

GAW–GFW, GAWM–GFWM, GKW–GMW

K1 

Pg 13.5 conduit thread and 1/4—19 BSP pressure connection

G•WM only

M12

Standard Nitrile (Buna-N) diaphragm in #316 stainless steel flange

Not available on Types 1 and 21.

Available on all other GAR, GAW, GBR, GBW, GDR, GDW, GER, GEW, GAWM, GBWM, GDWM, GEWM, GGW, GHW, GKW, and GLW switches.

Q1 

Viton^® fluorocarbon diaphragm in #316 stainless steel flange

Not available on Types 1 and 21.

Available on all other GAR, GAW, GBR, GBW, GDR, GDW, GER, GEW, GAWM, GBWM, GDWM, GEWM, GGW, GHW, GKW, and GLW switches.

Q4 

Range scale window (standard with Forms K and K1)

GAW–GMW, GAWM–GFWM

V1 

Special setting specified
(If indicating only a fixed differential setting, specify whether this setting is on increasing or decreasing pressure. )

All 9012G

Y1

1/4"-18 NPT external thread pressure connection

GAR, GAW, GDR, GDW, GGW, GKW
Not available in combination with Forms Q1, Q3, Q4.

Z  

1/2"-14 NPT external thread, 1/4"-18 NPTF internal thread pressure connection

GAR, GAW, GDR, GDW, GGW, GKW
Not available in combination with Forms Q1, Q3, Q4.

Z16

7/16"-20 UNF-2B internal thread pressure connection

GAR–GFR; GAW–GMW
Not available in combination with Forms Q1, Q3, Q4.

Z18

SPDT snap switch rated 1.1 A at 125 Vdc (minimum differential doubles)

9998PC313

H3

Standard Nitrile (Buna-N) diaphragm in #316 stainless steel flange

9998PC177–179, 268, 269

Q1

9998PC265–267

Viton^® fluorocarbon diaphragm in #316 stainless steel flange

9998PC177–178, 268, 269

Q4

9998PC265–267

1/4"-18 NPT external thread pressure connection

9998PC265–269

Z

1/2"-14 NPT external thread, 1/4"-18 NPTF internal thread pressure connection

9998PC265–269

Z16

7/16"-20 UNF-2B internal thread pressure connection

9998PC177, 178, 265–273

Z18

Stainless steel surge reducer for use on oils, coolants, and hydraulic fluids (not recommended for air or water)

9012G

9049A26S