top of page

HIGH PRESSURE GAUGE GLASS WASHERS
(FOR BOILER WATER GAUGES & LIQUID LEVEL GAUGES)

SELF-SEALING MODELIP
EPDM COMPOSITION
For Steam and Water
Made only in the following sizes:

*min order quantity 10 pc

Dimensions in Inches

Washer No.

Inside Diameter

Outside
Diameter

Thickness
or Height

66 - RW - 300

66 - RW - 10 

66 - RW -  210

66 - RW - 20

66 - RW - 290

66 - RW - 280

66 - RW - 340

66 - RW - 190

66 - RW -  120

66 - RW - 180

66 - RW - 30

66 - RW - 520

66 - RW - 130

66 - RW - 90

66 - RW - 40

66 - RW - 250

66 - RW - 50

66 - RW - 370

66 - RW - 350

66 - RW - 500

66 - RW - 200

66 - RW - 510

66 - RW - 420

66 - RW - 440

66 - RW - 560

66 - RW - 570

66 - RW - 310

66 - RW - 430

66 - RW - 60

66 - RW - 150

66 - RW - 470

66 - RW - 240

66 - RW - 140

66 - RW - 390

66 - RW - 330

66 - RW - 170

66 - RW - 540

66 - RW - 110

66 - RW - 220

66 - RW - 70 

66 - RW - 530

66 - RW - 230

66 - RW - 80 

66 - RW - 160

66 - RW - 410

66 - RW - 320

66 - RW - 100

66 - RW - 460

66 - RW - 450 

66 - RW - 270 

66 - RW - 550 

66 - RW - 400 

66 - RW - 480 

66 - RW - 260 

66 - RW - 380 

66 - RW - 360 

66 - RW - 490

3/8

1/2

1/2

1/2

1/2

1/2

1/2

9/16

9/16

9/16

5/8

5/8

5/8

5/8

5/8

5/8

5/8

5/8

5/8

21/32

11/16

11/16

11/16

11/16

11/16

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

7/8

7/8

31/32

31/32

1

1

1-1/4

1-7/8

13/16

13/16

7/8

7/8

1

1

1-7/16

13/16

27/32

1-3/32

7/8

7/8

15/16

15/16

1

1

1-1/8

1-1/4

1-5/16

1-1/4

1

1-1/8

1-3/16

1-3/8

1-7/16

15/16

1

1

1-1/16

1-1/16

1-1/16

1-3/32

1-1/8

1-1/8

1-1/8

1-1/8

1-1/8

1-3/16

1-1/4

1-1/4

1-1/4

1-1/4

1-5/16

1-5/16

1-3/8

1-3/8

1-7/16

1-5/8

1-15/16

1-3/8

1-31/64

1-3/4

1-3/4

1-5/8

1-1/2

1-7/8

2-1/4

1/4

9/32

3/8

1/2

5/16

3/8

3/8

9/32

19/32

1/2

9/32

3/8

9/32

9/16

9/32

15/32

3/8

1/2

13/32

1/4

9/32

3/8

7/16

3/8

13/32

3/8

3/8

3/4

9/32

1/2

3/4

13/32

3/8

7/16

1/2

5/8

7/8

13/32

1/4

13/32

1/2

3/4

13/32

5/8

3/8

1/4

13/32

1/2

3/8

13/32

7/8

3/8

7/16

1/2

1

1-5/16

3/4

MODEL EFI 66.jpg

MODEL EFI 66

Model efi 77.png

MODELAST
NEOPRENE COMPOSITION
For Steam, Water Service and other applications

*min order quantity 10 pc

EFI 88 CHART.JPG

Other sizes available, contact Ernst Flow Industries.

MODEL EFI 88.jpg

MODEL EFI 88

Any size can be furnished to fit all type Packing Nuts and
Glass on Boiler Water Gauges and Liquid Level Gauges.

Gasket Material                                           Temperature Ratings
NEOPRENE (EFI 88) ...............................-45˚F TO 250˚F
EPDM (EFI 66 and EFI 33CS) ...................-65˚F to 300˚F
GRAPHITE (EFI 99) ......................................................550˚F
PURE PTFE (EFI 101) ...................................................450˚F
PTFE composition (soft) ...............................................500˚F
BUNA-N ........................................................-45˚F to 250˚F
FKM (VitonTM) ........................................  -20˚F TO 400˚F
PTFE ENVELOPE w/ neo. filler ..................................250˚F
PTFE ENVELOPE w/ non-asbestos filler ..................450˚F
NON-ASBESTOS ....................................................... 700˚F
GRAPHITE .....................................................................800˚F

Capture.JPG

SPECIFY:
A. Inside Diameter
B. Outside Diameter
C. Thickness or Height

Note: For Washer compatibility regarding specific requirements and applications, consult with Ernst Flow Industries.

THIN BRASS WASHERS.jpg

THIN BRASS WASHERS
For Gauge Glass Packing Nuts
Inside Diameter: 5/8” or 3/4”
Outside Diameter: 7/8”, 15/16”, 1-1/8”, 1-3/16”, 1-1/4”

PTFE WASHERS
Ideal For Use Against Acids, Solvents and Alkalies
Can be furnished to fit all type Packing Nuts and Glass on Liquid Level Gauges
All sizes made to order

MODEL EFI 101

PTFE WASHERS.jpg
PTFE DWG.JPG

SPECIFY:
A. Inside Diameter
B. Outside Diameter
C. Thickness or Height

GRAPHITE WASHERS
For Steam and Water Service

Dimensions in Inches

Washer No.

Inside Diameter

Outside
Diameter

Thickness
or Height

99 - GW - 001

99 - GW - 002 

99 - GW -  003

99 - GW - 004

99 - GW - 005

99 - GW - 006

99 - GW - 007

99 - GW - 033

99 - GW -  009

99 - GW - 010

99 - GW - 011

99 - GW - 012

99 - GW - 013

99 - GW - 014

99 - GW - 015

99 - GW - 016

99 - GW - 017

99 - GW - 018

99 - GW - 019A

9/16

39/64

5/8

39/64

5/8

5/8

5/8

47/64

23/32

3/4

3/4

3/4

3/4

3/4

3/4

3/4

47/64

3/4

47/64

13/16

13/16

3/4

7/8

7/8

15/16

1-1/8

15/16

1-1/4

1

1

1-1/16

1-1/8

1-3/16

1-3/16

1-1/4

1-1/4

1-1/4

1-5/16

1/2

3/8

3/8

3/8

1/2

3/8

3/8

3/8

1/2

3/8

1/2

1/2

1/2

1/2

5/8

3/8

1/2

3/4

5/8

MODEL EFI 99.jpg

MODEL EFI 99

GRAPHITE WASHERS DWG.JPG

SPECIFY:
A. Inside Diameter
B. Outside Diameter
C. Thickness or Height

NOTE: Consult Ernst Flow Industries for special sizes.

CONE SHAPE WASHERS
EPDM
For Steam and Water Service

CONE SHAPPED WASHERS.JPG

Dimensions in Inches

Washer No.

Size of
Glass

Overall
Height

Inside Diameter

Outside
Diameter

OD at Base
of Bevel

Height of
Bevel

Thickness
of Flange

WR - 33CS - 121 -E

WR - 33CS - 122 -E 

WR - 33CS - 123 - E

WR - 33CS - 124 - E

WR - 33CS - 125 - E

WR - 33CS - 341 - E

WR - 33CS - 342 - E

WR - 33CS - 343 - E

WR - 33CS - 343L - E

WR - 33CS - 344 - E

WR - 33CS - 345 - E

WR - 33CS - 346 - E

WR - 33CS - L347 - E

WR - 33CS - 348 - E

WR - 33CS - 349 - E

WR - 33CS - 353 - E

WR - 33CS- L568 - E

WR - 33CS - 581 - E

WR - 33CS - 584 - E

1/2

1/2

1/2

1/2

1/2

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

3/4

17/32

5/8

5/8

1/2

1/2

7/16

7/8

5/8

3/4

5/8

15/16

15/16

15/16

1

1/2

5/8

7/8

21/32

1-3/8

5/8

9/16

3/4

1/2

1/2

7/16

5/8

1/2

3/4

3/4

3/4

3/4

3/4

3/4

17/32

21/32

3/4

21/32

3/4

7/32

5/8

5/8

1-1/8

1-1/4

13/16

1

15/16

1-5/16

1-17/32

1-5/8

1-9/16

1-9/32

1-1/4

1-3/16

1-7/32

1-11/32

1-3/16

1-1/2

1-1/16

1-1/4

1-3/8

13/16

13/16

1/2

5/8

9/16

1-3/32

1-1/16

1-1/4

1-1/4

1-1/16

31/32

15/16

31/32

1

23/32

13/16

13/16

7/8

15/16

3/8
3/8

9/32

11/16

7/16

17/32

7/16

11/16

3/4

3/8

3/4

19/32

15/32

5/8

1/2

7/8

15/32

7/16

5/16

1/8

3/8

5/32

3/16

3/16

7/32

1/4

3/16

7/16

1/4

1/8

5/32

5/32

1/4

5/32

1/2

5/32

7/32

7/16

bottom of page