Gaskets & Washers
  How to Order : Specify "A" (ID) x "B" (OD) x "C" Thickness
  Example: 9/16" x 7/8" x 3/8"
  For 5/8"OD Glass: A = 9/16" for Rubber Gaskets
  For 3/4" OD Glass: A = 23/32" for Rubber Gaskets
Model Material Temp. Rating F
550 Buna-S 200
551 EPDM 300
552 Neoprene 200
553 Grafoil 600
554 Solid Teflon®* 400
556 Teflon®* / Hypolon 400
576 Viton®* 400
577 Ethylene Propylene 300 (350 for steam)

Model 584 - Butler Bevel Seal
Our PREMIUM Gasket for STEAM/WATER Service. Prevents cloudiness and erosion of gauge glass OD due to steam leakage. Each Model number consists of a pair for the upper valve and a pair lower valve. Each pair consists of an upper and lower Teflon
®* piece.
Model ID or Glass Size OD in Inches John C. Ernst Valve Sets used with each size:
584-1 584-2 584-3 584-5 5/8" 5/8" 5/8" 5/8" 0.860 0.900 0.960 1.080 None
408-04, 409-04,436-04
414-04, 415-04, 426-04,446-04
454-04, 456-04
584-6 584-7 584-9 3/4" 3/4" 3/4" 0.960 0.900 1.130 414-05, 415-05, 426-05, 446-05
408-05, 409-05, 436-05
454-05, 454-06, 456-05, 456-06

Armored Gaskets/Shields Non- Steam/ Water Steam/Water
Model Material Max F PSIG @ 100F Max F PSIG @ 100F
585-1 to 9
588-1 to 9
595-1 to 9
 Grafoil
 Non Asb
 Teflon
®*
750
750
400
4000
400
300
456
NA
NA
450
NA
NA
592-1 to 9
597-1 to 9
 Mica
 Kel-F
NA
300
NA
300
456
NA
450
NA

How to order: Specify ID x OD x thickness
Model Material Temp F Available Thickness
558
561
564
565
573
577
583
 Viton®*
 Solid Teflon
®*
 Neoprene
 Buna-N
 Teflon
®* Envelope
 Ethylene Propylene
 Non-Asbestos C4401
400
400
200
225
400
300
750
1/16, 3/32, 1/8
1/16, 3/32, 1/8
1/16, 3/32, 1/8, 1/4 1/16, 3/32, 1/8
1/8
1/16, 3/32
1/16, 3/32

Model Available ID’s Available OD’s
591 1/2 3/4, 7/8, 1
5/8 13/16, 7/8, 15/16, 1, 1-1/16, 1-1/8,
1-3/16, 1-1/4
3/4 7/8, 15/16, 1, 1-1/16, 1-1/8, 1-5/32,
1-3/16, 1-1/4, 1-5/16, 1-3/8, 1-1/2,1-3/4
 
*Viton®
is a registered trademark of DuPont Dow Elastomers
*Teflon
® is a registered trademark of DuPont
 
Catalog Page 45
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John C. Ernst Co., Inc.
Sparta, NJTel: 973-940-1600Fax: 973-940-1620
Toll Free: 1-888-463-7678

Email: info@johnernst.com

Mailing Address
21 Gail Court
Sparta, NJ 07871
Physical Address
21 Gail Court
Sparta, NJ 07871