FLOW CONTROL
WASHERS
Gaskets and 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 | 5/8" | 0.860 | None |
| 584-2 | 5/8" | 0.900 | 408-04, 409-04,436-04 |
| 584-3 | 5/8" | 0.960 | 414-04, 415-04, 426-04,446-04 |
| 584-5 | 5/8" | 1.080 | 454-04, 456-04 |
| 584-6 | 3/4" | 0.960 | 414-05, 415-05, 426-05, 446-05 |
| 584-7 | 3/4" | 0.900 | 408-05, 409-05, 436-05 |
| 584-9 | 3/4" | 1.130 | 454-05, 454-06, 456-05, 456-06 |
| Armored Gaskets/Shields | Non- Steam/ Water | Steam/Water | |||
|---|---|---|---|---|---|
| Model | Material | Max °F | PSIG @ 100°F | Max °F | PSIG @ 100°F |
| 585-1 to 9 | Grafoil | 750 | 4000 | 456 | 450 |
| 588-1 to 9 | Non Asb | 750 | 400 | NA | NA |
| 595-1 to 9 | Teflon®* | 400 | 300 | NA | NA |
| 592-1 to 9 | Mica | NA | NA | 456 | 450 |
How to order: Specify ID x OD x thickness
| Model | Material | Temp °F | Available Thickness |
|---|---|---|---|
| 558 | Viton®* | 400 | 1/16, 3/32, 1/8 |
| 561 | Solid Teflon®* | 400 | 1/16, 3/32, 1/8 |
| 564 | Neoprene | 200 | 1/16, 3/32, 1/8, 1/4 1/16, 3/32, 1/8 |
| 565 | Buna-N | 225 | 1/8 |
| 573 | Teflon®* Envelope | 400 | 1/16, 3/32 |
| 577 | Ethylene Propylene | 300 | 1/16, 3/32 |
| 583 | Non-Asbestos C4401 | 750 |
| Model | Available ID’s | Available OD’s |
|---|---|---|
| 59 | 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