Boiler Gaskets - Topog-E, Black Max, Blue Max, Spiral Max Topog-E Manhole & Handhole Gaskets Topog-E Series 3000 "Obround" Boiler Gaskets (Pure PTFE, FDA Compliant)
Topog-E Series 3000 obround gaskets are designed for boiler and tank inspection ports, offering reliable sealing with low stress and excellent dimensional stability. Made from 100% expanded PTFE, they are soft, highly compressible, and ideal for worn or uneven surfaces. These gaskets resist creep, maintain bolt torque, are FDA compliant, and are unaffected by environmental conditions for long shelf life.
Topog-E Series 3000 Advantages:
High adaptability, suitable for flanges with corrosion and with uneven sealing surface
Pressure test and service with the same gasket
Very easy installation and removal
Anti-sticking material, low effort for surface cleaning when installing a new gasket
No embrittlement of the gasket in storage or in service
Pure PTFE, conforms to FDA standards
Clean Steam Applications
| Part # | A | B | C |
(6-Pack) Price |
Qty | |
|---|---|---|---|---|---|---|
| 937-001-OBPKT | 3" | 4" | 1/2" Flange | $118.62 | Add to Cart | |
| 937-004-OBPKT | 3-1/4" | 4-1/2" | 1/2" Flange | $138.60 | Add to Cart | |
| 937-005-OBPKT | 3-1/4" | 5" | 1/2" Flange | $151.26 | Add to Cart | |
| 937-006-OBPKT | 3-1/2" | 4-1/2" | 1/2" Flange | $146.70 | Add to Cart | |
| 937-007-OBPKT | 4" | 5" | 1/2" Flange | $355.68 | Add to Cart | |
| 937-008-OBPKT | 4" | 6" | 1/2" Flange | $207.54 | Add to Cart | |
| 937-009-OBPKT | 6" | 8" | 1/2" Flange | $373.50 | Add to Cart | |
| 937-010-OBPKT | 3" | 4" | 5/8" Flange | $152.04 | Add to Cart | |
| 937-011-OBPKT | 3" | 4-1/2" | 5/8" Flange | $166.62 | Add to Cart | |
| 937-012-OBPKT | 3" | 5" | 5/8" Flange | $181.08 | Add to Cart | |
| 937-013-OBPKT | 3-1/4" | 4-1/2" | 5/8" Flange | $176.40 | Add to Cart | |
| 937-014-OBPKT | 3-1/4" | 5" | 5/8" Flange | $191.82 | Add to Cart | |
| 937-015-OBPKT | 3-1/2" | 4-1/2" | 5/8" Flange | $186.30 | Add to Cart | |
| 937-016-OBPKT | 4" | 5" | 5/8" Flange | $447.48 | Add to Cart | |
| 937-017-OBPKT | 4" | 6" | 5/8" Flange | $259.56 | Add to Cart | |
| 937-018-OBPKT | 6" | 8" | 5/8" Flange | $457.26 | Add to Cart | |
| 937-025-OBPKT | 4" | 5" | 3/4" Flange | $243.78 | Add to Cart | |
| 937-026-OBPKT | 4" | 6" | 3/4" Flange | $281.22 | Add to Cart | |
| 937-027-OBPKT | 6" | 8" | 3/4" Flange | $485.82 | Add to Cart |
| Part # | A | B | C | Individual Price | Qty | |
|---|---|---|---|---|---|---|
| 937-028-OBT | 8" | 10" | 3/4" Flange | $248.30 | Add to Cart | |
| 937-029-OBT | 10" | 14" | 3/4" Flange | $405.14 | Add to Cart | |
| 937-030-OBT | 10" | 15" | 3/4" Flange | $431.30 | Add to Cart | |
| 937-031-OBT | 11" | 14" | 3/4" Flange | $440.36 | Add to Cart | |
| 937-032-OBT | 11" | 15" | 3/4" Flange | $468.80 | Add to Cart | |
| 937-033-OBT | 11" | 16" | 3/4" Flange | $497.16 | Add to Cart | |
| 937-034-OBT | 12" | 15" | 3/4" Flange | $506.28 | Add to Cart | |
| 937-035-OBT | 12" | 16" | 3/4" Flange | $536.98 | Add to Cart | |
| 937-036-OBT | 8" | 10" | 1" Flange | $272.74 | Add to Cart | |
| 937-037-OBT | 10" | 14" | 1" Flange | $436.38 | Add to Cart | |
| 937-038-OBT | 10" | 15" | 1" Flange | $463.66 | Add to Cart | |
| 937-039-OBT | 11" | 14" | 1" Flange | $472.74 | Add to Cart | |
| 937-040-OBT | 11" | 15" | 1" Flange | $502.32 | Add to Cart | |
| 937-041-OBT | 11" | 16" | 1" Flange | $531.86 | Add to Cart | |
| 937-042-OBT | 12" | 15" | 1" Flange | $540.94 | Add to Cart | |
| 937-043-OBT | 12" | 16" | 1" Flange | $572.76 | Add to Cart | |
| 937-046-OBT | 10" | 15" | 1-1/4" Flange | $497.16 | Add to Cart | |
| 937-047-OBT | 11" | 14" | 1-1/4" Flange | $506.28 | Add to Cart | |
| 937-048-OBT | 11" | 15" | 1-1/4" Flange | $536.98 | Add to Cart | |
| 937-049-OBT | 11" | 16" | 1-1/4" Flange | $567.68 | Add to Cart | |
| 937-050-OBT | 12" | 15" | 1-1/4" Flange | $576.76 | Add to Cart | |
| 937-051-OBT | 12" | 16" | 1-1/4" Flange | $609.72 | Add to Cart |
© 2026 Power Plus International, Inc. d/b/a Boiler USA, All Rights Reserved. |
Back to Products
