Boiler Gaskets - Topog-E, Black Max, Blue Max, Spiral Max Black Max Boiler Handhole & Manhole Gaskets Black Max "Obround" Boiler Handhole & Manhole Gaskets
Compared to spiral wound gaskets, Black-Max® "Obround" Handhole & Manhole Gaskets seal better with our exfoliated graphite and has better recovery properties. Black-Max® Series 2000 gaskets are specifically designed and fabricated to provide superior performance.
BLACK-MAX® GASKETS
Temp: -400°F (-240°C) to +850°F (+454°C) in atmosphere, +1200°F (+650°C) in Steam
Pressure: 2000 psig (70 bar) | P x T 175,000 (6,000) 1/4"
M Factor 2 (Smooth Flange Surface) | Y Stress 900 psi (6 MPa) (Smooth Flange Surface)
Maximum Gasket Load 24,000 psi (165 MPa)
Gaskets are 1/4" Nominal Thickness
| Part # | A | B | C |
(6 Pack) Price |
Qty | |
|---|---|---|---|---|---|---|
| 868-002-OBPK | 2-3/4" | 3-1/2" | 1/2" Flange | $39.24 | Add to Cart | |
| 868-003-OBPK | 3" | 3-3/4" | 1/2" Flange | $40.44 | Add to Cart | |
| 868-004-OBPK | 2-3/4" | 3-3/4" | 1/2" Flange | $41.34 | Add to Cart | |
| 868-005-OBPK | 3" | 4" | 1/2" Flange | $41.76 | Add to Cart | |
| 868-006-OBPK | 3" | 4-1/2" | 1/2" Flange | $44.16 | Add to Cart | |
| 868-007-OBPK | 3-1/4" | 5" | 1/2" Flange | $47.52 | Add to Cart | |
| 868-008-OBPK | 3-1/4" | 4-1/2" | 1/2" Flange | $43.62 | Add to Cart | |
| 868-009-OBPK | 3-1/2" | 4-1/2" | 1/2" Flange | $46.20 | Add to Cart | |
| 868-010-OBPK | 4" | 6" | 1/2" Flange | $52.92 | Add to Cart | |
| 868-011-OBPK | 6" | 8" | 1/2" Flange | $98.28 | Add to Cart | |
| 868-024-OBPK | 3-1/4" | 4-1/2" | 9/16" Flange | $60.85 | Add to Cart | |
| 868-025-OBPK | 3-1/4" | 5" | 9/16" Flange | $66.60 | Add to Cart | |
| 868-026-OBPK | 3-1/2" | 4-1/2" | 9/16" Flange | $64.70 | Add to Cart | |
| 868-012-OBPK | 2-3/4" | 3-1/2" | 5/8" Flange | $44.04 | Add to Cart | |
| 868-013-OBPK | 2-3/4" | 3-3/4" | 5/8" Flange | $46.32 | Add to Cart | |
| 868-014-OBPK | 3" | 3-3/4" | 5/8" Flange | $45.00 | Add to Cart | |
| 868-015-OBPK | 3" | 4" | 5/8" Flange | $44.16 | Add to Cart | |
| 868-016-OBPK | 3" | 4-1/2" | 5/8" Flange | $44.76 | Add to Cart | |
| 868-017-OBPK | 3-1/4" | 4-1/2" | 5/8" Flange | $48.06 | Add to Cart | |
| 868-018-OBPK | 3-1/4" | 5" | 5/8" Flange | $52.20 | Add to Cart | |
| 868-019-OBPK | 3-1/2" | 4-1/2" | 5/8" Flange | $50.76 | Add to Cart | |
| 868-020-OBPK | 4" | 5" | 5/8" Flange | $52.92 | Add to Cart | |
| 868-021-OBPK | 4" | 6" | 5/8" Flange | $54.12 | Add to Cart | |
| 868-022-OBPK | 6" | 8" | 5/8" Flange | $104.64 | Add to Cart | |
| 868-033-OBPK | 4" | 5" | 3/4" Flange | $58.14 | Add to Cart | |
| 868-034-OBPK | 4" | 6" | 3/4" Flange | $60.42 | Add to Cart | |
| 868-035-OBPK | 4" | 6" | 1" Flange | $67.44 | Add to Cart | |
| 868-036-OBPK | 6" | 8" | 3/4" Flange | $111.24 | Add to Cart | |
| 868-037-OBPK | 6" | 8" | 1" Flange | $124.74 | Add to Cart |
| Part # | A | B | C |
(2-Pack) Price |
Qty | |
|---|---|---|---|---|---|---|
| 868-038-OBPK | 8" | 10" | 3/4" Flange | $96.00 | Add to Cart | |
| 868-041-OBPK | 10" | 14" | 3/4" Flange | $138.94 | Add to Cart | |
| 868-042-OBPK | 10" | 14" | 1" Flange | $149.56 | Add to Cart | |
| 868-043-OBPK | 10" | 14" | 1-1/4" Flange | $160.62 | Add to Cart | |
| 868-044-OBPK | 10" | 15" | 3/4" Flange | $147.84 | Add to Cart | |
| 868-045-OBPK | 10" | 15" | 1" Flange | $158.84 | Add to Cart | |
| 868-046-OBPK | 10" | 15" | 1-1/4" Flange | $170.28 | Add to Cart | |
| 868-047-OBPK | 11" | 14" | 3/4" Flange | $147.20 | Add to Cart | |
| 868-048-OBPK | 11" | 14" | 1" Flange | $155.18 | Add to Cart | |
| 868-049-OBPK | 11" | 14" | 1-1/4" Flange | $163.54 | Add to Cart | |
| 868-050-OBPK | 11" | 15" | 3/4" Flange | $154.28 | Add to Cart | |
| 868-051-OBPK | 11" | 15" | 1" Flange | $162.60 | Add to Cart | |
| 868-052-OBPK | 11" | 15" | 1-1/4" Flange | $171.10 | Add to Cart | |
| 868-053-OBPK | 11" | 16" | 3/4" Flange | $165.96 | Add to Cart | |
| 868-054-OBPK | 11" | 16" | 1" Flange | $177.46 | Add to Cart | |
| 868-055-OBPK | 11" | 16" | 1-1/4" Flange | $189.30 | Add to Cart | |
| 868-056-OBPK | 12" | 15" | 3/4" Flange | $163.54 | Add to Cart | |
| 868-057-OBPK | 12" | 15" | 1" Flange | $171.96 | Add to Cart | |
| 868-058-OBPK | 12" | 15" | 1-1/4" Flange | $180.92 | Add to Cart | |
| 868-059-OBPK | 12" | 16" | 3/4" Flange | $171.14 | Add to Cart | |
| 868-060-OBPK | 12" | 16" | 1" Flange | $179.98 | Add to Cart | |
| 868-061-OBPK | 12" | 16" | 1-1/4" Flange | $189.04 | Add to Cart | |
| 868-062-OBPK | 12" | 16" | 1-1/2" Flange | $212.06 | Add to Cart |
| Part # | A | B | C | Individual Price | Qty | |
|---|---|---|---|---|---|---|
| 868-063-OB | 14" | 18" | 3/4" Flange | $106.17 | Add to Cart | |
| 868-064-OB | 18" | 24" | 3/4" Flange | $176.33 | Add to Cart | |
| 868-065-OB | 14" | 18" | 1" Flange | $112.34 | Add to Cart | |
| 868-066-OB | 16" | 18" | 1" Flange | $127.89 | Add to Cart | |
| 868-067-OB | 18" | 24" | 1" Flange | $184.36 | Add to Cart | |
| 868-068-OB | 14" | 18" | 1-1/4" Flange | $118.70 | Add to Cart | |
| 868-069-OB | 16" | 18" | 1-1/4" Flange | $134.69 | Add to Cart | |
| 868-070-OB | 18" | 24" | 1-1/4" Flange | $192.55 | Add to Cart | |
| 868-071-OB | 14" | 18" | 1-1/2" Flange | $125.24 | Add to Cart | |
| 868-072-OB | 18" | 24" | 1-1/2" Flange | $200.93 | Add to Cart |
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