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 | $45.72 | Add to Cart | |
| 868-003-OBPK | 3" | 3-3/4" | 1/2" Flange | $47.10 | Add to Cart | |
| 868-004-OBPK | 2-3/4" | 3-3/4" | 1/2" Flange | $48.18 | Add to Cart | |
| 868-005-OBPK | 3" | 4" | 1/2" Flange | $48.72 | Add to Cart | |
| 868-006-OBPK | 3" | 4-1/2" | 1/2" Flange | $51.48 | Add to Cart | |
| 868-007-OBPK | 3-1/4" | 5" | 1/2" Flange | $55.44 | Add to Cart | |
| 868-008-OBPK | 3-1/4" | 4-1/2" | 1/2" Flange | $50.88 | Add to Cart | |
| 868-009-OBPK | 3-1/2" | 4-1/2" | 1/2" Flange | $53.88 | Add to Cart | |
| 868-010-OBPK | 4" | 6" | 1/2" Flange | $61.74 | Add to Cart | |
| 868-011-OBPK | 6" | 8" | 1/2" Flange | $114.60 | Add to Cart | |
| 868-024-OBPK | 3-1/4" | 4-1/2" | 9/16" Flange | $64.50 | Add to Cart | |
| 868-025-OBPK | 3-1/4" | 5" | 9/16" Flange | $70.60 | Add to Cart | |
| 868-026-OBPK | 3-1/2" | 4-1/2" | 9/16" Flange | $68.58 | Add to Cart | |
| 868-012-OBPK | 2-3/4" | 3-1/2" | 5/8" Flange | $51.36 | Add to Cart | |
| 868-013-OBPK | 2-3/4" | 3-3/4" | 5/8" Flange | $54.00 | Add to Cart | |
| 868-014-OBPK | 3" | 3-3/4" | 5/8" Flange | $52.50 | Add to Cart | |
| 868-015-OBPK | 3" | 4" | 5/8" Flange | $51.48 | Add to Cart | |
| 868-016-OBPK | 3" | 4-1/2" | 5/8" Flange | $52.20 | Add to Cart | |
| 868-017-OBPK | 3-1/4" | 4-1/2" | 5/8" Flange | $56.04 | Add to Cart | |
| 868-018-OBPK | 3-1/4" | 5" | 5/8" Flange | $60.84 | Add to Cart | |
| 868-019-OBPK | 3-1/2" | 4-1/2" | 5/8" Flange | $61.74 | Add to Cart | |
| 868-020-OBPK | 4" | 5" | 5/8" Flange | $63.12 | Add to Cart | |
| 868-021-OBPK | 4" | 6" | 5/8" Flange | $122.04 | Add to Cart | |
| 868-022-OBPK | 6" | 8" | 5/8" Flange | $122.04 | Add to Cart | |
| 868-033-OBPK | 4" | 5" | 3/4" Flange | $67.80 | Add to Cart | |
| 868-034-OBPK | 4" | 6" | 3/4" Flange | $70.44 | Add to Cart | |
| 868-035-OBPK | 4" | 6" | 1" Flange | $78.60 | Add to Cart | |
| 868-036-OBPK | 6" | 8" | 3/4" Flange | $129.72 | Add to Cart | |
| 868-037-OBPK | 6" | 8" | 1" Flange | $145.44 | Add to Cart |
| Part # | A | B | C |
(2-Pack) Price |
Qty | |
|---|---|---|---|---|---|---|
| 868-038-OBPK | 8" | 10" | 3/4" Flange | $119.94 | Add to Cart | |
| 868-041-OBPK | 10" | 14" | 3/4" Flange | $170.00 | Add to Cart | |
| 868-042-OBPK | 10" | 14" | 1" Flange | $182.40 | Add to Cart | |
| 868-043-OBPK | 10" | 14" | 1-1/4" Flange | $195.28 | Add to Cart | |
| 868-044-OBPK | 10" | 15" | 3/4" Flange | $180.40 | Add to Cart | |
| 868-045-OBPK | 10" | 15" | 1" Flange | $193.22 | Add to Cart | |
| 868-046-OBPK | 10" | 15" | 1-1/4" Flange | $206.56 | Add to Cart | |
| 868-047-OBPK | 11" | 14" | 3/4" Flange | $179.64 | Add to Cart | |
| 868-048-OBPK | 11" | 14" | 1" Flange | $188.96 | Add to Cart | |
| 868-049-OBPK | 11" | 14" | 1-1/4" Flange | $198.70 | Add to Cart | |
| 868-050-OBPK | 11" | 15" | 3/4" Flange | $187.90 | Add to Cart | |
| 868-051-OBPK | 11" | 15" | 1" Flange | $197.60 | Add to Cart | |
| 868-052-OBPK | 11" | 15" | 1-1/4" Flange | $207.50 | Add to Cart | |
| 868-053-OBPK | 11" | 16" | 3/4" Flange | $207.50 | Add to Cart | |
| 868-054-OBPK | 11" | 16" | 1" Flange | $214.92 | Add to Cart | |
| 868-055-OBPK | 11" | 16" | 1-1/4" Flange | $228.72 | Add to Cart | |
| 868-056-OBPK | 12" | 15" | 3/4" Flange | $198.70 | Add to Cart | |
| 868-057-OBPK | 12" | 15" | 1" Flange | $208.50 | Add to Cart | |
| 868-058-OBPK | 12" | 15" | 1-1/4" Flange | $218.96 | Add to Cart | |
| 868-059-OBPK | 12" | 16" | 3/4" Flange | $207.54 | Add to Cart | |
| 868-060-OBPK | 12" | 16" | 1" Flange | $217.86 | Add to Cart | |
| 868-061-OBPK | 12" | 16" | 1-1/4" Flange | $228.42 | Add to Cart | |
| 868-062-OBPK | 12" | 16" | 1-1/2" Flange | $255.26 | Add to Cart |
| Part # | A | B | C | Individual Price | Qty | |
|---|---|---|---|---|---|---|
| 868-063-OB | 14" | 18" | 3/4" Flange | $123.79 | Add to Cart | |
| 868-064-OB | 18" | 24" | 3/4" Flange | $205.60 | Add to Cart | |
| 868-065-OB | 14" | 18" | 1" Flange | $130.99 | Add to Cart | |
| 868-066-OB | 16" | 18" | 1" Flange | $149.12 | Add to Cart | |
| 868-067-OB | 18" | 24" | 1" Flange | $214.96 | Add to Cart | |
| 868-068-OB | 14" | 18" | 1-1/4" Flange | $138.40 | Add to Cart | |
| 868-069-OB | 16" | 18" | 1-1/4" Flange | $157.05 | Add to Cart | |
| 868-070-OB | 18" | 24" | 1-1/4" Flange | $224.51 | Add to Cart | |
| 868-071-OB | 14" | 18" | 1-1/2" Flange | $146.03 | Add to Cart | |
| 868-072-OB | 18" | 24" | 1-1/2" Flange | $234.29 | Add to Cart |
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