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Black Max "Obround" Boiler Handhole & Manhole Gaskets In Stock

 Black-Max® "Obround" Handhole & Manhole Gaskets

Compared to spiral wound gaskets, Black-Max® seals better with our Exfoliated Graphite and has much better recovery properties.The steam boiler market makes extreme demands on gaskets

Black-Max® Series 2000 gaskets are specifically designed and fabricated to provide the superior performance users of

 

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
Item Name: Black Max Obround Gaskets
Description:
 
 

Zero Leakage Under Pressure - Tests by major boiler manufacturers confirm that Black-Max® gaskets seal- with zero leakage-on steam to 450 psi and on cold-water hydro tests up to 1500 psi and Black-Max® withstands working temperatures up to 500 deg Fahrenheit. Rubber gaskets can't withstand that kind of pressure and heat.

  Black-Max® withstands working steam temperatures up to 1,200°F. Rubber gaskets can’t withstand that kind of pressure and heat. Easy Removal and requires no scraping, chiseling or grinding - resulting in lower maintenance costs and less downtime.
Clearly Marked Sizes. Each gasket’s size is permanently marked, so you’ll know immediately that you have the one you need. Maximum Sealing on Rough Surfaces. The proprietary graphite used to manufacture Black-Max® is chemically inert (pH 0 -14) and resistant to chemicals used in treating boiler water.

Shipping Time: Same Day In Stock
Black Max Handhole Gaskets (Sold in 6-Packs)
Part # A B C Weight (6 Pack)
Price
Qty  
867-002-OBPK 2-3/4" 3-1/2" 1/2" Flange 1.00 $52.95 Add to Cart
867-003-OBPK 3" 3-3/4" 1/2" Flange 1.00 $53.95 Add to Cart
867-004-OBPK 2-3/4" 3-3/4" 1/2" Flange 1.00 $54.95 Add to Cart
867-005-OBPK 3" 4" 1/2" Flange 1.00 $55.95 Add to Cart
867-006-OBPK 3" 4-1/2" 1/2" Flange 1.00 $58.95 Add to Cart
867-007-OBPK 3-1/4" 5" 1/2" Flange 1.00 $63.95 Add to Cart
867-008-OBPK 3-1/4" 4-1/2" 1/2" Flange 1.00 $57.95 Add to Cart
867-009-OBPK 3-1/2" 4-1/2" 1/2" Flange 1.00 $61.95 Add to Cart
867-010-OBPK 4" 6" 1/2" Flange 1.00 $70.95 Add to Cart
867-011-OBPK 6" 8" 1/2" Flange 1.00 $130.95 Add to Cart
867-012-OBPK 2-3/4" 3-1/2" 5/8" Flange 1.00 $58.95 Add to Cart
867-013-OBPK 2-3/4" 3-3/4" 5/8" Flange 1.00 $61.95 Add to Cart
867-014-OBPK 3" 3-3/4" 5/8" Flange 1.00 $59.95 Add to Cart
867-015-OBPK 3" 4" 5/8" Flange 1.00 $58.95 Add to Cart
867-016-OBPK 3" 4-1/2" 5/8" Flange 1.00 $59.95 Add to Cart
867-017-OBPK 3-1/4" 4-1/2" 5/8" Flange 1.00 $63.95 Add to Cart
867-018-OBPK 3-1/4" 5" 5/8" Flange 1.00 $69.95 Add to Cart
867-019-OBPK 3-1/2" 4-1/2" 5/8" Flange 1.00 $67.95 Add to Cart
867-020-OBPK 4" 5" 5/8" Flange 1.00 $70.95 Add to Cart
867-021-OBPK 4" 6" 5/8" Flange 1.00 $71.95 Add to Cart
867-022-OBPK 6" 8" 5/8" Flange 1.00 $138.95 Add to Cart
867-023-OBPK 3" 4" 9/16" Flange 1.00 $58.95 Add to Cart
867-024-OBPK 3-1/4" 4-1/2" 9/16" Flange 1.00 $67.95 Add to Cart
867-025-OBPK 3-1/4" 5" 9/16" Flange 1.00 $69.95 Add to Cart
867-026-OBPK 3-1/2" 4-1/2" 9/16" Flange 1.00 $67.95 Add to Cart
867-027-OBPK 3" 4" 3/4" Flange 1.00 $62.95 Add to Cart
867-028-OBPK 3" 4-1/2" 3/4" Flange 1.00 $63.95 Add to Cart
867-029-OBPK 3-1/4" 4-1/2" 3/4" Flange 1.00 $70.95 Add to Cart
867-030-OBPK 3" 5" 3/4" Flange 1.00 $66.95 Add to Cart
867-031-OBPK 3-1/4" 5" 3/4" Flange 1.00 $75.95 Add to Cart
867-032-OBPK 3-1/2" 4-1/2" 3/4" Flange 1.00 $73.95 Add to Cart
867-033-OBPK 4" 5" 3/4" Flange 1.00 $77.95 Add to Cart
867-034-OBPK 4" 6" 3/4" Flange 1.00 $80.95 Add to Cart
867-035-OBPK 4" 6" 1" Flange 1.00 $89.95 Add to Cart
867-036-OBPK 6" 8" 3/4" Flange 1.00 $147.95 Add to Cart
867-037-OBPK 6" 8" 1" Flange 1.00 $165.95 Add to Cart
Black Max Manhole Gaskets (Sold in 2-Packs)
Part # A B C Weight (2-Pack)
Price
Qty  
867-038-OBPK 8" 10" 3/4" Flange 0.50 $127.95 Add to Cart
867-039-OBPK 8" 10" 1" Flange 0.50 $135.95 Add to Cart
867-040-OBPK 8" 10" 1-1/4" Flange 0.50 $167.95 Add to Cart
867-041-OBPK 10" 14" 3/4" Flange 0.50 $184.95 Add to Cart
867-042-OBPK 10" 14" 1" Flange 0.50 $198.95 Add to Cart
867-043-OBPK 10" 14" 1-1/4" Flange 0.50 $213.95 Add to Cart
867-044-OBPK 10" 15" 3/4" Flange 0.50 $196.95 Add to Cart
867-045-OBPK 10" 15" 1" Flange 0.50 $210.95 Add to Cart
867-046-OBPK 10" 15" 1-1/4" Flange 0.50 $226.95 Add to Cart
867-047-OBPK 11" 14" 3/4" Flange 0.50 $195.95 Add to Cart
867-048-OBPK 11" 14" 1" Flange 0.50 $206.95 Add to Cart
867-049-OBPK 11" 14" 1-1/4" Flange 0.50 $217.95 Add to Cart
867-050-OBPK 11" 15" 3/4" Flange 0.50 $204.95 Add to Cart
867-051-OBPK 11" 15" 1" Flange 0.50 $215.95 Add to Cart
867-052-OBPK 11" 15" 1-1/4" Flange 0.50 $227.95 Add to Cart
867-053-OBPK 11" 16" 3/4" Flange 0.50 $220.95 Add to Cart
867-054-OBPK 11" 16" 1" Flange 0.50 $235.95 Add to Cart
867-055-OBPK 11" 16" 1-1/4" Flange 0.50 $251.95 Add to Cart
867-056-OBPK 12" 15" 3/4" Flange 0.50 $217.95 Add to Cart
867-057-OBPK 12" 15" 1" Flange 0.50 $228.95 Add to Cart
867-058-OBPK 12" 15" 1-1/4" Flange 0.50 $240.95 Add to Cart
867-059-OBPK 12" 16" 3/4" Flange 0.50 $227.95 Add to Cart
867-060-OBPK 12" 16" 1" Flange 0.50 $239.95 Add to Cart
867-061-OBPK 12" 16" 1-1/4" Flange 0.50 $251.95 Add to Cart
867-062-OBPK 12" 16" 1-1/2" Flange 0.50 $281.95 Add to Cart
Black Max Manhole Gaskets (Sold Individually)
Part # A B C Weight Individual Price Qty  
867-063-OB 14" 18" 3/4" Flange 0.25 $141.95 Add to Cart
867-064-OB 18" 24" 3/4" Flange 0.25 $234.95 Add to Cart
867-065-OB 14" 18" 1" Flange 0.25 $149.95 Add to Cart
867-066-OB 16" 18" 1" Flange 0.25 $169.95 Add to Cart
867-067-OB 18" 24" 1" Flange 0.25 $244.95 Add to Cart
867-068-OB 14" 18" 1-1/4" Flange 0.25 $157.95 Add to Cart
867-069-OB 16" 18" 1-1/4" Flange 0.25 $178.95 Add to Cart
867-070-OB 18" 24" 1-1/4" Flange 0.25 $255.95 Add to Cart
867-071-OB 14" 18" 1-1/2" Flange 0.25 $166.95 Add to Cart
867-072-OB 18" 24" 1-1/2" Flange 0.25 $266.95 Add to Cart