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

Description:

 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 have come to expect – but at higher operating pressures and temperatures. These branded, engineered gaskets provide a cost-effective, reliable, and easy to use alternative to tacky-cloth, spiral wound and expanded PTFE gaskets.

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

 

Ideal Applications for Black-Max®

Steam pressure Vessels  -  Liquid Treatment Vessels

Hot Water Heaters  -  Compressed air Tanks 

De-mineralizers  -  Dryer cans in paper mills

Steam humidifers  -  Water towers 

Water purifiers  -  Water softeners

Make-up tanks  - De-aerators

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.

 Field tests by major end-users confirm that Black-Max® gaskets seal with zero leakage in steam and in cold-water hydro tests. Black-Max® withstands working steam temperatures up to 1,200°F. Rubber gaskets can’t withstand that kind of pressure and heat. Easy Removal. Removal is easy 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.

Lead Time: Black-Max Hand Hole Sizes are SOLD in Qty. 6 Packs, 2 Packs OR Individually as specified (Vacuum Sealed) packets. All Black-Max® are made to order and are not returnable unless found defective.
Black Max Handhole Gaskets (Sold in 6-Packs)
Part # A B C Weight (6 Pack)
Price
Qty  
867-001-OBPK 3-1/2" 4-1/2" 3/8" Flange 2.50 $42.99 Add to Cart
867-002-OBPK 2-3/4" 3-1/2" 1/2" Flange 2.50 $42.99 Add to Cart
867-003-OBPK 3" 3-3/4" 1/2" Flange 2.50 $42.99 Add to Cart
867-004-OBPK 2-3/4" 3-3/4" 1/2" Flange 2.50 $42.99 Add to Cart
867-005-OBPK 3" 4" 1/2" Flange 2.50 $42.99 Add to Cart
867-006-OBPK 3" 4-1/2" 1/2" Flange 2.50 $42.99 Add to Cart
867-007-OBPK 3-1/4" 5" 1/2" Flange 2.50 $42.99 Add to Cart
867-008-OBPK 3-1/4" 4-1/2" 1/2" Flange 2.50 $42.99 Add to Cart
867-009-OBPK 3-1/2" 4-1/2" 1/2" Flange 2.50 $42.99 Add to Cart
867-010-OBPK 4" 6" 1/2" Flange 2.50 $47.95 Add to Cart
867-011-OBPK 6" 8" 1/2" Flange 2.50 $91.50 Add to Cart
867-012-OBPK 2-3/4" 3-1/2" 5/8" Flange 2.50 $42.99 Add to Cart
867-013-OBPK 2-3/4" 3-3/4" 5/8" Flange 2.50 $42.99 Add to Cart
867-014-OBPK 3" 3-3/4" 5/8" Flange 2.50 $42.99 Add to Cart
867-015-OBPK 3" 4" 5/8" Flange 2.50 $42.99 Add to Cart
867-016-OBPK 3" 4-1/2" 5/8" Flange 2.50 $42.99 Add to Cart
867-017-OBPK 3-1/4" 4-1/2" 5/8" Flange 2.50 $42.99 Add to Cart
867-018-OBPK 3-1/4" 5" 5/8" Flange 2.50 $42.99 Add to Cart
867-019-OBPK 3-1/2" 4-1/2" 5/8" Flange 2.50 $42.99 Add to Cart
867-020-OBPK 4" 5" 5/8" Flange 2.50 $47.95 Add to Cart
867-021-OBPK 4" 6" 5/8" Flange 2.50 $47.95 Add to Cart
867-022-OBPK 6" 8" 5/8" Flange 2.50 $96.50 Add to Cart
867-023-OBPK 3" 4" 9/16" Flange 2.50 $42.99 Add to Cart
867-024-OBPK 3-1/4" 4-1/2" 9/16" Flange 2.50 $42.99 Add to Cart
867-025-OBPK 3-1/4" 5" 9/16" Flange 2.50 $42.99 Add to Cart
867-026-OBPK 3-1/2" 4-1/2" 9/16" Flange 2.50 $42.99 Add to Cart
867-027-OBPK 3" 4" 3/4" Flange 2.50 $42.99 Add to Cart
867-028-OBPK 3" 4-1/2" 3/4" Flange 2.50 $42.99 Add to Cart
867-029-OBPK 3-1/4" 4-1/2" 3/4" Flange 2.50 $42.99 Add to Cart
867-030-OBPK 3" 5" 3/4" Flange 2.50 $42.99 Add to Cart
867-031-OBPK 3-1/4" 5" 3/4" Flange 2.50 $42.99 Add to Cart
867-032-OBPK 3-1/2" 4-1/2" 3/4" Flange 2.50 $42.99 Add to Cart
867-033-OBPK 4" 5" 3/4" Flange 2.50 $47.95 Add to Cart
867-034-OBPK 4" 6" 3/4" Flange 2.50 $47.95 Add to Cart
867-035-OBPK 4" 6" 1" Flange 2.50 $47.95 Add to Cart
867-036-OBPK 6" 8" 3/4" Flange 2.50 $96.50 Add to Cart
867-037-OBPK 6" 8" 1" Flange 2.50 $96.50 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 2.50 $81.50 Add to Cart
867-039-OBPK 8" 10" 1" Flange 2.50 $86.95 Add to Cart
867-040-OBPK 8" 10" 1-1/4" Flange 2.50 $94.50 Add to Cart
867-041-OBPK 10" 14" 3/4" Flange 2.50 $118.50 Add to Cart
867-042-OBPK 10" 14" 1" Flange 2.50 $128.50 Add to Cart
867-043-OBPK 10" 14" 1-1/4" Flange 2.50 $136.50 Add to Cart
867-044-OBPK 10" 15" 3/4" Flange 2.50 $125.50 Add to Cart
867-045-OBPK 10" 15" 1" Flange 2.50 $134.50 Add to Cart
867-046-OBPK 10" 15" 1-1/4" Flange 2.50 $144.50 Add to Cart
867-047-OBPK 11" 14" 3/4" Flange 2.50 $124.90 Add to Cart
867-048-OBPK 11" 14" 1" Flange 2.50 $131.50 Add to Cart
867-049-OBPK 11" 14" 1-1/4" Flange 2.50 $138.50 Add to Cart
867-050-OBPK 11" 15" 3/4" Flange 2.50 $130.98 Add to Cart
867-051-OBPK 11" 15" 1" Flange 2.50 $138.50 Add to Cart
867-052-OBPK 11" 15" 1-1/4" Flange 2.50 $145.50 Add to Cart
867-053-OBPK 11" 16" 3/4" Flange 2.50 $140.50 Add to Cart
867-054-OBPK 11" 16" 1" Flange 2.50 $150.50 Add to Cart
867-055-OBPK 11" 16" 1-1/4" Flange 2.50 $160.73 Add to Cart
867-056-OBPK 12" 15" 3/4" Flange 2.50 $138.50 Add to Cart
867-057-OBPK 12" 15" 1" Flange 2.50 $146.50 Add to Cart
867-058-OBPK 12" 15" 1-1/4" Flange 2.50 $153.50 Add to Cart
867-059-OBPK 12" 16" 3/4" Flange 2.50 $145.50 Add to Cart
867-060-OBPK 12" 16" 1" Flange 2.50 $152.50 Add to Cart
867-061-OBPK 12" 16" 1-1/4" Flange 2.50 $160.50 Add to Cart
867-062-OBPK 12" 16" 1-1/2" Flange 2.50 $179.50 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 0.50 $90.50 Add to Cart
867-064-OB 18" 24" 3/4" Flange 0.50 $149.50 Add to Cart
867-065-OB 14" 18" 1" Flange 0.50 $95.50 Add to Cart
867-066-OB 16" 18" 1" Flange 0.50 $108.60 Add to Cart
867-067-OB 18" 24" 1" Flange 0.50 $156.50 Add to Cart
867-068-OB 14" 18" 1-1/4" Flange 0.50 $100.50 Add to Cart
867-069-OB 16" 18" 1-1/4" Flange 0.50 $114.50 Add to Cart
867-070-OB 18" 24" 1-1/4" Flange 0.50 $163.50 Add to Cart
867-071-OB 14" 18" 1-1/2" Flange 0.50 $106.50 Add to Cart
867-072-OB 18" 24" 1-1/2" Flange 0.50 $168.50 Add to Cart