Flange Seals | McMaster-Carr

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For Flange ANSI Class

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Maximum Temperature

Number of Bolt Holes

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Maximum Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

For Use With

Grooved-End Pipe Fittings

Low Stress-to-Seal Flanges

Hardness Rating

Minimum Temperature

Performance

Refrigerant Resistant

Tube OD

Hardness

Environment

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Width

Specifications Met

2,031 Products

Pipe Gaskets

High-Temperature Pipe Gaskets

High-Temperature Metallic Pipe Gaskets

Made of carbon steel, stainless steel, and graphite to endure heat and stress

57 products

High-Temperature Graphite Pipe Gaskets

Withstand heat as high as 750° F and pressure up to 1,000 psi

38 products

High-Temperature Chemical-Resistant Metallic Pipe Gaskets

Carbon steel surrounds a PTFE sealing element to withstand heat and harsh chemicals

36 products

High-Temperature Silicone Rubber Pipe Gaskets

Withstand heat up to 450° F while resisting water and salts

15 products

Long-Life High-Temperature Metallic Pipe Gaskets

A gap stops the inner seal from squeezing inward and contaminating the line

30 products

Easy-Install High-Temperature Metallic Pipe Gaskets

Tines easily fit around flange bolts to align them with pipe openings

6 products

High-Temperature Steam-Resistant Metallic Pipe Gaskets

Made of 110 copper to handle steam applications up to 600° F

14 products

High-Temperature Oil-Resistant Carbon Fiber-Reinforced Buna-N Pipe Gaskets

Ideal for oily applications as hot as 650° F

14 products

Ultra-High-Temperature Vermiculite Pipe Gaskets

Withstand the highest temperatures up to 1,800° F

10 products

High-Temperature Buna-N/Graphite Pipe Gaskets

Withstand temperatures up to 650° F

13 products

Oil-Resistant Pipe Gaskets with Bolt Holes

Oil-Resistant Compressible Buna-N Pipe Gaskets with Bolt Holes

Ensure a tight seal that stands up to oil, water, and salts

49 products

Oil-Resistant Compressible Buna-N Pipe Gaskets with Bolt Holes for Dissimilar Metals

The plastic washers and sleeves prevent corrosion when joining different metals

13 products

Oil-Resistant Aramid-Reinforced Buna-N Pipe Gaskets with Bolt Holes

Resist oil, water, and aliphatic hydrocarbons such as ethylene

72 products

Oil-Resistant Aramid-Reinforced Buna-N Pipe Gaskets with Bolt Holes and Fasteners

Furnished with nuts and bolts to create a connection between pipe flanges

69 products

Water- and Steam-Resistant Pipe Gaskets with Bolt Holes

Water- and Steam-Resistant EPDM Pipe Gaskets with Bolt Holes

Stand up to water, steam, and salt water

82 products

Water- and Steam-Resistant EPDM Pipe Gaskets with Bolt Holes for Dissimilar Metals

The plastic washers and sleeves prevent corrosion when joining different metals

7 products

Water-Resistant Aramid-Reinforced SBR Pipe Gaskets with Bolt Holes for Uneven Surfaces

Absorb water and swell to fill gaps on uneven flanges

12 products

Water-Resistant Aramid-Reinforced SBR Pipe Gaskets with Bolt Holes

The blend of rubber and synthetic fibers resists water and inert gases

29 products

Water- and Steam-Resistant Pipe Gaskets

Water- and Steam-Resistant EPDM Pipe Gaskets

Stand up to water, steam, and salt water

109 products

Water- and Abrasion-Resistant SBR Pipe Gaskets

Resist abrasion better than gaskets blended with synthetic fibers

13 products

Water- and Refrigerant-Resistant Neoprene Pipe Gaskets

Resist water, refrigerants, and salts

13 products

Water-Resistant Aramid-Reinforced SBR Pipe Gaskets

The blend of rubber and synthetic fibers resists water and inert gases

30 products

High-Temperature Pipe Gaskets with Bolt Holes

High-Temperature Graphite Pipe Gaskets with Bolt Holes

Withstand heat as high as 750° F and pressure up to 1,000 psi

31 products

High-Temperature Silicone Rubber Pipe Gaskets with Bolt Holes

Withstand heat up to 450° F while resisting water and salts

15 products

High-Temperature Oil-Resistant Carbon Fiber-Reinforced Buna-N Pipe Gaskets with Bolt Holes

Ideal for oily applications as hot as 650° F

15 products

High-Temperature Buna-N/Graphite Pipe Gaskets with Bolt Holes

Blended with graphite to endure temperatures up to 650° F

12 products

Ultra-High-Temperature Vermiculite Pipe Gaskets with Bolt Holes

Withstand the highest temperatures up to 1,800° F

9 products

Chemical-Resistant Pipe Gaskets

Ultra-Chemical-Resistant Compressible Reinforced ePTFE Pipe Gaskets

Ensure a tighter seal than pure PTFE, with a stainless steel insert for added strength

8 products

Ultra-Chemical-Resistant PTFE Pipe Gaskets

Pure PTFE won't stick or react to chemicals

45 products

Ultra-Chemical-Resistant High-Strength PTFE Pipe Gaskets

Blended with fiberglass so they won't thin out when compressed

14 products

Ultra-Chemical-Resistant Compressible ePTFE Pipe Gaskets

Ensure a tighter seal than pure PTFE

50 products

Chemical-Resistant Viton Fluoroelastomer Pipe Gaskets

Resist wear from acids, alcohols, oils, transmission fluid, and more

29 products

Ultra-Chemical-Resistant Food and Beverage Compressible ePTFE Pipe Gaskets

Made of FDA-listed materials to prevent contaminating food and beverage lines

50 products

Ultra-Chemical-Resistant Reinforced PTFE Pipe Gaskets

Made of pure PTFE with a stainless steel insert for increased strength

28 products

Ultra-Chemical-Resistant Compressible ePTFE Pipe Gaskets for Low Stress-to-Seal Flanges

Seal under low torque to prevent overtightening

24 products

Chemical-Resistant Pipe Gaskets with Bolt Holes

Chemical-Resistant Viton Fluoroelastomer Pipe Gaskets with Bolt Holes

Resist wear from acids, alcohols, oils, transmission fluid, and more

29 products

Ultra-Chemical-Resistant Compressible ePTFE Pipe Gaskets with Bolt Holes

Ensure a tighter seal than pure PTFE

44 products

Ultra-Chemical-Resistant Food and Beverage Compressible ePTFE Pipe Gaskets with Bolt Holes

Made of FDA-listed materials to prevent contaminating food and beverage lines

44 products

Ultra-Chemical-Resistant PTFE Pipe Gaskets with Bolt Holes

Pure PTFE won't stick or react to chemicals

44 products

Ultra-Chemical-Resistant High-Strength PTFE Pipe Gaskets with Bolt Holes

Blended with fiberglass so they won't thin out when compressed

22 products

Ultra-Chemical-Resistant Compressible ePTFE Pipe Gaskets with Bolt Holes for Low Stress-to-Seal Flanges

Form a seal even under the low torque needed for fiberglass flanges

25 products

Ultra-Chemical-Resistant Compressible Reinforced ePTFE Pipe Gaskets with Bolt Holes

Ensure a tighter seal than pure PTFE, with a stainless steel insert for added strength

7 products

Oil-Resistant Pipe Gaskets

Oil-Resistant Compressible Buna-N Pipe Gaskets

Ensure a tight seal that stands up to oil, water, and salts

22 products

Oil-Resistant Aramid-Reinforced Buna-N Pipe Gaskets

Resist oil, water, and aliphatic hydrocarbons such as ethylene

72 products

Oil-Resistant Aramid-Reinforced Buna-N Pipe Gaskets with Fasteners

Furnished with nuts and bolts to create a connection between pipe flanges

15 products

Gaskets for Grooved-End Pipe Fittings

Water-Resistant EPDM Gaskets for Grooved-End Pipe Fittings

Form a snug seal on grooved-end pipe fittings in wet environments

5 products

Oil-Resistant Buna-N Gaskets for Grooved-End Pipe Fittings

Create a tight seal on grooved-end pipe fittings exposed to oil

5 products

Other Products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

428 products

Drain Gaskets

Create a watertight seal between your drain and fixture without the mess of plumber's putty

3 products

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

30 products

Gasket Tape

Seal openings such as those around windows, enclosures, and pipe flanges to prevent leaks

94 products

Gasket Makers

Seal irregular shapes and tiny crevices by applying a bead that hardens into a gasket

60 products

Gasket Sealants

Seal gaskets on metal parts

12 products

Contact Adhesives

Apply adhesive, air dry, and bring surfaces together to bond

9 products