GASKETS & CUT RUBBER

stripping

UIP carries a comprehensive line of commercial and specification grade sheet rubber material and gaskets in ring style and full face.  With our high-precision CNC Knife cutting machine, we can quickly produce quality custom gaskets in a wide variety of materials.  We also have die cut and lathing capabilities in addition to hand-cut strips in custom lengths.   PSA backing options are available.
Call us today to learn more about our extensive gasketing capabilities.

Each type of gasket material has its advantages suited to specific applications.  Be sure to discuss your application needs, including environmental and temperature specific requirements, before ordering and installing. 

Ask the experts! 1-800-257-2467 | sales@uipintl.com

cut rubber and gaskets
Tan Pure Gum Rubber Gaskets
White FDA Approved Gaskets
Neoprene Gaskets

Natural Tan Pure Gum Rubber Gaskets

White FDA Food Grade Rubber Gaskets

Viton®, Nitrile & Neoprene Rubber Gaskets

SBR Red Rubber Gaskets & High Temperature Red Silicone Gaskets

NON-METALLIC GASKETS

Non Metallic gaskets can be used in a wide range of fluid sealing applications. These gasket are suitable for many various temperature and fluid pressure combinations and are typically the most economical option of all gasketing materials. Nonmetallic gaskets are available as ring type, full face or can be customized to fix specialty flanges such as rectangular and other various shapes. UIP has the technology to automate just about any shape required for your application. Materials are available with widths up to 60 inches and sheet lengths up to 50 feet (depending on the product).  For oversized gaskets, UIP has the capability of creating custom segmented gaskets.

Rubber Gasket Materials

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sheet rubber roll economy neoprene
Sheet Rubber
red SBRrubber sheet
tan pure gum rubber

Butyl Rubber

EPDM Rubber

SBR Red Rubber

Tan Pure Gum Rubber

Nitrile Rubber
neoprene sheet
White FDA Sheet Rubber
Nitrile Sheet (BUNA N) #93

Nitrile Rubber

Neoprene Rubber

White Nitrile Rubber

(Food Grade)

FKM/Viton® Rubber

butyl sheet rubber
CSM (Hypalon) Rubber
red rubber sheet
neoprene cloth inserted CI rubber

Buna N Rubber

CSM Rubber

Red Silicone Rubber

CI (cloth inserted) Rubber

METALLIC GASKETS

Metal gaskets are used for ring type joints in high-pressure applications, such as oil and gas supply production.  RTJs are also used on valves and pipework, assemblies in refineries and other process industries.  They seal by an in initial line contact or a wedging action as the compressive forces are applied.  Metal and ring type gaskets are available with oval and octagonal cross sections.  Octagonal include the BX type designed to seal pressure up to 20,000 psi in accordance with the API 6A pressure ratings.

spiral wound gaskets

COMPOSITE GASKETS

Composite gaskets are a combination of metal and non-metal material based on service requirements.  Spiral wound, metal jacketed and Kamprofile gaskets are well known in the composite category. They are used in a wide range of pressure and temperature services. Composite gaskets are cost effective as compared to metal gaskets, but careful handling is required. Composite gaskets are used are used on raised face, male-female, and tongue and groove flanges.

Klingersil 4401 gaskets

UIP has the technology to automate just about any shape required for your application. Nonmetallic materials are available in widths up to 60 inches and sheet lengths of up to 50 feet depending on the product. For oversized gaskets, UIP has the capability of creating custom segmented gaskets for ease of handling and installation.  In order to ensure a successful seal many factors must be considered. The gasket material must be resilient and rugged enough to overcome any irregularities in the mating surfaces; resist extrusion and creep; and prevent blowouts under various operating conditions. Material thickness is also important when choosing a non-metallic gasket. The thinnest material that a flange application will allow should be considered however, the material should be thick enough to compensate for any surface irregularities or flange parallelism. Thinner gaskets can handle an increased level of bolt load and will reduce the amount of bolt stress that is lost due to relaxation. Additionally, thinner material reduces the gasket area which limits the amount exposed to attack from internal pressure and/or an aggressive application.
UIP suggests contacting one of our knowledgeable team members to select the correct material for your application. There are a number of gasketing materials available and new materials emerge often. Material specifications are also available in our literature and on our website to assist in proper material selection.

In order to ensure a successful seal many factors must be considered. The gasket material must be resilient and rugged enough to overcome any irregularities in the mating surfaces, resist extrusion, creep, and prevent blowouts under various operating conditions.

Material thickness is also important when choosing a non-metallic gasket. The thinnest material that a flange application will allow should be considered however, the material should be thick enough to compensate for any surface issues or flange parallelism. Thinner gaskets can handle an increased level of bolt load and will reduce the about of bolt stress that is lost due to relaxation. Additionally, thinner material lowers the gasket area which reduced the amount exposed to attack from internal pressure and/or an aggressive application.

UIP suggests contacting one of our knowledgeable team members when choosing the correct material for your application. This is due to the extensive number of gasketing materials available and considering that new materials continue to emerge in the market. Material specification are also available in our literature and on our website to assist in proper material selection.

In addition to choosing the correct gasketing material, proper installation is crucial in order to ensure a leak free BFJA (Bolt Flange Joint Assemblies). Most commonly when a there are leaks in a flange, it is assumed that it is due to a “gasket failure” however, that is rarely the case. Majority of the time it is a result of improper installation. Follow these basic guidelines when installing a gasket in a BFJA.

  • Before installation, the gasket should be properly inspected to ensure it is in good condition. The dimensions should be verified including the ID, OD, Bolt pattern (If applicable), and the thickness of the gasket. A visual inspection of the flange sealing surface should also be done to ensure it is free of any debris, lubricants and/or defects. All fasteners should meet the requirements including material, length, thread pitch and nut thickness. Lubricants should not be used to temporarily hold a gasket in place.
  • Align the gasket properly to be concentric with the flange ID and avoid protrusion into piping flow path, ensure gasket remains in proper place during assembly, and that flanges are properly aligned and parallel to each other.
  • Bolts must be tightened in incremental steps to arrive at the target stress level using a properly calibrated load control device such as a torque wrench, a stud tensioner or a similar device. During the incremental torqueing steps, it is good practice to measure the flange gap at a minimum of four points at 90 degrees to each other around the flange OD at each step to assure even loading.

Note: For soft gasket materials, one of the major factors is the creep relaxation of the gasket. Creep effects are accentuated at elevated temperatures, with the net result that the compressive load on the gasket is reduced, thus increasing the possibility of a leak. Consequently, UIP International, Inc recommends that fasteners should be re-torqued (to the recommended torque at ambient temperature before the process is energized) 24 hours after the initial assembly.

**UIP strongly encourages the reader to reference FSA/ESA document (FSA0009) FSA/ESA Gasket Installation Procedures – Assuring Joint Integrity and Maximum Safety which is adapted from PCC-1.

Pipe Gaskets

The most common type of gaskets are designed to seal flanged joints of piping systems.  The pipe flange gasket is typically round in configuration with an Inside Diameter (ID); Outside Diameter (OD) and may have a Hole Patterns or Bolt (Hole) Circles.

Standard Sizes and Dimensions

Pipe Gaskets are made to fit and seal pipes and flanges.  The most common standards are ASA/ANSI (USA); PN/DIN (European); BS10 (British/Australian) and JIS/KS (Japanese/Korean).

  • Gasket Tables referenced below for ANSI Standard Flanges (ASA) – To BS EN 12560-1:2001
  • Gasket Tables referenced below for PN Designated Flanges (DIN) – To BS EN 1514-1:1967

Pipe gaskets typically follow the standard size and dimensions.  But for those applications outside the standards UIP International may custom make your gaskets to your sample or specifications.

UIP International supplies pipe gaskets in a wide range of materials from an extensive inventory.  Our gasket cutting capabilities include wood and steel rule dies on Clicker presses; hand cut and custom made stripping (for door seals) and a computer assisted high-speed oscillating knife cutter for large production and high precision capabilities.
Applications include food grade gaskets, high temperature gaskets, meter gaskets, oil gaskets, valve gaskets and many more.

 

Full-Face and Ring Style Gaskets

Pipe Gaskets can be either Full-Faced or Ringed. Full-face gaskets having bolt holes between the ID and OD that cover the full face of a flat flange.  Ring Type or Inner Bolt Circle gaskets sit inside the bolts fastening the pipe flanges on raised-face joints.

Click HERE for complete Gasket Dimensions

 

Material Selection

Gaskets make the best seal using the thinnest material available for an application.  Given the flange face is smooth and without defects, the thinner material will seal best and handle a higher internal pressure of the media being conveyed by the pipe.  Thicker materials are utilized where some deformity in the flange face exists and the extra material will flow into the deformities.

UIP International offers many types of gasket materials for a vast range of uses.  It is best to consult with our experienced personnel for the best material for your application.  We have a wide range of sheet rubber in rolls and slabs; non-asbestos; Grafoil, Teflon, PTFE and other non-metallic fiber sheets in various thicknesses and durometers (hardness).

We also distribute metallic gaskets including Spiral-wound, Ring Joint and Kammprofile.

Call us today to find out more about our extensive capabilities.