Get in Touch

logo

Dobson Gaskets is a leading UK manufacturer of gaskets and sealing products

Call Us Now

+44 (0) 1535 607257
 

Address

E Dobson and Co [Gaskets] Ltd
Unit 1
Holme Mill Ind Estate
Fell Lane
Keighley
West Yorkshire
BD22 6BN

Call Us Now

+44 (0) 1535 607257

Call Us Now

+44 (0) 1535 607257
 

Opening times

Mon - Thur 8.00 - 17.00
Fri 8.00 - 16.00

GASKET APPLICATIONS
Gaskets for Pumps

Gaskets are a crucial component of pumps to prevent leakage and maintain the pressure within the pump. Without the use of the correct gaskets, pumps can lose efficiency or fail completely. It is essential to select the right gasket material for the specific application to ensure appropriate sealing and prevent leaks.

Pump gaskets should be inspected regularly and replaced if necessary to maintain the pump's efficiency. Neglecting to replace worn or damaged gaskets can result in costly downtime and repairs. Our technical team help customers understand factors such as the temperature, pressure, and chemical compatibility of the fluid being pumped in order to select the right materials.

Gasket Products Gasket Materials

Rubber gaskets

Rubber gaskets

Often used to seal flanges and prevent leaks between two flat surfaces, with a range of composites suitable for resistance to oils, fuels, and hydraulic fluids.

 

Rubber Gaskets

PTFE (Teflon) Gaskets

PTFE (Teflon) Gaskets

PTFE is made of a synthetic fluoropolymer known for its excellent chemical resistance. It is often used in pumps handling corrosive fluids.

 

PTFE Gaskets

Spiral-wound gaskets

Spiral-wound gaskets

Predominantly used to seal pump flanges in high-pressure and high-temperature applications. The composition provides excellent sealing and recovery properties.

 

Spiral-woundGaskets

Metal gaskets

Metal gaskets

Metal and metal composite gaskets, used for pump valves and flanges and mechanical seals, are available in a wide range of configurations and materials.

 

Metal Gaskets

Non Asbestos Gaskets

Non Asbestos Gaskets

Non-asbestos gaskets are preferred for pumps as they are safer, more environmentally friendly and have better heat and chemical resistance than other gaskets.

 

Non Asbestos Gaskets

Talk to a Technician

Talk to a Technician

Our highly experienced technicians can advise you on the best sheet materials and manufacturing processes for a wide range of gasket applications.

 

Get in Touch

Pump Gasket Certifications

Gaskets used in pumps may be required to meet certain standards or certifications. Some examples of gasket certifications that may be relevant for pump applications include:

  • ASME B16.20: This standard specifies the dimensions and tolerances for gaskets used in piping flanges.
  • API 6A: This standard covers the design and performance requirements for gaskets used in oilfield equipment.
  • NSF/ANSI 61: This standard covers the health effects of drinking water system components, including gaskets.
  • WRAS: Approval indicates compliance for water fitting or materials for use with potable water.
  • FDA 21 CFR 177: This regulation covers the materials that may be used to manufacture gaskets and other components that come into contact with food.

Packing Materials Used in Pumps

Pump gasket packing materials are used to seal the gap between the moving and the stationary parts of a pump, such as the pump shaft and the stuffing box. Some common types of packing materials include:

  • Non-Asbestos:  Non-asbestos gaskets have replaced harmful asbestos gaskets and offer comparable sealing properties and resistance to heat and chemicals. Non-asbestos gaskets are commonly used in water and steam pumping systems.
  • Graphite: Graphite packing is made of pure graphite fibres and is used in high-temperature and high-pressure applications. It has good resistance to heat and chemicals and is often used in pumps handling steam or hot oil.
  • PTFE (Teflon): PTFE packing is made of a synthetic fluoropolymer and is known for its excellent chemical resistance. It is often used in pumps handling corrosive fluids.
  • Kevlar:  Kevlar packing is made of synthetic fibre and is known for its high strength and abrasion resistance. It is often used in pumps handling abrasive fluids.
  • Fibreglass:  Fiberglass packing is made of woven fibreglass fibres and is used in high-temperature and high-pressure applications. It has good resistance to heat and chemicals and is often used in pumps handling steam or hot oil.

To ensure proper sealing and to prevent leaks, it is important to consider factors such as temperature, pressure, and chemical compatibility of the fluid being pumped when choosing packing materials. Our technical team are on hand to help in this process.

View Gland Materials

 gasket materials

Types of Pumps

Our pump gasket manufacturing processes take into consideration various factors such as the fluid being pumped, the required flow rate, and the operating pressure and temperature. We have manufactured gaskets and seals for the following types of pumps:

  • Centrifugal pumps
  • Positive displacement pumps
  • Submersible pumps
  • Diaphragm pumps
  • Peristaltic pumps
  • Reciprocating pumps

Types of Fluids Pumped

It is important to select a gasket material that is compatible with the specific fluid being pumped, taking into consideration factors such as the fluid's viscosity, density, corrosiveness, and flammability. We manufacture gaskets and seals for the following types of liquids:

  • Water
  • Oil
  • Chemicals
  • Food products
  • Slurries
  • Gases

Sealing Issues with Pumps

There are several common problems that can occur with the sealing of pumps, including:

  • Leaks: Leaks can occur if the gasket or packing material is not properly sealing the gap between the moving and stationary parts of the pump. This can result in a loss of efficiency and can lead to damage to the pump.
  • Wearing out of gaskets: Gaskets can wear out over time due to the constant movement and pressure within the pump. This can lead to leaks and a loss of efficiency.
  • Incorrect gasket material: Using the wrong gasket material for the specific application can result in failures. We help customers choose the appropriate gasket material based on factors such as the temperature, pressure, and chemical compatibility of the fluid being pumped.
  • Improper installation: If a gasket is not installed correctly, it may not seal properly and can result in leaks.
  • Damage: Gaskets can become damaged during installation or operation, leading to leaks.

To prevent these problems, it is important to regularly inspect and maintain the gaskets and packing materials in pumps and to replace them as necessary. It is also important to ensure that the correct gasket material is selected for the specific application and that the gaskets are installed correctly.