DXP Pacific Industrial Pumps

Mechanical Seals by John Crane

John Crane is one of the world’s leading manufacturers, suppliers, and servicers of mechanical seals. This company has a rich history dating back to 1917 when John Crane (the man behind the name) founded the Crane Packing Company in England. The company continued to evolve with new mechanical innovations, including the world’s first automotive mechanical seal in 1949. 

As time went on, John Crane introduced more ground-breaking seals, filtration systems, couplings, and packing designs. Their products and services are used worldwide in many different industries and applications:

  • Chemical Processing
  • Food and Beverage
  • Mining and Minerals
  • Oil and Gas
  • Pharmaceuticals
  • Polymers
  • Power Generation
  • Pulp and Paper
  • Refrigeration Compression
  • Water and Wastewater

John Crane has more than 5,800 employees worldwide and production plants and service centers strategically located to serve every corner of the globe. At DXP Pacific, we are proud to have John Crane as a product partner. Their quality and innovative design are hard to beat, which is why we often utilize their mechanical seals. Here are some of the seal types they offer:

Dry Gas Mechanical Seals

Aura series seals are next-level dry gas seals. They are designed to optimize efficiency and reduce transaction costs by eliminating oil lubrication with a patented polymeric sealing device and an enhanced rotor design that minimizes maintenance.

Elastomer Bellow Seals

John Crane offers a range of elastomer bellows shaft seals, available in different designs and configurations to suit any specialized equipment and application.

Liquid Hydrocarbon Pipeline Seals

These are mechanical seals designed especially for liquid hydrocarbon pipeline transfer to optimize containment and meet all environmental protection standards.

Metal Bellow Seals

From dry-running secondary emission containment seals to single-cartridge designs and single stationary designs, John Crane has you covered with different metal bellow seal models.

Non-Contacting Mechanical Seals

These mechanical seals are specially designed to ensure zero power dissipation and to provide controlled leakage of gas as needed.

O-Ring Pusher Seals

The special O-ring and spring design help force the sealing fluid across the face, which prevents leaks from the atmospheric side of the seal.

PTFE Bellow Mechanical Seals

PTFE (Teflon) bellow seals are designed to handle highly corrosive chemicals, including concentrated acids, chemically active organic components, and strong oxidizing agents.

PTFE Wedge Seals

PTFE seals have a specialized wedge design, ideal for low- to medium-pressure duties in chemical refinery applications. These seals meet all DIN requirements.

Slurry Seals

Slurries can present a multitude of unique challenges, so you need the proper mechanical seal for the application. John Crane has an exceptional line of specialized slurry seals.

Split Seals

The split design of these seals is ideal for specific processing applications. They allow the shaft to rotate, which prevents any significant amount of fluid from escaping the pump housing.

Vessel and Agitator Seals

Stationary components of an agitator and their rotating parts need air-tight seals. These mechanical seals create a restrictive flow path with either an axial or radial gap.

Wet Gas Seals

Prevent high-pressure natural gas from escaping the compressor casing is critical. Use high-pressure oil and a unique mechanical fitting, such as wet gas seals.

John Crane has developed specialized mechanical seals for any industrial application. To learn more about their products and services, contact DXP Pacific today!