Elastomer Rubber Bellow Mechanical Seals

Cost effective and mass-produced Mechanical Seal with Rubber Bellow (elastomeric bellow)

Designed by single or double, Hangzhou SEALCON supply standard and OEM elastomer bellows seals to suit different applications and media in various industries with a variety of suitable materials. Most of SEALCON rubber bellow seal can replace your pump seal easily.

Materials Combination for Elastomer Bellows Type Mechanical Seals
Seal Face: Carbon, SiC, TC
Seat ring: Ceramic, SiC, TC
Bellow: NBR, EPDM, VITON etc.
Spring: SS304, SS316
Metal parts: stainless steel SS304, SS316

Features of Elastomer Bellow Mechanical Seals
For plain pumps shaft
Elastomer bellows rotating
Unbalanced
Single spring
Stationary design
Most common metric seat available as requested

Elastomer Bellow Seals Basics
Elastomer bellows mechanical seal is identified by the use of a unique elastomer bellows or diaphragm for the secondary sealing part, which provides a high degree of axial flexibility to compensate for lack of concentration of the shaft & misalignment & wear due to thrust movement of the shaft.

Elastomer bellow seal is the most commonly and generally used rubber bellows seal, due to its compact design, easy installation, mass production and low cost.

Elastomer seal is non-directional, technically advantageous and extremely versatile. Elastomer bellow seals can be used regardless of the direction of the rotation since the driving torque is not transmitted through the single coil spring. The required driving torque is enhanced through the rubber bellow which fits on the shaft through the interference fit between the collar, rubber bellow, and shaft.

So as to meet the varying demands of our overseas customers, we are involved in manufacturing and supplying a collection of high-quality rubber bellow seals with competitive price, no minimum quantity.

Because of its excellent performance in various industries, as well as it’s compact design, cheap price and variety, rubber bellow mechanical seal is the most commonly used industrial seals.

Shaft runout is compensated by Elastomer bellow and spring due to its self-aligning capability. Elastomer Bellow protects Shaft/Sleeve from Fretting.

Elastomer Bellow Mechanical seals Application
Elastomer bellow seals are widely used in the centrifugal pump, water pumps, circulation pump, submersible pumps, auto cooling pumps, general industrial pumps and other rotating equipment, high-temperature applications of various chemical, petroleum, refinery and polymer industry.

Highly recommended application
water transfer applications
Sewage applications
Waste water pumps
Fuel injection pumps