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Cartridge mechanical seal 28VL
for shaftsfor pumpmetal

cartridge mechanical seal
cartridge mechanical seal
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Characteristics

Type
cartridge
Applications
for pump, for shafts
Material
metal
Domain
process
Other characteristics
face, gas-lubricated, dry
Operating pressure

Max.: 124 bar
(1,798 psi)

Min.: 0 bar
(0 psi)

Operating temperature

Max.: 204 °C
(399 °F)

Min.: 40 °C
(104 °F)

Description

Utilizing proven spiral groove technology, the Type 28VL harnesses the rotational energy of the pump shaft to vaporize the process fluid at a controlled rate, creating a stable gas film that lubricates the seal faces. Typical problems, such as dry-running wear, vapor lock in the seal chamber and "face popping" (which can lead to catastrophic failure of conventional wet seals), are eliminated by the Type 28VL non-contacting face technology. Features California Residents: PROPOSITION 65 WARNING Extended wear life Outstanding reliability Reduced power consumption Zero process contamination Reduced emissions Recommended Applications Process pumps Other rotating equipment

Catalogs

Type 28VL
Type 28VL
4 Pages
Type 28VL
Type 28VL
4 Pages

Other John Crane products

Mechanical Seals

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.