Quality John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal factory

John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal

Name: John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal
Brand: Hangzhou Bestseal International Trade Co., Ltd.
SKU: Type 285
Availability: InStock

Basic Properties

Place of Origin: CHINA

Brand Name: BESTSEAL

Certification: ISO9001

Model Number: Type 285

Trading Properties

Minimum Order Quantity: 1pc

Payment Terms: T/T,Western Union,D/P,D/A,L/C

Supply Ability: 1000000/Month

John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal For Cryogenic Pumps Mechanical Seals Pump Seals Non-contacting seals Type 285 Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps Unique Spiral Groove Technology As the worldwide leader in spiral groove technology, John Crane ...

Product Details

Highlight:

John Crane dry gas seals

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metal bellows mechanical seal

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Type 285 mechanical seal

Temperature Limits: -320°F To Ambient/-196°C To Ambient

Pressure Limits: Vacuum To 100 Psi(g)/7 Bar(g)

Speed Limits: 10,000 Rpm

Rotary Ring Face: Carbon/SiC/TC

Stationary Ring Face: SiC/TC

Elastomers:: NBR/Viton/EPDM/Aflas

Springs: SS304/SS316

Metal Parts: SS304/SS316/SS316L

Recommended Applications: Process Pumps, Other Rotating Equipment, Cryogenic, Liquified Gasses

Product Description

John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal For Cryogenic Pumps

Mechanical Seals
Pump Seals
Non-contacting seals

Type 285

Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps

Unique Spiral Groove Technology

As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals in cryogenic applications.

The Type 285 can safely seal the most common industrial liquid gasses, such as liquid nitrogen, oxygen, argon and carbon dioxide.

It fits the most popular cryogenic pumps — site-based and road tanker pumps — and meets liquid oxygen (LOX) safety standards.

The John Crane spiral grooves enable the seal to operate on a gas film by gathering and compressing the vaporized liquid.

As the gas is forced towards the closed groove ends, the pressure rises, which creates a cushion to separate the sealing faces.

Since the seal faces do not contact, dry-running and face wear problems, which are associated with conventional contacting seals, are virtually eliminated.

Technical Specifications

	John Crane, Inc.
Product Category	Mechanical Seals
Product Number	Type 285
Product Name	Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps
Mechanical Seal Type	Single
Seal Design	Metal Bellows
Seal Application	Pump; Cryogenic Seal

Features

Specially designed stationary edge-welded metal bellows.
Available in flanged, right- and left-hand threaded designs or as a cartridge.
Meets liquid oxygen (LOX) safety standards.
Anti-spark sleeve and retaining ring.
Reduced power consumption with minimal product loss. Since the seal faces do not contact, dry-running and face wear problems, which are associated with conventional contacting seals, are virtually eliminated.
The design and materials of construction meet the industry safety requirements, allowing the Type 285 to seal all of the common industrial liquid gasses including oxygen, nitrogen and argon.
The Type 285 is more tolerant to system upsets and increases your mean time between pump maintenance.

Parameters

Temperature Limits:-320°F to ambient/-196°C to ambient

Pressure Limits:Vacuum to 100 psi(g)/7 bar(g)

Speed Limits:10,000 rpm

Recommended Applications

Process pumps
Other rotating equipment
Cryogenic, Liquified Gasses

BESTSEAL — Your Reliable Partner for Mechanical Seals

BESTSEAL Advantage:
15 years	Focused in mechanical seal manufacturing
3 hours	Quotation response only takes 3 hours
1 day	Provide production assembly drawings
1 piece	MOQ, One piece can also be produced
15-20 working days	The production cycle only takes 15-20 working days
real-time	Real time synchronization of production progress