RT1

John Crane Type1 Replacement

Elastomer Bellows mechanical seal RT1 is suitable for a wide range of service condition. RT1U,RT1K conform with US and UK standard respectively. Type 1 mechanical seal range is designed for universal application: pumps, mixers, air compressors, fans and other rotating equipment. It is frequently used in the pulp and paper, petrochemical, food processing, wastewater treatment, chemical processing and power generation industries.

Features

Reliable transmission due to special design in the drive band and drive notches.
Special balancing in the elastomer bellows. design,avaliable in high-pressure application
Single seal、balanced、Bi-directional
Available in metric and inch sizes
Good interchange ability, RT1U Dimensional data conform with US standard, RT1K conform with UK standard.

Recommended Applications

Water and waste water technology
Petroleum chemical industry
Industrial pumps
Process pumps
Other Rotating Equipment

Operating range

Shaft diameter: d1=16…75mm(0.625” …3.000”)
Pressure: p=0…1.7Mpa（246.5psi）
Temperature: t = -40 °C …200 °C(-40°F to 392°F)
Sliding velocity: Vg≤13m/s（42.6ft/m）

Product Structure

Combination Materials

1.Rotary Face

Carbon graphite resin impregnated Ak
Silicon carbide (RBSIC) O
Tungsten carbide W₁

2.Stationary Seat

Aluminium oxide(Ceramic) B
Silicon carbide (RBSIC) O
Tungsten carbide W1

3.Auxiliary Seal

Nitrile-Butadiene-Rubber (NBR) P
Fluorocarbon-Rubber (Viton) V
Ethylene-Propylene-Diene (EPDM) E

4.Spring

Stainless Steel (SUS304) F

5.Metal Parts