Project Description

RTWT80

EagleBurgmann MFL WT80 series replacement

Welded metal bellows mechanical seals Type RTWT80 is a high parameter seal, used in corrosive media and large friction coefficient media. With good floatability and random compensatory, widely used in petrochemical industry,sewage treatment industry and paper industry.

Features

  • Welded metal bellows construction, Balanced, Independent of direction of rotation.

  • Extreme  temperature Resistance due to flexible Graphite material in auxiliary Seal 

  • Dimensional data conform with DIN24960 standard

Recommended Applications

  • Refining technology, Oil and gas industry

  • Extreme ranges of temperature and high-viscosity media 

  • Pumps

  • Special Rotating Equipment

Operating range

  • Shaft diameter:  d1=18…100mm(0.750” …4.000”)

  • Pressure: p=0…2.5Mpa(362.5psi)

  • Temperature:  t = -20 °C …400 °C(-4°F to 752°F)

  • Sliding velocity:   Vg≤15m/s(49.2ft/m)

Product Structure

Combination Materials

1.Rotary Face

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

2.Stationary Seat

Silicon carbide (RBSIC) O
Tungsten carbide W1

3.Elastomer 

Exfoliated Graphite G

Fluorocarbon-Rubber (Viton) V

Ethylene-Propylene-Diene (EPDM) E

PTFE Enwrap Viton M1

4. Bellows 

Alloy C-276 M4
Stainless Steel (SUS316) G
AM350 Stainless Steel T6
Alloy 20 M3

5.Metal Parts

Stainless Steel (SUS304) F
Stainless Steel (SUS316) G
4J42 T4

Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials