Project Description
RT85N
EagleBurgmann Type MFL85N Series Replacement
Welded metal bellows mechanical seals Type RT85N 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
Bellows not only used as elastic component, but also has good torque transmission effect
No dynamically loaded O-Ring
Dimensional data conform with DIN24960 standard
Recommended Applications
Refining technology, Oil and gas industry
Process industry
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 …220 °C(-4°F to 428°F)
Sliding velocity: Vg≤15m/s（49.2ft/m）
Product Structure
Combination Materials
1.Rotary Face
Carbon graphite resin impregnated Ak
Silicon carbide (RBSIC) O
Tungsten carbideW1
2.Stationary Seat
Silicon carbide (RBSIC) O
Tungsten carbide W1
3.Elastomer
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.Parts
Stainless Steel (SUS304) F
Stainless Steel (SUS316) G
4J42 T4