Welded metal bellows mechanical seals Type TG685 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.
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
Refining technology, Oil and gas industry Process industry Pumps Special Rotating Equipment.
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）
Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
Rotary Face
Silicon carbide (RBSIC) O
Carbon graphite resin impregnated Ak
Tungsten carbide W1
Stationary Seat
Silicon carbide (RBSIC) O
Tungsten carbide W1
Elastomer
Fluorocarbon-Rubber (Viton) V
Ethylene-Propylene-Diene (EPDM) E
PTFE Enwrap Viton M1
Bellows
Alloy C-276 M4
Stainless Steel （SUS316) G
AM350 Stainless Steel T6
Alloy 20 M3
Parts
Stainless Steel (SUS304) F
Stainless Steel (SUS316) G
4J42 T4
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Standard Seat:T4G9 T4G9 equivalent to Burgmann G9
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