PTFE Bellows Mechanical Seals

PTFE Bellows Mechanical Seals

Item: DL-PT-05 Brand Name: DaoLin Type: Replacement Seal

Product Details

Product Name: PTFE Bellows Mechanical seals


For use with extremely corrosive chemicals, including concentrated acids and salts, strong oxidizing and reducing agents, and chemically active organic compounds commonly used on PTFE filled pumps.
The entire seal assembly and component parts employ mechanical drive to prevent slippage on the shaft or sleeve. Seal assembly is outside mounted and internally pressurized.

* If you are in fluid processing industry or food industry etc., please contact us with any inquiry, technical issues, quotations or orders.

Product Details:


PTFE bellows seals, 
Externally mounted,Independent of direction of rotation.

Multiple spring, single seal ,balanced

Recommended Applications

Chemical and organic compounds industry 
Extreme corrosion resistance media 
Anticorrosive Pumps
Other Rotating Equipment.

Combined Materials:

Rotary Face: 
    Silicon carbide (RBSIC) 
    Carbon graphite resin impregnated Ak
    Glass Filled PTFE Y
Stationary Seat 
    Surfacing Tungsten carbide I
    Silicon carbide (RBSIC) 
    Stainless Steel (SUS316) 
    99% Aluminium Oxide B1
    Composite PTFE Y1

    Stainless Steel (SUS304) 
    Stainless Steel (SUS316) 

    Pure PTFE T
    Stainless Steel (SUS316) 

Operating range

Shaft diameter: d1=18...100mm(0.750'' ...4.000'')
Pressure: p=0...0.8Mpa(116psi)
Temperature: t = -20 °C ...120 °C(-4°F to 248°F)
Sliding velocity: Vg≤13m/s(42.6ft/m)

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


1.Tissue paper + Carton box

2.As per customer’s requirement

Shipping method:

1.By Express: DHL,UPS,EMS,TNT or FedEx

2.By air, or by sea service are all available as requirements.


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