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Ningbo Tisun Seals Industries Co., Ltd.
Ningbo Tisun Seals Industries Co., Ltd.  

Gold Index: 37583

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Unbalanced rubber bellow mechanical seals 

Payment Terms: T/T,L/C,D/A,D/P,WU,Paypal,Money Gram 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: BT-PN
Production Capacity: 50-100 each month
Delivery Date: as per the quantity
functions:: for pump
product name:: Bellow type mechanical seal...
Speed:: ≤ 10 m/Sec
Means of Transport: Ocean,Land,Air
Packing: carton
Brand Name: TiSun
Exp Region:: America, Europea, east asia
Pressure:: ≤0.8Mpa
Temperature:: -20℃~150℃

Rubber bellows mechanical seals
Single spring
Independent of direction of rotation


The BT-PN is a large series mechanical seal with a simple yet effective design that is easy to assemble. The special spring arrangement allows a short axial installation length. This advantage is combined with an increased working pressure capability of up to 12 bar (174 PSI). The spring is free from torque transmission.

Operating range

Shaft diameter: 
d1* = 8 … 40 mm (0.31" … 1.57")
Pressure: p1** = 12 bar (174 PSI),
vacuum … 0.5 bar (7.45 PSI)
t** = -20 °C … +120 °C (-4 °F … +248 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)

Operating limits depend on p・vg factor

* Other diameters upon request
** Dependent on medium, size and material


Seal face: 
Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B), Silicon carbide (Q1, Q6)
Aluminium oxide (V), Steatite (X), Silicon carbide (Q1, Q6, Q7)
NBR (P), FKM (V), EPDM (E) 
Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)

Ms. Tina,Zhou
skype Ms. Tina,Zhou
sale manager
Tel: 86-574-87228142
Fax: 86-574-87228142
Mobile: 186 5826 0067
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Company Info

Ningbo Tisun Seals Industries Co., Ltd. [China (Mainland)]

Business Type:Manufacturer, Agent, Distributor/Wholesaler, Service
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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