grundfo pump mechanical seal from China manufacturer - Ningbo Tisun Seals Industries Co., Ltd.

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


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Product Detail

Model No.: TS250A

Production Capacity: 50-100 each month

Delivery Date: as per the quantity(15-25 d...

functions:: for pump

product:: pump seals

Temperature in the sealed chamber:: -20oC~110oC

Means of Transport: Ocean,Land,Air

Packing: Carton

Brand Name: TiSun

expRegion:: America, UN, east asia,mide...

Pressure in the sealed chamber:: <= 0.5Mpa

Linear Velocity:: <= 6m

Introduction:Operating limits
Pressure:≤1.2MPa
Temperature:20℃~20℃
Linear speed:≤15m/s

Introduction:Operating limits
Pressure:≤1.2MPa
Temperature:20℃~20℃
Linear speed:≤15m/s
Item Descrption Mat'l
1 O-RING   NBR/VITON
2   FLATING SEAT CARBON/TC/SIC
3 SEAL RING   TC
4 O-RING NBR/VITON
5 COIL SPRING 316/304
6   COLLAR 316/304
7 SET SCREW 316/304

unit:mm

Seal failure reason analysis
1. The pump shaft sleeve leaks
Many shaft sleeve is not out of seal box, so it is difficult to judge the source of the leak.Leakage of shaft sleeve is generally stable, and leakage of sealing surface is often to increase or decrease.After sealing surface leakage, make the surface rough, but sometimes also could get to the original state.(and sometimes do not have to rush to repair, observed a period of time again)
Around 2. If the seal is wet, but can't see.This creates centrifugal pump during starting running leakage liquid back into the sealing face, ACTS as a barrier.And from the pump flange or joint leakage of liquid drip into the stuffing box.
3. The thermal expansion can make the splice of the graphite ring loose inside the metal parts, also may be due to the low temperature keep the o-rings lose elasticity, and cause leakage.