metal Bellows Mechancial Seal is universally used for all industries.

It can replace most model of single coil spring, multiple spring and wave spring mechanical seal. Bellows is made from SUS316,SUS316L so it is a low-cost metal bellows mechanical seal but high performance, robust design and reliable for general applications.

Type DGB01 Welded metal Bellows Mechanical Seal

Operation parameter

Temperature   -75°C to 400°C

Pressure -0.1Mpa to 3 Mpa

Speed   up to 30m/s or no more than 5000r/min

Application Scope

The shaft seal system of rotating unitc used in industries of petrol chemistry, electricity, metallurgy, food, pharmacy etc., is particularly suitable for high temperature conditions of petroleum refining and petrol chemistry industry such as those of bottom residue and residual

Construction Features

 Flanged connection: simple structure, reliable positioning, and high installation accuracy

 Flat gasket seal: sound sealing, applicable in a wide range

 Static design: high compensating capacity, suitable for higher RPM (revolutions perminute)

 Baffling water jacket: forced cooling, simple construction, good cooling performance

Type DGB02 Welded metal Bellows Mechanical Seal

Operation parameter

Temperature  -75  °Cto 400 °C

Pressure  -0.1Mpa to 3 Mpa

Speed  up to 25m/s or no more than 3000r/min

Application Scope

The shaft seal system of rotating unit used in industries of petrol chemistry, electricity, metallurgy, food, pharmacy etc..It is particularly suitable for hot media with small amount of granules in petroleum refining process and petrol chemistry such as hot sump oil, fuel oil, residual oil etc.

Construction Features

 Flanged connection: simple structure, reliable positioning, and high installation accuracy

 Flat gasket seal: sound sealing, applicable in a wide range

 The revolving design enables the bellows to perform its function of self-cleaning which will avoid its blocking and loss of elasticity.

 The sub-ring is of monolithic structure and its end face deforms little

 The sub-ring seal may be made of Teflon (PTEF) or graphite etc., which can bear heat. 

Type DGB03 Welded metal Bellows Mechanical Seal

Operation parameter

Temperature -40°C to  200°C

Pressure -0.1Mpa to 3 Mpa

Speed  up to 25m/s or no more than 3000r/min

Application Scope

The shaft seal system of rotating unit used in industries of petrol chemistry, electricity, metallurgy, food, pharmacy etc..It is mainly used for low and medium viscosity media, such as light oil and some chemical raw materials, pure or containing small amount of granules, in low-and-medium temperature span.

Construction Features

 It is of non-thrust construction without slip seal ring, free of compensated loop, avoiding friction with shaft or shaft sleeve.

 Having excellent matching property, its jackscrew positioning widens its adjustment range. 

  The revolving design enables the bellows to perform its function of self-cleaning which will avoid its blocking and loss of elasticity.

 metal bellows mechanical seals feature a metal bellows core made of one of several types super alloy or steel.  The most common areAM350, Inconel 718 and  Hastelloy C-276.  Alloy 42(Carpenter 42), Stainless Steel (SUS 316,SUS316L) end fittings permits these metal bellows mechanical seals to be used for services beyond the range of mechanical seals with elastomer as secondary sealing element.

 Our advantages

  Now,we have passed the Conformity of Quality Management System ISO9001:2008.

  Our products are of the standards of ISO3069,GB6556,API610,DIN24960,BS5257and JB4127

  Quality raw material

  Timely delivery

  Cost effective prices

  Please feel free to call me if you want my service!!