GS-20/21 General-duty Elastomer Bellows Shaft Seal
Brand GS
Product origin China
Supply capacity 10000sets
T21 elastomer bellow seal:
1, high temperature resistance, corrosion resistance, cold resistance, -40 ° C resistance to severe cold,
2, good service, if you have problems with the product, you can provide new products.
3, high quality, materials are high-grade 304 brushed stainless steel
Advantage of T21 mechanical seal:
(1) Elastomeric bellows prevents the bellows from sliding and protects the shaft and casing from wear.
(2) Non-blocking, single-coil springs have higher reliability than multi-spring designs and do not foul due to fluid contact.
(3) Flexible elastomer bellows can automatically compensate for shaft end play, runout, main ring wear and equipment tolerances.
T21 elastomer bellow seal:
Material And Component Codes
Description | Material | Material Feature & Suitable Scope |
Rotary /Stationary Face
| Carbon | Resistant against: erosive heat. suitable for water and oil medium. |
Ceramic | Resistant against:shore hardness,abrasion. Suitable for dusted water and oil. | |
Silicon Carbide | Resistant against:heat,abrasion,erosive. Suitable for industrial pumps, submersible pump sewage pump etc | |
Tungsten carbide | Resistant against:heat,abrasion,erosive. | |
Bellow Cup gasket Oring | NBR | Resistant against:pressure,abrasion,high elasticity and mechanical strength. Suitable for water and Oil Under -20℃-120℃ |
EPDM | Resistant against:heat freeze,chemical reagent depending. Suitable for water and Oil Under -40℃-150℃ | |
MVQ | Resistant against:heat, oil, reagent, medicine, acetone.Suitable for high temperature. Hydraulic equipment and vacum equipment Suitable for erosive medium under -20℃-180℃ | |
ECO | Resistant against:ozone aging merely ocetum, ammomia ethanol. Suitable for medium -40℃-150℃ | |
SUS304 SUS316 | Resistant against: freon, rock oil. Suitable for medium -30℃-130℃ | |
Retainer driver ring\spring Spring seat | SUS304 SUS316 | Resistant against: abrasion, antirust of feature |
Pressure: ≤1Mpa
linear velocity: ≤10m/s
Temperature: -20~200℃
Type 21 Mechanical Material:
•Stationary Ring(Ceramic/SiC/TC)
•Rotary Ring(Carbon/SiC/TC)
•Secondary Seal(NBR/EPDM/VITON)
•Spring & Other Parts(SS304/SS316)
john crane type 21 mechanical pump shaft seal
DHL package
270x270x150 less than 5kgs
290x290x310 less than 10kgs
550x290x310 less than 20kgs
Advantage of T21 elastomer bellow seal
T 21 is ideal for centrifugal pumps, rotary pumps and turbo pumps, compressors, coolers and other rotating shaft equipment. It is also used in the wastewater and water systems industry for waste treatment, drinking water and HVAC applications.
Liaoning Grand trade Co., Ltd is a high-tech and exporting enterprise integrating product research, design, manufacturing, sales and service.
Our main products：Mechanical seal(spring mechanical sea, welded metal bellow seal,water pump seal,elastomer bellow seal,high speed seal,cartridge seal),Seal supply system ,Vacuum welded metal bellows,Magnetic oil seal,seal parts of mechanical seals(silicon carbide,tungsten carbide,carbon graphite,elastomer o ring),bronze bearing and seal spare parts etc. The products are applied in many fields such as petroleum, chemical industry, electric power manufacturing, refrigeration, ship building, aviation, aerospace and so on.We have established long-time and stable cooperation relationship with many European ,American and Asian customers.
Packing:Standard & Strong Packing by air / sea
Poly bag + Box + Carton + Pallet
Can be with our brand packing, or OEM with your brand and design
Delivery: By Sea, By Air, By Train, By Truck, By Express company as your needs
Terms:EXW, FOB, CFR, CIF, DDU , if you need Door to Door please contact us
https://www.grandseal.net/product/gs-2021-general-duty-elastomer-bellows-shaft-seal
