Type21 T21 Mechanical Seal John Crane Type 21 Elastomer Bellows Shaft Seal Pump Seals

• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Speed: High-Speed Mechanical Seal
• Temperature: Temperature Mechanical Seal
• Performance: Temperature
• Standard: Standard
• Model NO.: Type21 Type 21 T21
• Type: HU1
• Balance: Balanced
• Stationary Ring: Tc, Silicon Carbide
• Rotary Ring: Carbon, Silicon Carbide, Tc
• Secondary Seal: NBR, EPDM, Vit
• Spring and Metal Parts: SS304, SS316
• Transport Package: as Requirement
• Specification: As Requirement
• Trademark: BE
• Origin: Zhejiang
• HS Code: 8484200090
• Production Capacity: 1000000/Month

Product Description

Type21 T21 Mechanical Seal John Crane Type 21 Elastomer Bellows Shaft Seal Pump Seals

Type 21
Type21
T21 mechanical seal:

A Type 21 mechanical seal is a specific type of single mechanical seal that is commonly used in centrifugal pumps.
It consists of a rotating seal face that is attached to the pump shaft and a stationary seal face that is mounted on the pump housing.

 

 

Type 21 General-duty Elastomer Bellows Shaft Seal Our general-purpose Type 21 mechanical seal has become the industry standard for OEM designers. Automatic adjustment compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances. The Type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. It is also commonly used by the wastewater and water systems industries for applications such as waste treatment, potable water and HVAC.

• Features

  • California Residents: PROPOSITION 65 WARNING
  • The drive band's "dent and groove" design eliminates overstressing of the elastomer bellows to prevent bellows slip and protect the shaft and sleeve from wear.
  • Non-clogging, single-coil spring provides greater dependability than multiple spring designs and will not foul due to fluid contact.
  • Flexible elastomer bellows automatically compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances.

Parameters

TEMPERATURE LIMITS
-40°F to 400°F/-40°C to 205°C (depending on materials used)
PRESSURE LIMITS
150 psi(g)/10 bar(g)
SPEED LIMITS
Up to 2500fpm/13m/s, depending on configuration and shaft size

Recommended Applications

• Process pumps
• Other rotating equipment

We offer products and services to a wide range of mechanical seal users across the nation. We supply electric motor and pump repair shops, HVAC contractors, municipalities, utility companies (electric, power and water) and a variety of other distributors.We are always committed to the imported mechanical seals localization and have accumulated a wealth of experience .Our product range includes Component Seals, Metal Bellow Seals, Cartridge Seals, Agitator seals, Dry Gas Seals and Split Seals.To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for Metal Bellow Mechanical Seals. To ensure you get what exactly youneed, our professional team will help you work through all the details straight to your target. With our powerful team support, you would not have to worry about anything. Our company establishes the management system in strict accordance with the requirements of international standards and makes detailed after-sales service commitment.

As Follows:

Our Warehouse

We are always committed to the imported mechanical seals localization and have accumulated a wealth of experience .

Our product range includes Component Seals, Metal Bellow Seals, Cartridge Seals, Agitator seals, Dry Gas Seals and Split Seals.

To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for Metal Bellow Mechanical Seals. To ensure you get what exactly you need, our professional team will help you work through all the details straight to your target. With our powerful team support, you would not have to worry about anything. Our company establishes the management system in strict accordance with the requirements of international standards and makes detailed after-sales service commitment.

FAQ

1. who are we? Are you trading company or manufacturer ?
We are manufacturer.We are based in Hangzhou, China, start from 2010,sell to Domestic Market(33.00%),North America(15.00%),South America(10.00%),Western Europe(8.00%),Eastern Europe(6.00%),Souther Europe(6.00%),Southeast Asia(5.00%),Mid East(5.00%),Northern Europe(5.00%),Oceania(2.00%),South Asia(2.00%),Africa(00.00%),Eastern Asia(00.00%),Central America(00.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;

3.what can you buy from us?
PTFE Seals/Oil Seals/O Rings/Rubber Seals/Plastic Seals/Mechanical Seal/O-RING/ RING Seals.

4. why should you buy from us not from other suppliers? 

Beseals is a professional manufacturer of seals .Our company specializes in the production of PU, PTFE, rubber and metal sealing components 

5. How long is your delivery time? 

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

6.Do you provide samples ? 

is it free or extra ? Yes, we could offer the sample for free charge but you need to pay the cost of freight. 

 

7. what services can we provide? 

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,Express Delivery; 

Accepted Payment Currency:USD,EUR,JPY,CAD,HKD,CNY; 

Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,PayPal,Western Union,Escrow; Language
Spoken:English,Chinese,Japanese

For more information, please contact us. We look forward to your arrival