Specifications

Mechanical Seal Type 21DIN
1.Equivalent to:John Crane Type 521,AES Seal P03,Flowserve 240,Latty T400,Sterling 522,Vulcan 24

           Type 21DIN Mechanical Shaft Seal for Pump

 

Dimensions                                                                                                                                

 

                                                 

 

                       

 

 

Process Of An Order                                                                                                                 

1. Please check product detailed information above.
 A. Model/Shaft Size   B. Face Material   C. Order Quantity.

 

2. Our Export Service Team will contact you with a quotation file within 3 hours after our team get your

    enquiry.

 

3. When you place an order, our team will confirm with you about ordered product information, package,

    method of payment and delivery, then a sales contract will be sent to you to confirm.

 

4. Packing: Cardboard box (absorbing wrapper inside).

 

5. How to delivery:
    By sea - Buyer appoint forwarder, or our sales team find suitable forwarder for buyers.
    By air   - Buyer provide your express account, or our sales team find suitable express for buyers. 

    Others - We arrange to delivery goods to some place in China appoint by buyers. 

 

Real Products                                                                                                                            

 

Item Parts                                                                                                                                   

                                              

Part No.	A	B	C	D	E	F
Description	Seal Face	Seat	Spring	Retainer	Elastomer Bellows	Drive Band

 

Features                                                                                                                                        

• For plain shafts
• Single and dual seal
• Elastomer bellows rotating   
• Unbalanced   
• Eliminates damage to bellows
• Eliminates drive failure

 

Advantages                                                                                                                                 

• Self-aligning unit automatically adjusts for shaft end play and run-out

• Eliminates potential shaft fretting damage between the seal and shaft
• Positive mechanical drive protects the elastomer bellows from overstressing
• Single coil spring improves tolerance to clogging
• Simple to fit and completely field repairable
• Can be used with practically any type and type of mating ring

 

Recommended applications                                                                                                   

• Water and waste water technology                                                            • Food and beverage industry

• Pulp and paper industry                                                                             • Water and waster water pumps 
• Water, waste water, slurries (up to 5 % by weight)                                     • Pulp (up to 4 % otro)
• Centrifugal pumps                                                                                      • Rotary and turbine pumps
• Compressors                                                                                              • Mixers
• Blenders                                                                                                     • Chillers
• Agitators                                                                                                 
 

 

 

Welcome To Visit Our Factory - Located in the tourism city - Hangzhou -West Lake.