• Fuan Zhongzhi Pump Co., Ltd.
    Vadim Zabiiaka
    Zhongzhi does really good on the design and manufacturing of the products. Experienced engineers service us very nice.
  • Fuan Zhongzhi Pump Co., Ltd.
    Mr.Reuben kimwolo
    Good quality, great manufacturers, we are happy with your products.
  • Fuan Zhongzhi Pump Co., Ltd.
    Mr.Yılmaz Türkoğlu
    Have been working together for more than 3 years very professional. all products work fine in our types of equipment. Thank you.
Contact Person : Semmy Wu
Phone Number : 05936532656
Whatsapp : +8613706040131

Static Type Seal Rubber Mechanical Seal CN MB1/CN MB1L For Centrifugal Pumps

Place of Origin FUAN
Brand Name ZOZHI
Certification CE, ISO9001
Model Number CN MB1/CN MB1L
Minimum Order Quantity 10pcs
Price negotiated
Packaging Details Packed in cartons
Delivery Time 25 working days after received your payment
Supply Ability 3000000pcs per month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Size Standard Size Product Name Mechanical Seal
Feature Rubber Bellows Mechanical Seal Speed 30m/sec
Model Number CN MB1 / CN MB1L Application Water Pumps
Pressure 0.1-4.0Mpa Material Type SIC/ INSERTED TC
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Product Description

Static Type Seal Rubber Mechanical Seal CN MB1/CN MB1L For Centrifugal Pumps

Mechanical Seal


Design Features

Internally mounted, single face, metal bellows, balanced, s type seal.


Driven by screws, any rotation direction, compact construction. It can be mounted conveniently


'S' welded metal bellows elastic component with good performance and high strength.


With superior seismic and compensation, a material widely used, adaptive capacity, and high performance


Materials(to DIN24960)


Rotary Ring: A U22 Q12 Q22

Stationary Ring: U22 Q12 Q22

Auxiliary Seal: G

Spring and Other Parts: F G G1T4M


Operating limits

Pressure: -0.1~4.0Mpa


Speeds:≤ 30 m/sec

Viscosity: ≤ 1.0 Pa.s (1000cp) (Solt VS Hard)

                ≤  3.5 Pa.s (1000cp) (Solt VS Hard)



Used in all types of rotating equipment, pumps, mixers, agitators, and compressors. To suit industries such as general chemical, oil refining, petrochemical, pharmaceutical, food processing, pulp and pater, and wastewater treatment.



Used in the cleaning and grain fluid, such as oil, hydrocarbons, aromatic hydrocarbons, organic solvents, weak acid, alkali liquid, water, ammonia water, etc.


Size Information
mechanical seal


Mechanical Seal



Installation Precautions

1. Assembly must be clean and smooth. The parts of mechanical seals, related machinery and equipment parts, tools, lubricating oil (grease), wipe materials (cotton yarn, white cloth, silk, etc.) must be very clean. The sealing end face of the dynamic and static ring should be wiped with white silk or soft gauze.

2. Trimming and chamfering of chamfers, shafts, sealed end caps, etc. shall be trimmed smoothly, and the relevant corners of the shaft and end caps shall be sanded and polished.

3. During installation, apply turbine oil or l0 oil on the moving ring and static ring (especially on the seal end blood), auxiliary seal ring, shaft, and end cap to reduce friction, so as not to damage the seal of the static ring. End faces and auxiliary seals.

4. Assemble the auxiliary sealing ring.
1) Rubber auxiliary seals cannot be soaked and washed with gasoline or kerosene to avoid swelling and deformation and premature aging.
2) After the O-ring is installed on the moving ring assembly or static ring assembly, it should be logical to prevent it from being twisted, so that the burr is in the cross-section when it is free. O-rings that are slightly rough on the burr can be used if the burr segment is 45o. However, care should be taken in the position of the burrs. When pushing the component, one side of the O-ring and the seal (gland or seal cavity) slide relative to each other. The burr on the side should be behind the sliding direction. Otherwise, the burr will be turned up and sealed. In position, it affects the sealing effect.
3) When pushing the assembly, prevent the O-ring from being damaged. The main forms of damage are drop, nick, bump, curl and twist.

5. Adjust the mechanical seal compression amount according to the technical requirements. For the value, refer to the product manual. Otherwise, the amount of compression is too large, which increases the specific pressure on the end face and accelerates the wear of the end face; if it is too small, the specific pressure on the end face of the moving ring and the dense ring is insufficient, and the seal fails.
6. The static ring assembly should be installed into the gland (or sealed cavity) using a press or a drilling machine. Under no circumstances should mechanical seal parts or components be impacted. The pressed surface should be covered with clean paper or cloth to avoid damaging the sealed end.

7. After assembling the moving ring or static ring assembly, press the compensation ring by hand to check whether it is installed in place and whether it is flexible; elastic split ring (in some mechanical seals, the elastic split ring axially positions the compensation ring) Reliable positioning.

8. Check whether the perpendicularity between the sealed end and the centerline of the shaft (or shaft sleeve) meets the requirements.

9. The anti-rotation pin lead of the static ring component must be accurate. When pushing the static ring component, the pin groove of the component must be aligned with the pin. After pushing in place, the distance from the end surface of the component to one end of the sealed cavity is determined to determine whether it is in place.

10. When tightening the end cap by tightening the bolts, use even force, symmetry, and care. Tighten it several times. Do not tighten it at one time to avoid skewing or even crushing the static ring.

11. After the moving ring is installed, it must be ensured that it can move axially on the shaft flexibly (press the spring with the moving ring and then spring back freely).

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Guarantee for one year from shipped on board date. During the guarantee period, our company will provide free easy-damaged spare parts for problems caused by our quality of production or raw material, except the damageable spare parts caused by the customer's incorrect artificial operation. In addition, after expiration, our company provides cost spare parts for maintenance. 
Our service:
1. Directly factory sale
2. Quick response to 2-8hours, response rates over 92%
3. 24 hours phone call is available, feel free to contact us.
4. All goods produced by ourselves, we provide one-stop services from designing, printing to processing. Customers can provide the design according to your request and samples making, also we can advise how to make the products according to customers' target prices.

1. Q: What’s the MOQ?
A: We accept one piece.
2. Q: Are you a factory or trading company?
A: We are a manufacturer.
3. Q: Can you accept using our logo?
A: Yes, we can do OEM for you.
4. Q: What’s the warranty period?
A: 1 year.
5. Q: What are the terms of payment?
A: T/T. 30% deposit and 70% against the BL copy or 100% LC at sight.