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YALAN Seals

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+86-551-64287402

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Chuzhou - China

Send us an email

contact@yalan-seals.com

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Monday to Sunday open for quotation

  • Welcome to YALAN Seals

    Welcome to YALAN Seals

    YALAN Seals is a China-based organization, which has its own manufacturing factory and design company, supplying high quality and affordable mechanical seals and components. YALAN Seals is right now one of the top 10 mechanical seal manufacturers in China.
    Learn more
  • What We Supply

    What We Supply

    YALAN Seals designs and manufactures mechanical seals for pumps, mixers, water treatment devices, paper making and pulp equipment, chemical engineering, oil refining, machinery manufacturing, pharmacy, painting and printing, refrigeration, food processing, petrochemicals pesticide, and electricity generation (FGD - Flue Gas Desulfurization).
    Learn more
  • China National Mechanical Seal Standard Maker

    China National Mechanical Seal Standard Maker

    YALAN Seals created China National Standards of "Shaft Sealing Systems for Centrifugal and Rotary Pumps" (GB/T 34875-2017/ISO 21049:2004) and "Specification for Mechanical Seal of FGD Pump" (JB/T 12391-2015). YALAN Seals is also the administrative committee of China Mechanical Seal Industrial Association.
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  • Mechanical Seal Face Materials and Features

    Mechanical Seal Face Materials and Features

    Mostly used mechanical seal face materials mainly have 4 types, carbon graphite, sillicon carbide, tungsten carbide and overlay welded alloys. Every type has its sub models and different materials have different features and work with different operating conditions.
    Learn more
  • Elastomer Materials and Features

    Elastomer Materials and Features

    Elastomers work as auxiliary seals in mechanical seals. There are many types of elastomers used in mechanical seals, including but not limited to Viton, NBR, PTFE, FFKM, EPDM and flexible graphite. They all work with different mediums under different temperatures.
    Learn more

YALAN Seals is a top 10 mechanical seal manufacturers and standard maker in China.

Clients of

43

are using
our mechanical seals.

Here's why

Spring Pusher Seals

Spring Pusher Seals

Typical spring pusher mechanical seals such as 58U, 59U, 58B, 59B, M3 series, Type 104, 105, 108U, M74, M7N, M524, Convertor II, SAI, Cartex SN and DN, etc.

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Bellow Seals

Bellow Seals

Metal bellow and elastomer bellow mechanical seals such as replacement seals of MG1, MG12, MG13, MG9, BIA, Type 21, 2100, Type 680, Type 609, MFL85N, etc.

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Paper & Pulp Seals

Paper and Pulp Seals

Mechanical seals for paper and pulp devices, including replacement seals of Safematic series SE1, SE2, SEW, SB2, JCS1, JCS2, TB1, TB2, replacement seals of LP-D.

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Mixer & Agitator Seals

Mixer and Agitator Seals

Mechanical seals such as 2001, 2002, 2004, 2005 and 2009, MK451, MK481, Type 202, 204, 204B, 205, 206, 207, 212, Flowserve Type RO, HJCK for horizontal mixers. etc.

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Slurry & FGD Seals

Slurry and FGD Seals

Mechanical seals for slurry pumps and FGD devices, including ZGJ, ZHJ, ZWJ, TJL, HC80, B173, MN206, KTL, etc. For slurry and FGD pumps of manufacturers such as Kingda and Warman.

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Special Seals

Special Seals

Mechanical seals designed for special equipment such as high speed pumps, cryogenic pumps, immersion rolls, compressors, gearboxes, blowers, WILO pumps and Flygt pumps.

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Other Seals

Other Seals

Other products of YALAN Seals, such as bearing isolators, mechanical seal support system, spray coating shaft sleeves, friction pairs and O-rings, framework oil seals, cyclinder separators, etc.

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  • YALAN JCS2 Double-balanced O-ring Pusher Mechanical Seal

    YALAN JCS2 series mechanical seals are widely used in many types of pumps such as paper pulp pumps. The double-balanced design of the seal allows the use of both pressurized and non-pressurized sealant fluid. This component seal works as a replacement seal of John Crane JCS2 mechanical seal.
    • Pressure: 2.5 MPa or less
    • Temperature: - 10 ~ 200 ºC
    • Linear Speed: not higher than 25 m/s
    • Sealant Pressure: 0.1 to 0.3 MPa
    • Solid Capacity: 25% or less
    • Double-ended Balanced

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  • YALAN 1D56-H75 Cartridge Seal for Boiler Feed Pumps

    YALAN 1D56-H75 single-ended and multiple spring cartridge seal, balanced design with independent rotary direction and coil driven. The coil dirven structure is simple and reliable. This seal component is easy to install and the sealing performance is stable and reliable and has a longer life time.
    • Pressure: 2.5 MPa or less
    • Temperature: 200 ºC or less
    • Linear Speed: 30 m/s or less
    • Multiple Springs
    • Standard: API682
    • Single-ended Balanced

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  • YALAN UU7002J Cartridge Mechanical Seal for Roots Blowers

    Double-ended, multi springs, unbalanced, independent rotary direction, cartridge mechanical seal. Double-ended and unbalanced structure, compensation ring component, the stationary ring and the sleeve are pre-assembled together. The structure of this seal is simple and easy to install. The locking mechanism of the seal is stable and reliable and the multiple springs make the loads on the seal faces balanced. There is no limit to the rotary direction. The seal can be installed into the cavity of the operating device.
    • Pressure: 0.1 MPa to 0.8 MPa
    • Temperature: - 20 ºC to 180 ºC
    • Linear Speed: 15 m/s or less
    • Multiple Springs
    • Standard: Specifically Customized
    • Double-ended Unbalanced

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  • YALAN KTL Cartridge Mechanical Seal for Salt Slurry Pumps and Desulphurization Pumps

    Single-ended, multiple springs, balanced, independent rotary direction, static structure, clamp transmission and cartridge seal. The compensation components are assembled into the flange and the elastomers protects the springs from the mediums to make sure the springs will not be jammed. Multiple springs make the loads on the seal faces balanced. The sleeve are supported by the elastomers on the shaft and there is no axial movement and no damage to the shaft. Guide sleeve structure, the cooling efficiency of the sealant can be high. While running the seal will need the sealant connected.
    • Pressure: 0 ~ 1.5 MPa or less
    • Temperature: - 20 ~ 130 ºC
    • Linear Speed: 10 m/s or less
    • Solid Capacity: 30% or less
    • Standard: ISO3069, DZN24960, GB6556
    • Single-ended Balanced

    Read more

210

Power Plants Served

13000000

USD Annual Sales

3600

Seals Designed

600

Global Clients

Industries we serve

As one of the leading mechanical seal suppliers in China, mechanical seals of YALAN Seals are widely used in the industries below as very important machinery components.

Water Treatment

Clean Water, Vacuum & Circulating Pump Seals, Sewage Pump Seals, WILO Pump Seals, and Flygt Pump Seals

Chemical Industry

Chemical & Centrifugal Pump/Compressor Seals, Sewage Pump Seals, and Roots Blower, High Speed Pump and Gearbox Seals

Gas and Oil

High-temperature Oil Pump Seals, Roots Blower, High Speed Pump and Gearbox Seals

Paper and Pulp

Paper-making Equipment & Pressure Screen Seals, Agitation Equipment & Reaction Kettle Seals, and Light Slurry Pump Seals

Food and Beverage

Agitation Equipment & Reaction Kettle Seals, Beverage Pump Seals

Petrochemical Industry

High-temperature Oil Pump Seals, Sewage Pump Seals, and Roots Blower, High Speed Pump and Gearbox Seals

Power Generation

High-temperature Oil Pump Seals, Slurry Pump and FGD Seals, and Sewage Pump Seals

Pharmaceutical Industry

Agitation Equipment & Reaction Kettle Seals, Clean Water, Vacuum & Circulating Pump Seals, and Sewage Pump Seals

Our clients

Lekai Film

Lekai Film

RSP Industrial Pumps

RSP Industrial Pumps

BBCA Group

BBCA Group

Giti Tires

Giti Tires

Evonik Chemical

Evonik Chemical

Asia Paper Pulp

Asia Paper Pulp

China Salt Group

China Salt Group

China Oil and Foodstuffs

China Oil and Foodstuffs

JAC Motors

JAC Motors

China Huaneng

China Huaneng

HuaShen Pumps and Valves

HuaShen Pumps

Kingda Pumps

Kingda Pumps

Shandong Shunlun Pumps

Shandong Shunlun Pumps

Sanlian Pump

Sanlian Pump

SGB Pumps

SGB Pumps

China Himile Group

China Himile Group

DTP Power

DTP Power

DTS Group

DTS Group

See our facilities


Production - City of Chuzhou, China

Production

City of Chuzhou, China

Production Base

The whole facility is over 15,000 square meters, fully equiped with CNC production devices.
  • 70 full time employees
  • 10 production lines
  • ISO9000:2015, ISO14001 and OHSAS18001 Certificated
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Installation & Testing - City of Chuzhou, China

Installation & Testing

City of Chuzhou, China

Testing Center

8 full time employees working as the QA team, taking care of the final installation and seal tests in the testing facility.
  • 8 full time testing engineers
  • 1200 square meters
  • Dynamic and static tests
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Research Center

10 expierenced senior engineers work as a team of research and development for new mechanical seal design and solutions.
  • 10 senior engineers
  • 3,600 models of seals designed
  • Strong self-design abilities
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Design and Development - City of Hefei, China

Design and Development

City of Hefei, China

Support Center

YALAN after-sales and technical support center is located in city of Shijiazhuang with 6 support technicans.
  • After sales services
  • OEM partnership maintenance
  • North China tech support
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Support Center - City of Shijiazhuang, China

Support Center

City of Shijiazhuang, China


Production Base

Production Base

City of Chuzhou, China


YALAN production center is located in the beautiful Industrial Park of Dingyuan, City of Chuzhou, Anhui, China. The whole facility is over 15,000 square meters.

The production center has 70 full time workers and totally 99 sets of production devices. The whole factory is able to manufacture products of over USD 15 million and has an actual annual output value of USD 13 million per year currently.

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Testing Facility

Testing Facility

City of Chuzhou, China


YALAN installation and test center is located in the beautiful Industrial Park of Dingyuan, City of Chuzhou, Anhui, China. The whole facility is over 1,200 square meters.

The testing center has 8 full time installation and testing engineers. Every single seal produced will be tested here with both dynamic and static sealing experiment.

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Research and Development Center

Research and Development Center

City of Hefei, China


YALAN research and development center is located in city of Hefei, the captial of Anhui Province, China. It has 10 very experienced senior engineers working as a team for developing new mechanical seal solutions and provide technical support to the production factory of YALAN Seals.

The team has accomplished a total amount of over 3,600 models of mechanical seals and won 28 patents and invention. The search center of YALAN Seals is also named as one of the national high tech enterprises and provincial mechanical seal design and development technical center.

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North China Support Center

North China Support Center

City of Shijiazhuang, China


YALAN North China support center was established for supporting long term OEM relationships with big pump and mixer manufacturers in North China area.

The support center now has 6 full time engineers who will be available to work in field to resolve any technical problems our OEM partners would have at the end user's facilities.

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Frequently asked questions


  • YALAN SealsAll mechanical seals have these 3 basic sets of parts, which are: a set of primary seal faces, a set of secondary seals and other mechanical seal hardware, such as gland rings, collars, compression rings, pins, and compensation parts.

    YALAN Seals How is a mechanical seal constructed?
  • YALAN SealsThere are 3 essential requirements to seal faces and they must be: flat and polished, installed perpendicular to the shaft, and sufficient to maintain contact of the faces.

    YALAN Seals What are the essential requirements for proper operation of a mechanical seal?
  • YALAN SealsA mechanical seal is a device that helps join systems or mechanisms together by preventing leakage (for instance, in a plumbing system), containing pressure, or excluding contamination.

    YALAN Seals What is mechanical seal?

Discover more


Seal Faces

materials and features

  • Metal Impregnated Carbon Graphite
  • Resin Impregnated Carbon Graphite
  • Tungsten Carbide
  • Titanium Carbide
  • High Performance SSiC
  • High Performance RSiC
  • 99% Al2O3 Ceramic
  • Fiberglass and Graphite PTFE
  • Tin-bronze
Auxiliary Seals

elastomers and features

  • NBR
  • HNBR
  • Viton/FKM
  • FEPM
  • EPDM
  • Aflas
  • MVQ
  • Kalrez/FFKM
  • Flexible Carbon
  • V Type PTFE Slastomer
  • PTFE Coating Elastomers
FAQs

frequently asked questions

  • Definition
  • Usages
  • Seal Structure
  • Why Use Mechanical Seals
  • Suitable Devices
  • Advantages
  • Limitations
  • Why Choose Us
  • Flushing and Quench
  • Proper Operation
  • Essential Requirements
  • Vendors and Suppliers
Installation

checks, notes and suggestions

  • Pre-Installation Checks
  • Material Configuration Check
  • Device Precision Check
  • Shaft Check
  • Seal Face Check
  • Installation Notes
  • Noise Check
  • Sealing Chamber Check
  • Operating Temperature Check
  • Cooling System Notes

We are

Professional. Creative. Passionate. Innovative.

With over 26 years of experiences in mechanical seal industry, YALAN has got 28 patents, ISO9001, ISO14001 and OHSAS 18001 certificates, and a lot of other certificates and honors.

YALAN's engineering department is fully passionate and has complete design ability to custom mechanical seals according to different special requirements from our clients.


Learn more
Certificates and Honors

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YALAN Seals Global
Anhui, China
21st Floor, Lanjing International Tower
Yaohai, City of Hefei

+86 551 6428 7402
contact@yalan-seals.com
lia.wang@yalan-seals.com

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