mechanical seal pumps made in 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.

YALAN Mechanical Seals, fully named as Anhui YALAN Seal Component Co., Ltd., and with this new name, was founded in 2001 (factory was founded in 1993) as a national high technology enterprise. With over 27 years of design and production experiences in mechanical seal component industry, YALAN has become a professional mechanical seal supplier that owns a full set of the chain of product design and development, manufacturing, sales and after-sales support services. Right now YALAN Seals is one of the leading mechanical seal manufacturers in China.

With continuous innovations, YALAN Seals has accomplished a lot of honor and awards by both national and local government. As one of the leading high quality mechanical seal suppliers, the company right now has over 15,000 square meters of production facilities, 10 main production lines with over 70 full-time employees in the factory and an annual revenue of USD 13 million.

Our seal products have been widely used in different sorts of pumps, including but not limited to chemical pumps, centrifugal pumps, high-temperature oil pumps, clean water pumps, circulating pumps, vacuum pumps, sewage pumps and slurry pumps. Beside for pumps, our seals also work with reaction kettles, submerged motors, compressors, blowers, paper-making equipment, sewage treatment equipment and other rotating machines.

Some products of YALAN have become good alternative solutions, which have the same level of quality but more affordable prices, compared to the original seal products from famous industrial companies such as ALFA-LAVAL, Andritz, KSB, John Crane, Grundfos, Siemens, EAGLE, Flexibox, EG&G SEAL OL, Roten, Sundyne, Chesterton, Pillar and etc.

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.

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.

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.

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.

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.

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

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.

We supply a wide range of products made of different materials, including rubber, stainless steel, PTFE, carbon, ceramic, Sic, TC, etc. Also, our sealing spare parts are easy to interchange and maintain.

Ningbo Donglian Mechanical Seal Co.,Ltd./Ningbo Dongya Mechanical Seal Manufacturer(Dyseals),formed in 1992,is a National High-tech enterprise with Provincial Research and Development Center with advanced management: ERP systems and remote operation.A coverage of 32000 square meters and a building area of 28000 square meters,an existing Staff of over 300. Products: mechanical seals, mechanical seal rings, shafts and bushes/sleeves in ssic, sic, ceramic, tungsten carbide and carbon, bullet-proof plates and body armours in ssic, sic, ceramic and boron carbide. The ceramic plates which we researched and developed were successfully assembled in the space experiment room called Tiangong 2 in 2015.

customized shaft seal ring Silicone carbide sic ring for pump mechanical seal Performance For Industrial Ceramic Item Unit SiC SSiC Purity % ≥90 ≥98 Density G/cm 3 3.05 3.1 Shore Hardness HS 110-125 120-130 Elastic Modulus MPa 4.12*105 4.10*10s Poisson Ratio 0.15 0.16 Tensile Strength MPa 2.75*102 2.8*102 Bending Strength MPa 4.41*102 4.9*102 Compression Strength MPa 2.94*103 3.0*102 Thermal Conductivity W/m. k 141 147 Coefficient of Thermal Expansion I/ ℃ 4.3*10-6 4.0*10-6 Heat Resistance 1600C 165CTC Tolerance Mm -0.02 —— +0.02 -0.02 —— +0.02 Acid Resistance 5 times higher than the usual TC Resist al chemical media