
Double end, multiple springs, balanced cartridge mechanical seal with spring protector and independent direction of rotation. Springs isolated from medium to prevent jamming. Easy installation without disassembling the seal cavity. Customized design. Models: HTM-30D351 through HTM-85D351. Inner diameter range: 30–85 mm. Applications include coal washery, mining, sewage treatment, paper making, metallurgy, power plants, and chemical engineering.
Rotary Face / Stationary Face / Elastomer / Spring / Metal Parts
SiC (Rotary) / SiC (Stationary) / Viton/EPDM/FFKM (Elastomers) / SS304/SS316/HC-276 (Springs) / SS304/SS316L/2507/2205 (Metal Parts)
| Model | Materials | GA |
|---|---|---|
| AS HTM | SiC (Rotary) / SiC (Stationary) / Viton/EPDM/FFKM (Elastomers) / SS304/SS316/HC-276 (Springs) / SS304/SS316L/2507/2205 (Metal Parts) | — |
Pressure
0 ~ 0.8 MPa
Temperature
-20 ~ 120 ºC
Linear Speed
3000 r/min or less
Mediums
Paper pulp, coal cinder, slag, ash and other fluids with solid powder. Solid concentration: not higher than 30%.
Customization Available
Changes of materials for getting other operating parameters are possible. Contact us with your requirements.

Single end, multiple springs, balanced cartridge mechanical seal with spring protector and independent direction of rotation. The compensation components support the sleeve while springs remain isolated from the medium, preventing jamming from high viscosity and crystallization. Easy installation without disassembling the seal cavity. Conforms to DIN24960, ISO3069, ANSI B1M standards. Inner diameter range: 35–170 mm. Applications include coal washery, mining, sewage treatment, paper making, metallurgy, power plants, and chemical engineering.

Single end, multiple springs, balanced cartridge mechanical seal with spring protector, independent direction of rotation and static compensation structure. Springs housed in stationary component cartridge, isolated from medium to prevent jamming from high viscosity and crystallization. Compensation components support the sleeve for extended lifetime. Easy installation without disassembling the seal cavity. Conforms to DIN24960, ISO3069, ANSI B1M standards. Inner diameter range: 35–170 mm.

Single end, multiple springs, balanced cartridge mechanical seal with spring protector and independent direction of rotation. Supports external seal flush or noflush operation. Springs isolated from medium to prevent jamming. Stationary and rotary rings palletized with Lstyle pad for higher flexibility under temperature changes. Unlike AS ZGJ, this seal works with devices that do not have or need a cooling system. Conforms to DIN24960, ISO3069, ANSI B1M, JB/T 123912015 standards. Inner diameter range: 35–170 mm.
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