The design performance is the same as that of the A7 series, except for the installation length of the driver seat, other installation dimensions (d1<100mm) conform to the DIN24960 standard. Suitable for easy crystallization, particle-containing, fibrous media. The static ring can be equipped with G4, G6, G9, G13 and other types.
product description：
1. Double end face
2. Balanced
3. Arbitrary rotation
4. Multi-spring structure
The design performance is the same as that of the A7 series, except for the installation length of the driver seat, other installation dimensions (d1<100mm) conform to the DIN24960 standard. Suitable for easy crystallization, particle-containing, fibrous media. The static ring can be equipped with G4, G6, G9, G13 and other types.
Standard operating parameters：
Specifications: 18～200mm
Pressure: ≤2.5 Mpa
Temperature: -50～220℃
Linear speed: ≤20 m/s
Axial play：
d1≤100:±0.5mm
d1＞100:±2.0mm
material combination：
Sealing face:
Graphite, Silicon Carbide, Tungsten Carbide, Alumina
Auxiliary Seal:
Nitrile rubber, fluorine rubber, ethylene propylene rubber, silicone rubber, PTFE
Metal components:
Stainless steel
torque transmission：
The A74-D threaded pump structure is mainly used in pumps or equipment that require self-circulation of sealing fluid, and other sealing performance is equivalent to the standard type.
