HQ74-D model mechanical seal
Product Description
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Double seal/Unbalanced/Independent of direction of rotation/Multiple Spring
Double seals in the HQ-74-D series have the same design-feature as the “ M7” family of single seals (easy-to-replace seal faces , ect.). Apart from the installation length of the drive collar, all fitting dimensions (d1<100mm) conform to DIN 24960.
Operating limits
d1=18 ~ 100mm 0.625”~ 8”
p1=16(25) bar 230(360)PSI
t=-50℃~ 220℃
Vg=20m/s(10m/s) 66(33)ft/s
Limit for shrink-fitted carbide seal faces with d1≥105mm Axial movement ：
d1≤100mm±0.5mm
d1﹥100mm±2.0mm
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