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Products Name:Model H7N mechanical seal

Products Details:Single end / balance / arbitrary rotation / DIN24960 standards, H7N series of widely used, good interchangeability. The static ring adopts floating type, the installation is convenient, and the pushing ring is jammed by the driving belt to prevent the spring from falling off. Other special technical measures include static ring limit and limit carbon ring stroke, so as to avoid excessive wear of carbon ring.

Operating parameters:
d1=14…200mm 0.55”…8”,p1=25(40)bar 230(580)PSI,t=-50…220℃ -58F…430F,Vg=20m/s 66ft/s

Material combination:


Stationary ring:


Torque transfer:

When d2> 100mm, twist the dent with four screws. H7 series of seals can be used to transfer torque by key. Such as H7S2/d1.

H75 multi spring structure
d1 =28…200mm
As H7N, but with multiple springs in sleeves (Item no. 1.5) axial movements ±2 to 4 mm, dependent on diameter.
H76 single spring structure
d1 =14…100mm
Dimensions, item no ‘ s and descriptions as for H7N, but with special single spring (item no. 1.5) for compensating large axial movements (±4mm)
H7F thread pump
d1 max. 100mm; Axial movement ±0.5mm
H75F
d1 =28…200mm
Axial thrust
d128…55mm=±2mm
d158…100mm=±3mm
d11088…200mm=±4mm