Selection Criteria for Choosing the right packing

Products on Reqirement

Many factors are important to select the right product for an application. Design, materials of construction and the way the product will be utilized. We know what you require and focus on function and economics.

We develop and produce customer-specific special and individual solutions for every application. Use our product filter and you will maybe already find your required product in our standard product range.

Stuffing box design

To avoid extrusion, the gap between shaft and housing, or between shaft and packing gland, should not exceed 2 % of the packing size for higher pressure valve applications and 5 % of packing size for lower pressure pump applications

Standard Construction:
d
= Pump shaft / Valve stem size
D = Stuffing box bore
t = Stuffing box depth
Sp = Gap width
Rz = Surface roughness Shaft 1 to 5 µm
Housing 6-16 µm

Rotating speed

Relation of Heat conductivity

of different Pump packings

Optimized number of rings

for pump and for valve

Chemical resistance of packing