Stuffing seal used at pressures up to 1,0 MPa (in some cases up to 2,0 MPa) when the peripheral speed of the sealing surface to 20 m / s (in some cases up to 30 m / s), the water temperature before the stuffing is not allowed more than 90 ° S. In Taco 007-f5 pumps, the temperature provided by cooling the body with cold water seals, hydraulic device, the gate and in other ways.
To ensure normal operation padded seals need to vibration of the Taco 006 pump does not exceed the established standards and alignment, run-out and surface finish in contact with the gasket, are consistent with the requirements established by TU and guests at the Taco 008-f6 pump. Number of rings gaskets are advised to take 4 to 6. Cords gaskets are made by twisting and woven from hemp, flax, asbestos, jute, Teflon and non-ferrous metals (lead and copper) and impregnated greases: Technical fat, graphite, waxes, resins, disulphide molybdenum and other core gaskets are used for rubber, copper and brass wire, etc.
Taco 0011-f4 pumps use a combination of padding with cotton fabric, metal foil, etc., as well as fiber gaskets, which are entered in a special syringe seal. The main disadvantage of stuffing seal leakage is a significant addition to their limited resource, which varies widely between 1000 hours and less than 10 000 hours or more, depending on the conditions of the seals.
Stuffing seal require ongoing monitoring and periodic tightening gasket. This and other shortcomings mentioned are the reason that the seal stuffing more and more displaced from the designs of other types of Taco 009-f5 pump seals.
