Stuffing box packing in the Food industry
Specifically for your requirements
Method of braiding and selected packing raw material is dedicated to the individual chemical and thermal requirement.
FDA conform products are available, example Trapez-Pack® TP619 and S6SI for Pumps and Mixers, A19OX for valves.
Food Approval EC 1935:2004 in accordance with EU10/2011 for Trapez-Pack® TP30 und TP63.
Test reports
Packing types
Products customized for food industry.
-
Valve Packing
A 19OX Oxygen
A190X Oxygen has a low coefficient of friction and displays low stem/spindle frictions.The packing is non-ageing and has a long lifetime. In applications with high pressure or vacuum, die formed bullrings of S4 are recommended, top and bottom, to prevent extrusion. The packing rings require minimal maintenance and readjustments.
-
Special packing
S 6 SI
Highest chemical resistance for a packing in rotating equipment; Pliable, easily compressible packing; Self lubricating, dry running capability; Shaft protecting surface hardness of HRC 25 is sufficient; Non ageing
-
Trapez Pack
Trapez-Pack®30
Excellent Standardisation features; Cross section impregnation avoids the penetration of crystallizing mediums; Wear resistant against abrasive products and with minimal coefficient of friction; Self lubricating fiber with high Carbon content, reduced shaft wear and excellent heat transfer characteristics; Thermally balanced construction, the coefficient of expansion is similar to steel, the packing is volume stabile and does not shrink. Therefore minimal re-adjustment needed after installation; excellent chemical resistance; Recommended shaft surface hardness: HRC 45
-
Trapez Pack
Trapez-Pack®63 Papermaster HS
Clean packing with ultimate heat conductivity for abrasive products in pumps and other rotating equipment; Recommended shaft surface hardness: HRC 35; Porosity filling coating increases density and protects the packing in crystallizing mediums; W-Profile Reinforcement reduces shaft wear
-
Trapez Pack
Trapez-Pack®619
Wear resistant through Running Track Reinforcement; Very high heat conductivity through employment of a special heat conductive Compound;
Clean packing, no contamination of medium; Increases the operative lifetime due to high mechanical strength and excellent heat conductivity; Provides maximum protection of shaft against wear (surface hardness HRC 25 is sufficient).
Case studies Food industry
Sealing applications in practice
In a food processing plant, 4 rings of dry PTFE packing in 12.7 mm on a 30 mm shaft were installed in an Isegen rotary valve. The pressure was low and was only 1 bar. The food to be sealed was at room temperature. The service life of the packing was mostly only 2 weeks and ended with an uncontrollable leakage. The shaft sleeve used had to be replaced after 12 months. The TP619 was chosen as an improvement. It has lasted 6 months so far.
Trapez-Pack®619
heat conductive ePTFE Yarn and form stable PTFE fibers