PACKING & SEALING FOR PUMPS
Hydro Pumps supplies graphite, PTFE and aramid fiber packing, lip seals, gaskets and complete sealing kits for industrial pumps of any brand — with technical application guidance and optional field installation by our crew.
Sealing lines we supply
The right material for each fluid, temperature and shaft peripheral speed.
Graphite packing
High thermal conductivity and low friction — the standard for hot water, steam and general pumping services.
PTFE packing
Broad chemical resistance for acids, alkalis and aggressive fluids — chemical and petrochemical plants.
Aramid fiber packing
Superior mechanical strength for abrasive fluids and high pressures — mining and pulp services.
Lip seals and gaskets
Rotary and static seals for bearings, bearing housings and flanges — in your pump's dimensions.
Complete sealing kits
The pump's full sealing set in a single supply: packing or seal, lip seals, gaskets and o-rings.
Field installation
Packing replacement with correct gland adjustment and lubrication drip monitoring.
Well-applied packing is science, not force
The right tightness (and the leak that must exist)
Unlike a mechanical seal, packing works with controlled leakage: the drip is what lubricates and cools the interface with the shaft. Tightening the gland until the drip stops is the classic mistake — it burns the packing, wears the shaft sleeve and multiplies energy consumption through friction.
Correct application involves square-cut rings, staggered joints at assembly, progressive tightening and drip adjustment at startup. That is exactly how our crew executes field replacements.
When packing is the right choice — and when it is not
Packing remains the right sealing for many services: abrasive fluids that destroy seal faces, older equipment without a seal chamber, low-criticality applications where replacement cost matters more than leakage.
With expensive or hazardous fluids, or where leakage losses and friction consumption weigh on the bill, migrating to a mechanical seal usually pays off. Our engineering evaluates the application and recommends the route — we supply both.
Pump packing questions
What operators and buyers ask about packing.
For raw water with suspended solids, the usual choice is aramid fiber packing (abrasion resistance) or graphite packing with a lantern ring, depending on pressure and shaft speed. Send the pump model and conditions — our engineering specifies the correct set.
Yes — a controlled drip is the correct design of a packed box: it lubricates and cools the contact with the shaft. Packing running dry burns, wears the sleeve and raises motor consumption. If leakage must be zero, the path is a mechanical seal.
Both ways: rolls/meters for your warehouse, or the set already square-cut to your stuffing box dimensions — which eliminates the cutting error that is the main reason new packing leaks too much.
Yes. The field crew removes the old packing, inspects the shaft sleeve (sleeve wear is the number one cause of recurrence), installs the new set with staggered joints and adjusts the gland at startup.
Time to renew the packing?
Send the pump model and operating conditions — technical quote within 24h.