for high temperature valves and pumps.
Graphite Packing for
Extreme Temperatures
Description
Pilotpack 4000 manufactured from pure expanded graphite containing minimal amounts of trace elements such as sulphur and chloride, then reinforcement with Inconel wire.
This ensures that the packing has high thermal conductivity, very low friction and rapid heat dissipation, factors that ensure a long seal life.
The inclusion of a corrosion inhibitor ensures that when the packing is used on valves with stainless steel stems, pitting does not occur in environments prone to galvanic corrosion.
Applications
- Long sealing life for high temperature high pressure valves.
- Available as standard grade – PILOTPACK 4000 or nuclear grade – PILOTPACK 4003.
- Inclusion of a corrosion inhibitor ensures stainless steel valve stems do not suffer pitting.
- Manufactured from highest quality pure graphite with minimal impurities.
- Contains Inconel wire reinforcement to minimise extrusion and provide high pressure capability.
- High thermal conductivity and low friction properties ensure increased service life.
- Easy to cut and install so can be used to replace moulded rings resulting in greatly reduced stock and cost
Chemical Compatibilities
- For the pH range 0-14, the packing is chemically inert and suitable for steam. It should not be installed in strong oxidising environments such as hot concentrated nitric acid, highly concentrated sulphuric acid and molten alkali metals.
Sizes Available
- All square sections from 3mm (1/8”) to 25mm (1”) are generally available from stock in differing lengths depending on the cross section. Larger and rectangular sections can also be manufactured to order. PILOTPACK 4000 and 4003 packing can also be supplied in preformed or die formed rings.
4000 Valve applications
Speed: 2 m/s
Temperature range:
- Inert gas conditions: -200 to 1000˚C
- Steam: -200 to 450˚C
- Oxidising environment: -200 to 450˚C
Maximum pressure: 350 bar (5080psi)
for higher pressures, please contact Beldam Crossley
Reciprocating applications
Speed: 2 m/s
Temperature range: -200 to 450˚C
Maximum pressure: 200 bar
PTFE Design
Beldam Crossley can create PTFE products to your specification, creating a product with the correct PTFE grade material that works best for your application.
Contact our team of design engineers with your requirements and see how we can help you.
Beldam Crossley has been moulding PTFE for over half a century. We have since developed a wide range of High Performance Crossflon® materials, each suited to a specific application.
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performance compression
packings are primarily designed to
create a sealing surface between a
moving spindle or shaft.
Engineering Plastics
PTFE for over half a century. We have
since developed a wide range of high
performance Crossflon® materials,
each suited to a specific application.
& Machined Components
of Crossflon® bearings for use in rotary
and linear applications. We manufacture
sleeve, flange and thrust bearings along
with bearing strips in Crossflon® high
performance engineering plastics.
PTFE bellow design and manufacturing
service. They are used in many applications
and prove effective in reducing vibration
transmission, whilst accommodating
expansion and contraction in various
equipment.
are carried, the unique construction and
properties of Pilot® Lidpack 3500 have
made it the leading brand of tank lid
packing.
aid the skidding of topsides, jackets and
other heavy fabrications. A structure
weighing in excess of 47,000 tonnes has
been successfully loaded out on a
Crossflon® skidway system.
Cord Seals
offers designers and engineers the ability
to increase operating efficiencies by
reducing hot gas leakage between
components in aircraft engines, other
turbines and high temperature static
sealing applications.
equipment to ensure rapid delivery of
precision cut quality gaskets including,
but not limited to CNC oscillating
knife cutting machines.