| PAVE
hermetic seals are any type of insulated, stranded or solid plated copper
conductors in any combination or lengths, copper or brass connector pin
contacts or glass fiber optic cables of any type, all sealed for low or
high pressures or vacuums, helium gas tight, moisture tight bulkhead seals
available in unlimited wide range of combinations that can be easily customized
for cost effective small or large quantities. Wire connector terminations
can also be included for a complete, ready to use hermetically sealed
thru-bulkhead wire connector harness.
PAVE products are used in a wide range of industries around the world
including aerospace, low emission PZEV automotive and small engine (motorcycle,
ATV, marine, etc) fuel pumps and transmissions, process controls, defense,
telecommunications, semi-conductor and scientific instruments of all types
requiring high quality seals. All our customers require high performance
and cost effective standard or custom designed gas and fluid tight hermetic
seals.
PAVE
seals use virtually any commercial or military specification insulated
wires and/or connector pins sealed
in our proprietary epoxy process for a wide range of low and high pressures
and vacuums, temperature range from -60 to 150C or 200C and from small
to large quantity applications.
PAVE-Seal
Harnesses are standard or readily custom designed bulkhead electrical
or fiber optic cable seals that come in helium-tight hermetic, vacuum-tight,
fluid-tight, gas-tight, NEMA 4-6 or IP65-68 type moisture-proof, and/or
FM, UL, CSA, Cenelec Exxd explosion-proof seal versions. An unlimited
range of cabling types and lengths may be specified. Seal integrity is
complete whether pin or insulated wire types.
Hermetic
thru-bulkhead continous conductor wire seals from 1 to 900 wires, #6 AWG
to #30 AWG, any type insulation, low or high pressures or vacuums, gas-tight,
moisture-proof, sealed including through the conductor or insulation.
PAVE-Mate I style connectors have dual sided electrical disconnecting
plugs on BOTH SIDES with male pins on hex side and female sockets on thread
side from 2 to 128 contacts, #4 AWG to #22 AWG
PAVE-Mate II with a single side disconnect and either pre-wired and sealed
insulated wire leads or solder cups on the other side.
PAVE-Optic Seals can be single or multiple fibers, single or multi-mode
fibers of any lengths or connector types such as SMA, ST, FCPC, etc for
low or high pressures or vacuums.
Hermetically sealed coaxial or shielded cables of any type or PAVE-Mate
connector types with isolated shields (BNC, SHV, SMA, etc) and multi-pin
coaxial PAVE-Mate connectors, single or dual sided connections.
PAVE
Technology Co has custom designed hermetically sealed wire or cable feedthrus
and connectors, electrical, terminal, fiber optic, high voltage, coaxial,
thermocouple, micro d-subminiature, passthroughs, fuel pump connector
seals, packing glands, flex circuit seals, pave-mate, pave-seal, pave-flex,
epoxy seal
1
to over 100 insulated, hermetic thermocouple pair wires of any type or
multi-pin thermcouple connectors.
Welded wire junctions can also be ordered.
PAVE-Flex is an insulated flat cable or flex circuit hermetically sealed,
any type can be specified though solid copper conductor f lat cable is
the most economical.
Standard
density, high density, micro d and nano d-subminiature hermetic connectors
with either single
or dual sided connectors from 9 to 102 pins. Also coaxial and low cost
thermocouple contact versions for pressure or vacuum, light weight aluminum
or plastic shells.
Threaded copper or brass terminals or studs hermetically sealed for 20
amps to 1000 amps service up to high voltages for pressure or vacuum,
single or multiple terminal penetration seals.
#20
AWG or smaller Pins on either one or both sides for low or high pressures
and vacuum hermetic header
seal in small diameter seals.
Any
type High voltage wire or cable up from 1-30 kV, single or multiple cables,
with or without high voltage cable connectors.
EExd
II, UL, Factor Mutual Enclosure 3600, and/or CSA in metric threads, NPT
threads and/or TIG/laser welded designs can be provided.
Feedthru,
hermetic connector,feedthrough, wire grommet seal, hermetic header, feed-thru,
passthrough, passthru, fiber optic seal, electrical penetration, moisture-proof
electrical seal, vacuum seal, ceramic seal, glass to metal seal.
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| GFV
Associates, Inc. serves
the vacuum process industry and the scientific community by supplying
i services for measurement of vacuum. Our measurements are traceable to
the National Institute of Standards and Technology (NIST) meeting the
requirements of ISO 9001 standards and military specifications.
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GFV
Associates provides NIST- traceable calibration of your existing vacuum
measurement equipment, usually a control and the tube used with the
control. We also calibrate your existing tubes, providing a sensitivity
(gauge factor) measured under standard conditions. For a description
of our calibration services, click on CALIBRATE.
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GFV
Associates provides a complete line of hot-cathode ion tubes for vacuum
measurement; these tubes may be used with our own control or controls
manufactured by others. The tubes can be calibrated traceable to NIST. For
a complete description, click on TUBES.
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GFV
Associates provides extensive consulting services for vacuum measurement. For
a description of some of some past projects and our current capability,
click on CONSULTING.
System
Calibration Service
We
will calibrate any control/tube combination, including hot cathode gauges,
cold cathode gauges, and low-vacuum gauges against our National Institute
of Standards and Technology (NIST) standards, providing a multipoint readout
and graph, in the range from 10 -7 to 10 3 Torr. The service sets all
of the available control parameters for the most accurate pressure readings,
as well as establishing the functional performance of the system to a
NIST-traceable standard.
Hot-Cathode
Control Qualification Service
Ideally
hot-cathode ion tubes could be calibrated and characterized by their sensitivity
-- that is their "gauge factor" -- without regard to the control used
to operate the tube. GFV calibrates tubes using our NIST-tested controls;
the gauge factors so measured can be used to establish NIST-traceable
pressure measurements when the tubes are used on other "qualified" controls.
Hot-Cathode
Tube Calibration Service
Hot-cathode
tubes from any manufacturer with any service history can be certified
for use with GFV controls or qualified controls to provide NIST-traceable
measurement with the same precision as new GFV tubes.
Repair
and Certification
GFV
continues to provide repair and certification for our IGC-1 and IGC-10
ionization gauge controls. Certification price is $250.00; delivery is
one week from receipt of the control.
Questions
and Answers About GFV's Calibration Service
Question:
Why calibrate my high vacuum pressure-measuring systems?
Answer:
Because measuring equipment sensitivity changes. For example,
using a pressure-measuring system, a process is determined to require
a pressure reading of 1x10 -5 Torr or less. The lower curve of the figure
shows the pumpdown curve for this process; in 30 minutes the system reaches
a low enough pressure and the process is initiated. After a year, the
pumpdown curve shown in the upper curve of the figure is observed; now
it takes 46 minutes to reach 1x10 -5 Torr. The pressure-measuring system
has drifted from its calibration at the time the process requirement was
established. It is misinforming the operator; the system is really reaching
the required pressure in 30 minutes and the operator is taking 16 minutes
longer than necessary.
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