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PTFE NEEdlE ValVEs
FVLT101
U Fluids Contact PTFE Only
U Structurally Rigid
Metal Shell
U One PTFE O-Ring
The FVLT100 Series compact
and reliable PTFE needle valves
are designed for laboratory and
industrial applications for regulating
corrosive gases and liquids or for
high purity service. They may also
be used as shut off valves.
PTFE bodies of the valves are
reinforced by structurally rigid
metallic shells. Fluids contact only
PTFE and CTFE materials. Shells
are made of anodized aluminum
or type 316 stainless steel and
bushings are made of plated brass
or 316 stainless steel. Where
externally corrosive conditions exist
stainless steel is recommended.
Valve spindles are made of rigid
CTFE to minimize the undesirable
material “creeping” normally
associated with PTFE.
The FVLT100 Series PTFE valves
are designed for relatively high
flow ranges while still performing
well in low flow rates. Valves may
be used in pressure or non-critical
vacuum service. The simplicity
of design—there are only seven
components (including a single
PTFE O-ring)—assures reliability
and minimizes sources of leakage.
It takes seconds to disassemble
the valve for cleaning and
maintenance. The PTFE O-ring is
radially compressed and due to this
unique design feature the degree
of compression may be adjusted
without disassembly by tightening
the hexagonal bushing.
The FVLT110 Series metering
valves are constructed of PTFE
and PCTFE materials. Non-fluid
contacting external parts are made
of anodized aluminum.
Valves are offered in three
conveniently overlapping flow
ranges. Safety handle prevents
over tightening and facilitates fine
metered regulation. FVLT110 Series
valves are useful in regulating the
flow of corrosive gases and liquids.
They may be used in pressure or
non-critical vacuum service and
serve as bubble tight shutoff valves.
SPECIFICATIONS
Maximum Pressure: 75 psig (517 kPa)
Maximum Temperature: 65°C (150°F)
Orifice Size: 3.175 mm dia. (0.125”)
Materials of Construction Fluid
Contacting: FVLT100/FVLT110: Body
and O-ring-PTFE. Valve spindle-CTFE
FVLT101 shown
larger than actual size.
Non Fluid Contacting:
FVLT100: Shell - Aluminum
(anodized) or 316 stainless steel
Bushing - plated brass, or
316 stainless steel. Adjusting
Knob-phenolic
FVLT110: Shell + Handle -
Aluminum (anodized)
Number of Turns to Fully Open:
FVLT100: 6
FVLT110: 8
J
To Order
Maximum Flow**
ml/min ml/min
Model No.
FVLT101
FVLT102
FVLT103
FVLT104
FVLT101-SS
FVLT102-SS
FVLT103-SS
FVLT104-SS
FVLT111
FVLT112
FVLT113
FVLT114
FVLT115
FVLT116
Flow rates are based on 10 psig (69 kPa) inlet pressure and atmospheric exhaust.
**
Ordering Examples: FVLT101, PTFE wetted parts with a shell of aluminum and bushing of brass.
FVLT112, PTFE wetted parts with a shell of aluminum and bushing of brass.
Air Water
2400 130 0.011
55000 2800 0.250
2400 130 0.011
55000 2800 0.250
2400 130 0.011
55000 2800 0.250
2400 130 0.011
55000 2800 0.250
600 36 0.003
3000 180 0.015
30000 1800 0.150
600 36 0.003
3000 180 0.015
30000 1800 0.150
Cv Connections Non Wetted Materials
J-72
1
⁄8 FNPT Aluminum/Brass
1
⁄8 FNPT Aluminum/Brass
1
⁄4" Comp. Aluminum/Brass
1
⁄4" Comp. Aluminum/Brass
1
⁄8 FNPT 316 Stainless Steel
1
⁄8 FNPT 316 Stainless Steel
1
⁄4" Comp. 316 Stainless Steel
1
⁄4" Comp. 316 Stainless Steel
1
⁄8 FNPT Anodized Aluminum
1
⁄8 FNPT Anodized Aluminum
1
⁄8 FNPT Anodized Aluminum
1
⁄4" Comp. Anodized Aluminum
1
⁄4" Comp. Anodized Aluminum
1
⁄4" Comp. Anodized Aluminum
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