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.
Structurally rigid metallic shells reinforce the PTFE bodies of the valves. 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.
Model No.
Maximum Flow mL/min
Cv
Connections
Non Wetted Materials
Air
Water
FVLT101
2400
130
0.011
1/8" FNPT
Aluminum/Brass
FVLT102
55,000
2800
0.25
1/8" FNPT
Aluminum/Brass
FVLT103
2400
130
0.011
1/4" Comp.
Aluminum/Brass
FVLT104
55,000
2800
0.25
1/4" Comp.
Aluminum/Brass
FVLT101-SS
2400
130
0.011
1/8" FNPT
316 Stainless Steel
FVLT102-SS
55,000
2800
0.25
1/8" FNPT
316 Stainless Steel
FVLT103-SS
2400
130
0.011
1/4" Comp.
316 Stainless Steel
FVLT104-SS
55,000
2800
0.25
1/4" Comp.
316 Stainless Steel
FVLT111
600
36
0.003
1/8" FNPT
Anodized Aluminum
FVLT112
3000
180
0.015
1/8" FNPT
Anodized Aluminum
FVLT113
30,000
1800
0.15
1/8" FNPT
Anodized Aluminum
FVLT114
600
36
0.003
1/4" Comp.
Anodized Aluminum
FVLT115
3000
180
0.015
1/4" Comp.
Anodized Aluminum
FVLT116
30,000
1800
0.15
1/4" Comp.
Anodized Aluminum
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: Body and O-ring: PTFE Valve spindle: CTFE 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
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† All dollar amounts on this site are shown in US currency.
Note: **Flow rates are based on 10 psig (69 kPa) inlet pressure and atmospheric exhaust. Ordering Example: (1) FVLT101 1/8 FNPT Aluminum/Brass, $50.00
Keywords:PTFE needle valves, PFA valves, precision valves, manual control valve, low flow valve, air flow control valve, water flow control valve
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