Dwyer Instruments SERIES DTFF Catalog Page
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1/2˝ NPT
INLET & OUTLET
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1/4˝ NPT
INLET & OUTLET
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Series
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INLET & OUTLET
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DTFF
Fixed-Orifice Flowmeter for Low Flow Rates
The Series DTFF Fixed-Orifice Flowmeter for Low Flow Rates measures water,
oil, or air flow rates with great accuracy at a competitive price. Rugged stainless steel
construction ensures great compatibility and is an excellent choice for high line pressure
applications, with a maximum pressure of 3000 psig (200 bar). This is all without
sacrificing the sensitivity required for low flow measurements. Available in a wide range
of flow rates for each calibration, with stainless steel construction as standard. Comes pre
calibrated for horizontal in-line mounting.
Model
DTFF-1S-4W
DTFF-1S-5W
DTFF-1S-8W
DTFF-1S-10W
DTFF-1S-15W
DTFF-1S-20W
DTFF-1S-25W
DTFF-1S-40W
Range
0 to 4 GPH
0 to 5 GPH
0 to 8 GPH
0 to 10 GPH
0 to 15 GPH
0 to 20 GPH
0 to 25 GPH
0 to 40 GPH
Calibration
Water
Water
Water
Water
Water
Water
Water
Water
316 SS Body, Oil/Gas/Water Calibration
SPECIFICATIONS
Service: Compatible gases & liquids &
oils.
Wetted Materials:
Body: 316 SS;
Spring: 302 SS;
Range spring: 302 SS;
Magnet: PTFE-coated;
Orifice piston: Acetal;
Diaphragm: Fluoroelastomer.
Calibration
Oil
Oil
Oil
Oil
Oil
Oil
Oil
Oil
Air
Model
DTFF-1S-4O
DTFF-1S-5O
DTFF-1S-8O
DTFF-1S-10O
DTFF-1S-15O
DTFF-1S-20O
DTFF-1S-25O
DTFF-1S-40O
DTFF-1S-5A
Range
0 to 4 GPH
0 to 5 GPH
0 to 8 GPH
0 to 10 GPH
0 to 15 GPH
0 to 20 GPH
0 to 25 GPH
0 to 40 GPH
1.5 to 5 SCFM
Flowmeters, Dial
1/4˝ NPT Process Connection
Temperature Limit: -22 to 200°F (30
to 93°C).
Pressure Limit: 3000 psig (200 bar).
Accuracy: Liquid/oil calibration: ±2%
FS; Air calibration: ±5% FS.
Repeatability: ±1% FS.
Size: Diameter dial face 2.5˝ (63.5
mm).
Process Connections: 1/4˝ female
NPT.
Weight: 4 lb (1.81 kg).
167
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