Series RSF Rotatable Scale Flowmeter

Dual, Rotatable Direct Reading Scales for Air and Water

Series RSF Flowmeters are designed with unique rotatable scales of dual, air-water direct reading graduations. Flow rate is indicated in SCFM and SLPM for air and GPM and LPM for water. Graduations are marked on a rotating, polycarbonate tubeshield which also serves to protect the borosilicate glass flowtube. Flowmeters include a reflective plastic background and 1.5 X magnification lens to reduce eye fatigue and allow for more accurate readings. A blow-out back panel provides additional protection in the event of breakage. Series RSF Flowmeters are available in vertical in-line mounting or panel mounting. Units are shipped completely assembled and include standard mounting hardware for quick installation.

Note: For PTFE Models contact the factory.

Product Applications

  • Film processing
  • Paper manufacturing
  • Chemical processing
  • Semiconductor industry
  • Water and air pollution analysis equipment
  • Metals processing
  • Industrial fuel and energy conservation
  • Air metering
  • General laboratory and industrial applications

Models & Ordering

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Model Number Description Usually Ships Price Code Order
RSF011 Rotatable scale flowmeter, max. flow rate 5 SCFM (140 SLPM) air, 1.2 GPM (4 LPM) water. Consult Factory $328.00 N Order
RSF012 Rotatable scale flowmeter, max. flow rate 10 SCFM (280 SLPM) air, 2 GPM (8 LPM) water. Consult Factory $328.00 N Order
RSF013 Rotatable scale flowmeter, max. flow rate 15 SCFM (425 SLPM) air, 3 GPM (11.5 LPM) water. Consult Factory $328.00 N Order
RSF014 Rotatable scale flowmeter, max. flow rate 20 SCFM (575 SLPM) air, 4 GPM (15 LPM) water. Consult Factory $328.00 N Order
RSF015 Rotatable scale flowmeter, max. flow rate 30 SCFM (900 SLPM) air, 5 GPM (20 LPM) water. Consult Factory $328.00 N Order

Specifications

Service:
Compatible gases or liquids.
Wetted Materials:
Flowtube: Borosilicate glass; Float: Brass/SS models: 316 SS, PTFE models: PTFE; Tube Shield: Polycarbonate; Float Stops: Brass/SS models: 316 SS, PTFE models: PTFE; End Fittings: Brass/SS models: Brass or 316 SS, PTFE models: PTFE; O-rings: Brass/SS models: Fluoroelastomer, PTFE models: PTFE.
Temperature Limits:
250°F (121°C). PTFE models: 150°F (65°C).
Pressure Limits:
150 psig (10.34 bar) @ 200°F (93°C). PTFE models: 100 psig (6.7 bar).
Accuracy:
±7% FS.
Repeatability:
±0.25% FS.
Scale:
Direct Reading 127 mm scales for air and water.
Turn-Down Ratio:
10:1.
Connections:
Two 3/8" female NPT.
Mounting:
Vertical or panel mount.
Panel Cutout:
Drill two 7/8" diameter holes 9.0" (229 mm) apart (for panel mount meters only).
Valve:
6-turn needle (standard on models indicating "with valve").

Accessories

Model Number Description Usually Ships Price Code Order
NISTCAL-FL1 NIST traceable calibration certificate for variable area flowmeters. Less than 1 Week $210.00 N Order

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