[Roberts logo] Roberts Engineering Sales Co.  

Home

Principals:

 Eurotherm Chessell

 Eurotherm Process Automation

 FMC/Invalco

 General Eastern

 IOtech

 Lebow Products

 Metrix Instrument Co.

 PMC/Beta

 RdF Corporation

 Research Inc.

 Trans-Tek

Contact us

Invalco, Inc. An FMC Corporation Subsidiary

Request literature

Leading supplier of 3A certified sanitary turbine meters and 3A sanitary level detection products for food, beverage and pharmaceutical industries; liquid and gas meters for the petroleum industry. Other products include totalizers, flow computers, transmitters, batch controllers, gas and liquid flow computers, conductance and capacitance level control and micro valves.

1. Industrial Turbine Meters

Liquid Meters, W & WC Series:
  • Sizes from 1/2" to 6"
  • Flow rates from 1.5 to 3000 GPM (55-11,100 L/min)
  • Accuracies down to ± 0.5%
  • MNPT, flange, wafer, 37° flare, and victaulic connections
  • Pressures from vacuum to 7800 PSI

Gas Meters, GT Series:

  • Sizes from 1/2" to 2"
  • Flow rates from 0.5 to 100 ACFM
  • Accuracies are better than ± 1%
  • Pressures from vacuum to 2000 PSI

2. Capacitance & Conductance Level Measurement

Model 7450 and 9450 Level Controls:
  • A Low Cost Control for Conductive Liquids
  • Single or Multiple Contact Points
Series 8100 "RF" Capacitance Point Level Control:
  • Integral or Remote Mount, Easy to Install, for Liquids and Solids
  • Adjustable Time-Delay Circuit
Series 8500 "RF" Capacitance Continuous Level Control:
  • mA Transmission of Liquid or Solid Level or Oil/Water Interface
  • Up to 19.5 ft. Maximum Length

3. Batch Controllers & Liquid/Gas Flow Computers

Model 700 Batch Controller:
  • Single or dual-stage controller complete with volume and non-linearity compensation
Model 705 Gas Flow Computer:
  • Pressure and temperature compensation
  • Point linearization
  • Scaled 4-20mA or RS232/422 outputs
Model 715 Liquid Flow Computer:
  • Temperature and non-linearity compensation
  • High and low alarms
  • Scaled 4-20mA or RS232/422/485 outputs

4. Amplifiers, Transmitters, Rate/Totalizers

Model 3002 Frequency to Current Transmitter:
  • Vdc 2-wire 4-20mA transmitters, meter mounted
Pick-Up Embeded Amplifiers Model 505 Rate/Totalizer:
  • Digit rate, 7 digit total and accumulated total, battery and 12-24Vdc operated
  • High/Low alarms or 4-20mA output; 12-24 Vdc operated
  • Meter and wall mounted

5. 3A Sanitary Turbine Meters and Level Detection

3A Turbine Meter, WS Series
  • Sizes from 1/2" to 3"
  • Flow rates from 1.5 to 600 GPM (55-2,225 L/min)
  • Accuracy is better than ± 0.5%
  • Tri-Clover® type end connections
3A Sanitary Leveltronic Level Control:
  • For conductive liquids
  • Accuracy to within 0.01"
  • Available with up to four probes per unit
  • Maximum pressure of 250 PSI
  • Operating temperature -40°F to 185°F

6. Oil-In-Water Measurement

Envirolert Series 5100 Oil-in-Water Monitor:
  • Ultraviolet absorption and light scattering
  • 0-250 PPM operational range scale
  • Accuracy of ± 2% over full scale
  • Scalable 4-20mA signal and two 10 amp control relay outputs
Model OCM 7100 Oil Contaminant Monitor:
  • Temperature correcting capacitance based measurement
  • Operational ranges of 100 to 20,000 PPM (.01% to 2%)
  • Accuracy of ± 0.01% of full scale

7. Valves

2-Way, 3-Way, Control, Back-Pressure and Relief
  • Scalable 4-20mA signal and one 10 amp control relay outputs
  • Series 415, 416, 418, 420, threaded 2-way
  • Series 430, 455, flanged 2-way
  • Series 476, 487, threaded and flanged 3-way
  • Series 504 spring-loaded relief
  • Series 510 spring-loaded back pressure and relief
Micro Valve® Miniature Valves Miniature Control Valves for Liquid, Air and Gases
316 Series Micro Valve®
  • 3-way, two position, 1/16" orifice, 0-100 PSI
  • Aluminum body, stainless steel internals
38 Series Micro Valve®
  • 3-way, 2 position, 1/8" orifice, 0-100 PSI
  • Aluminum body, stainless steel internals
416 Series Micro Valve®
  • 4-way, 2 position, 1/16" orifice, 0-100 PSI
  • Aluminum body, stainless steel internals
Micro Valve is a registered trademark of Barworth, Inc. Springfield, NJ
 

Roberts Engineering Sales Co.
1003 Easton Road, Suite C317, Willow Grove PA 19090
Phone 215-657-3556; Fax 215-657-3661; Email normk@robertsengrg.com