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Perma-Cal Pressure Gauges
High Performance Process Gauges
DESIGNED TO PERFORM ON ANY APPLICATION
Perma-Cal Technical Advantages over Conventional Pressure Gauges
Principle of Operation Perma-Cal pressure gauges operate on the unique principle of direct drive, which uses a single, helically wound bourdon tube made of Inconel X-750. Inconel was chosen for its elasticity as well as its excellent resistance to corrosion. All other wetted parts are stainless steel.
Only one moving part Since there are no springs, gears, sectors or linkages (metal to metal contact), there are no components to wear out. Component wear accounts for more than half of all gauge failures.
Permanent Calibration The complete absence of gears and linkages enables the Perma-Cal pressure gauge to be “permanently calibrated”. Hence, that’s where their name came from.
Safest pressure gauge in the industry The cross sectional area of the helical bourdon tube is approximately 1/100th the size of traditional “C” type bourdon tubes. In the event of a catastrophic failure of the helical bourdon tube, the small cross section of the bourdon and capillary tubes guarantee a low flow rate.
Over Pressure & Vacuum Protection Perma-Cal can withstand over-pressures to 150% of full-scale and a complete vacuum without degradation. Most competitors offer over pressure up to 130% of full scale with no vacuum protection.
Follow the links below for some of their products:
Perma-Cal Pressure Gauges
GANTNER Instruments

Gantner Instruments specializes in the measurement of mechanical, thermal and electrical quantities. Our innovative measurement technology solutions help you to optimize the quality of your product and manufacturing technologies in almost all applications: engine or component test stands, process monitoring and long-term monitoring.
Experience our innovative measurement hardware, powerful software solutions and qualified technical support.
Learn more about Gantner at their website.
RCM Industries
RCM Industries Inc. manufactures the Flo-Gage™ and Flo-Gard II™ differential pressure flow meters, flow switches, flow transmitters and digital display flow meters. Our direct reading differential pressure flow meters for lube oil, cooling water, compressed air, oxygen, carbon dioxide. Saturated steam can also be measured up to 120psig and Ammonia service flow meters. Improve productivity, reduce cost and protect critical equipment and processes with RCM’s family of differential pressure flowmeters for liquids and gases. The Flow Meter measures flow based on a pressure differential across a calibrated flow nozzle. The flow meters are available in pipe sizes ranging from 1/4″ to 8″ pipe, NPT, BSP, solder connection and wafer flange style connection and your choice of Bronze, Stainless Steel or Monel alloys.
Fluidwell Guidesense reliable level measurement

Best price-performance ratio in the market!
The Guidense is your first and best choice when it comes to reliable level measurement. The Guidense guided wave radar is the multi-applicable alternative for traditional measurement principles like ultrasonic, capacitive, conductive and pressure level measurements. The Guidense is not affected by changing process variables, such as density, conductivity, viscosity, temperature, pressure, vapor and dielectric constant. We offer the Guidense for an attractive price. Combined with the user-friendly features below, for sure the best price-performance ratio in the market!
New SIL 2 Compliant FS10i Flow Switch/Monitor

Control Management is proud to offer the FS10i Flow Switch/Monitor! This universal flow switch and flow monitor designed for simple insertion into ½” (13mm) or larger diameter pipes and square ducts is suitable for either liquid or air/gas applications. It is fast responding and highly repeatable to both increasing and decreasing flow rate changes.
The standard 1A relay trip point is easily set in the field for low or high trip point and the trip and reset points can be further tuned with hysteresis and time delay adjustments. Also included standard is a 4- 20mA trending output of the flow rate for connection to ancillary controls or alarm systems. The FS10i includes a 10-LED array which provides both an indication the trip point has been exceeded (LED flashes on/off) and of relative flow rate (10% increments) across the flow range.
The FS10i provides best-in-class features for installation in rugged duty and long-life in industrial plants, process and large buildings. Its flow sensor’s thermowells are constructed of highly corrosion resistant Hastelloy C-276, it will operate in fluid temperatures up to 250°F/121°C, IP protection rating to IP67, optional global agency approvals for installation in Division 2/Zone 2 locations and it is the only unit in its price range to carry a SIL 2 compliance rating. It has no moving parts to clog and requires no routine maintenance which saves time and expense over any mechanical-technology based flow switch.
Truelok Valves
We are happy to announce that we now carry Truelok Valves!
Please contact us for any of your application needs.
Truelok was founded in 1993 in California as a privately owned company to manufacture custom designed mini weld and face seal fittings, VCR compatible glands and gaskets and nuts for a selected industrial sector. During this period, the company invested its resources on research and development activities and implemented a number of innovative manufacturing procedures that refined the manufacturing process that yielded extremely smooth and contaminant-free wetted surfaces.
QCI Valves
We are happy to announce that we will now carry QCI Products:
For over 60 years, QCI has been providing a wide variety of processing industries with high-quality, trouble-free 2-way and Multi-Port Rotor Valve designs. The standard features incorporated into theirt valves make the QCI rotor valve a popular choice by design, plant and maintenance engineers alike.









