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Flow Switches

For Water, Air, Gas and Oil

A flow switch sends an electronic signal telling you if you have flow or don't, and is perfect for tough industrial applications. Typically, a switch is needed where the flow is critical and is used to let you know if there is an issue. We have a complete inventory of flow switches and have been shipping them all over the world for over 20 years. As a US based supplier we are committed to providing the low prices, top notch customer service and fast turnaround times. Whether you are buying for the first time or know exactly what you need, our trained application engineers are ready to guide you through the buying process.

Series RVM/U

Low Cost Flow Switch

Full scale flow ranges from 60cc/m to 40 GPM and 4 SCFH to 400 SCFM. Connection sizes from 1/8 inch

to 1-inch NPT or BSP. Construction materials include brass or stainless steel, and it offers a calibrated scale for easy field adjustaility. It's spring loaded with mechanical design mounts in any orientation. Pressure ratings to 4500 PSIG.

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Series TS

Thermal Flow Switch

Switch with no moving parts that operates with or without liquids containing particulate or debris.

1/2-inch male NPT connection, mounts in pipe sizes from 1/4 to 2 inches. Compact durable design with stainless steel construction. Simple fail sale On/Off solid state switch with no adjustments. Offering easy installation using a mount in standard pipe tee. Low cost, ideal for end users and OEMs.

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Series RVO/U

Compact indicators and switces for low flat rates

Clear flow tube allows for view of process and scale. Full scale flow ranges from 60cc/m to 40 GPM a

nd 4 SCFH to 400 SCFM. Connection sizes from 1/4 inch to 1-inch NPT or BSP. Construction materials include brass or stainless steel, and it offers a calibrated scale for easy field adjustaility. It's spring loaded with mechanical design mounts in any orientation. Pressure ratings to 145 PSIG.

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Series Y, U, F, M

High capacity indicators, switches and transmitters

Easy to read with a large scale design that rotates, an optional field adjustable switches for hazar

dous and non-hazardous locations. Full scale flow ranges from 1 to 1200 GPM and 10 SCFH to 10,000 SCFM. Connection sizes from 1/4 inch to 8-inch NPT or BSP. Construction materials include brass, 316L S.S.,cast iron, aluminum or carbon steel. It's spring loaded with mechanical design mounts in any orientation. Pressure ratings to 2000 PSIG, optional 4-20MA transmitter.

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Series HFR, HFS, HFT

HIgh pressure, high temperature indicators, switches and transmitters

Spring loaded mechanical design can mount in any orientation. Viscosity compensating for liquids up

to 500 SSU and pressure ratings up to 6000 PSIG. Full scale flow ranges from 1 to 150 GPM and 10 SCFM to 1300 SCFM. Connection sizes range from 1/4-inch to 8-inch NPT, BSP, SAE or flange. Construction materials include brass, stainless steel or aluminum. Optional 4.20mA transmitter, field adjustable switches, and high temperature design up to 600 degrees F (315 C).

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Series DKM, DKM/A, DKG

Viscosity compensating indicators and switches

Maintains accuracy regardless of viscosity fluctuations with a calibrated scale for easy field adjus

tability. Full scale flow ranges from 60cc/m to 40 GPM and 4 SCFH to 400 SCFM and pressure ratings up to 4500 PSIG. Connection sizes range from 1/4-inch to 1-inch NPT or BSP. Spring loaded mechanical design can mount in any orientation. Construction materials include brass or stainless steel, with optional field adjustable switches.

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Series FIS, FSR

Low cost indicators with switch

Reads in GPM and LPM scale with connection sizes from 1/2-inch to 2-inch NPT, BSP or SAE. Full scale

flow ranges from 4 to 100 GPM (16 to 380 LPM) and 10 SCFM to 250 SCFM. Clear flow tube allows for view of process and scale, and spring loaded mechanical design can mount in any orientation. Pressue up to 325 PSIG (liquids) and 125 PSIG (air). Construction materials include polysulphone flow tube with brass, SS or PVC end fittings.

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Series TM/I, TM/P, TM/C

Thermal mass flow meters for aggressive and non-aggressive applications

Transmitter outputs include open collector contacts, 5 VDC or 4-20mA for flow/temperature or flow/pr

essure. Includes Nema 4x enclosure rated for all classes, divisions and groups. Accuracy is 0.5% of rate with pressure ratings up to 10,000 PSIG. No moving parts or flow obstructions with optional battery powered LCD that displays rate and total. Full scale flow ranges from 0.15 GPH to 400 GPM and 0.015 SCFH to 2000 SCFM, with connection sizes from 1/4-inch to 48-inch flange, tube fitting, sanitary, stub-welded or hot tap. Made out of 316L SS (standard) with other materials available.

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Series U3, F3, M3

High capacity indicators, switches and transmitters

Easy to read large scale design that rotates. Low pressure drop with spring loaded mechanical design

that can mount in any orientation. Connection sizes from 1/4-inch to 3-inch NPT, BSP or flange and full scale flow ranges from 1 to 250 GPM. Optional 4-20mA transmitter and field adjustable switches for hazardous and non-hazardous locations.

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Level Sensors

For indicators, switches and transmitters

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Vent Switch

Low pressure, low flow switch for air and gases

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Series MG

High Capacity Magnetic Flow Meter

Programmable response time from 0.1 seconds to 100 seconds with Nema 4x display enclosure. Accuracy

is 0.5% of rate with pressure ratings up to 600 PSIG. No moving parts or flow obstructions. Full scale flow ranges from 18 to 116,000 GPM and connection sizes from 1/2-inch to 20-inch wager, sanitary or flange. Construction materials include 304 SS with teflon or rubber lining and electrode materials include 316L, Hastelloy C, Monel, titanium or tantalum. Optional integral or remote micro-processor based LCD that displays rate, total, contacts and retransmission signals.

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Series RVP/U

Compact low flow switch

Calibrated scale for easy field adjustability with spring loaded mechanical design that can mount in

any orientation. Pressure ratings up to 145 PSIG with full scale flow ranges from 0.5 GPM to 8 GPM and connection size of 1/2-inch NPT or BSP. Construction materials include PVC body with stainless steel internals.

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