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Gems Flow Meter Catalog: Compact Rotor, Paddlewheel, and Vortex Sensors for OEM Equipment
Quick Answer: Silver Instruments supplies compact rotor, paddlewheel, and vortex sensors that match common Gems OEM flow meter footprints. The sensors cover DN10 to DN50 pipe sizes, 0.5 to 120 L/min flow ranges, and outputs such as pulse, 4-20 mA, and RS485. Send us your pipe size, flow range, and fluid type to get a quote within 24 hours.
What the Gems flow meter catalog covers
Most engineers know Gems compact rotor and paddlewheel sensors from food dispensing, water treatment skids, and small hydraulic systems. The catalog lists compact rotor sensors for 0.5 to 100 L/min. Paddlewheel models fit DN15 to DN50 pipes. Vortex sensors handle low-viscosity fluids up to 120 L/min. Many OEM machine builders choose these sensors because they are short and fit tight spaces.
In practice, most OEM buyers care about delivery time and thread compatibility. A sensor that arrives late stops a whole machine build. A sensor with the wrong thread adds extra fittings and potential leak points.
Silver Instruments equivalent models for OEM builds
Silver Instruments offers direct replacement sensors for common Gems part numbers. Our SGF-R rotor sensor covers 0.5 to 100 L/min. The SGF-P paddlewheel sensor fits DN15 to DN50. The SGF-V vortex sensor handles 1.5 to 120 L/min. Each model has a polypropylene, PVDF, or 316 stainless body option. Outputs include pulse, 4-20 mA, and 0-10 V. Threaded connections are NPT, BSP, or tri-clamp.
Here is the thing: a low-cost sensor fails fast if the wetted material is wrong. So we ask for the exact fluid and temperature before quoting. A customer in Malaysia found this step saved the project from a full skid rework.
Technical parameters for paddlewheel and rotor sensors
Our paddlewheel sensors work from 0.3 to 10 m/s. Accuracy is 2 percent of full scale. Repeatability is 0.5 percent. Process temperature is -20 to 80 °C. Higher temperature options go to 120 °C. Wetted materials can be PP, PVDF, or 316 stainless. The 4-20 mA output drives PLC inputs directly. Pulse output is open collector. Supply voltage is 24 V DC. ATEX Zone 1 versions are available for solvent and thinner dispensing.
The rotor sensors add a PT100 temperature output option. This helps OEM skid makers who need flow and temperature in one sensor. Body length is 65 mm for the short version. That length fits inside compact food equipment cabinets.
Vortex flow sensors for OEM equipment
Vortex sensors suit low-viscosity fluids like cooling water, deionized water, and light chemicals. The SGF-V covers DN15 to DN50. Flow range is 1.5 to 120 L/min. Pressure rating is 10 bar standard. The electronics module can be separated from the sensor body. This helps when the installation has vibration.
But vortex sensors do not work well when the fluid has high viscosity. For viscous liquids above 50 cP, choose an oval gear meter instead. We supply those too. A lubricant blending skid in Indonesia changed from vortex to our 0.2 to 30 L/min oval gear meter. That solved the low-flow a
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OEM packaging, documentation, and lead times
Silver Automation Instruments ships sensors in neutral boxes or with your company name. We provide test reports, material certificates, and 2D drawings. Many OEM customers ask for calibration certificates. We include a free calibration report for every batch above 50 pieces. Lead time is 7 to 15 days for standard models. Custom flow ranges take 15 to 25 days.
A vapor recovery skid builder in Australia reduced lead time from 9 weeks to 16 days. They used a Gems sensor before. The replacement SGF-P fit the same DN20 spool. The pulse output connected to the same PLC input without wiring changes.
How to order a compact OEM flow sensor
Tell us your pipe size in DN. Give the minimum and maximum flow rate in L/min. State the fluid type and temperature in °C. State the operating pressure in bar. Tell us the required output: pulse, 4-20 mA, or RS485. Tell us the power supply, usually 24 V DC. State the wetted material: PP, PVDF, or 316 stainless. A purchase manager from a wastewater OEM in Chile sent these details in one message. We returned a quote with drawings in 2 hours.
Send your details by WhatsApp at +86-25-52155837 or call us at +86-25-68650347. For drawings and large batch pricing, visit flow-meter.com.au. WeChat is also available at +86 15365082610.
FAQ: Gems Flow Meter Catalog and OEM Sensors
Can Silver Instruments replace Gems sensors with no pipe modification?
Yes. The SGF series uses standard NPT and BSP threads. Many DN15 to DN50 installations fit without changing pipe spools. Send us a photo of the old sensor to confirm thread size.
What is the price range for compact rotor, paddlewheel, and vortex OEM sensors?
Most rotor and paddlewheel sensors cost between 45 and 150 US dollars depending on material and output. Vortex sensors cost between 120 and 260 US dollars. Batch pricing is lower.
Do you offer sample units for testing?
Yes. We ship 1 to 3 sample units. Sample orders under 200 US dollars ship within 2 days from our warehouse. The customer pays freight.
What industries use these compact flow sensors?
Food and beverage dispensing, water treatment, pharmaceutical skids, packaging machines, and small hydraulic systems. We also supply marine cooling loop projects in Singapore and Perth.
Can you match a specific Gems part number?
Yes. Send the part number and a photo of the existing sensor. We check thread size, output, and body length. Then we recommend an SGF equivalent model. This check takes one day.
Contact Silver Automation Instruments for OEM Flow Sensors
Silver Automation Instruments is the manufacturer. That means no middleman delay. Send us your flow range in L/min, pipe size in DN, fluid type, temperature in °C, operating pressure in bar, and required output. We will return a quote within 24 hours. Include your target quantity for batch discount pricing.
Tel: +86-25-68650347
WhatsApp: +86-25-52155837
WeChat: +86 15365082610
Website: flow-meter.com.au
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