Series_SC250_Metal_tube_flowmeters
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Metal tube flowmeters Series SC250 Variable area flowmeter for liquids, gases and steam          Metallic or plastic tube with a robust construction Indication by means of magnetic coupling Scales calibrated in l/h, m3/h, kg/h, t/h, %, etc. High performance measurement in extreme working conditions and high resistance to corrosion Low pressure drop Fully hygienic design available Damping mechanism to avoid float bounces in gas and steam applications Flow measurement in horizontal pipes with the model SC250H and in vertical pipes with downwards or upwards flow (to increase the flow capacity) with the model SC250V Flow rate (model SC250): - Water: 2.5 l/h ... 180 m3/h - Air: 75 Nl/h ... 5400 Nm3/h Accuracy: 2.5% (qG=50%) / 1.6% (qG=50%) on request Connections: - Model SC250: DN15 ... DN150 - Models SC250H ... V / SM250: DN15 ... DN80 - EN 1092-1 or ANSI flanges. Other flange standards on request (JIS,...) - Threaded connections BSP or NPT - Sanitary connections according to ISO 2852, SMS 1145, DIN 11851, TRI-CLAMP® Materials: EN 1.4404 (AISI 316L), PVC, PP, PTFE, Titanium, Hastelloy Local indication Options: - 1 or 2 limit switches - Electronic transmitter with 4-20 mA analog output for safe or hazardous area (Ex ia IIC T4 or T6 protection, ATEX certified). HART protocol available on request - Local volume totalizer. Remote volume totalizer by mea

Working principle Flowmeters based in the variable area principle. audalímetros basados en el principio de área variable. The metering system consists on a calibrated orifice and a conical float. The force from the fluid, as it flows from the bottom to the top, displaces the float until it reaches an equilibrium point that is a function of: - E = force of the fluid flow - Pf = weight of the float - EN 1.4404 (AISI 316L): -50ºC ... +300ºC For higher temperatures, see thermal separator p. 11 - PTFE:  Ambient temperature: - EN 1.4404 (AISI 316L) & PTFE: - Al = free area of flow (Al = Ao,...

Metal tube flowmeters Series SC250 Float types The tapered floats are constructed in AISI 316L, PVC, PP and PTFE as standard or other materials on request, according to the characteristics of the process fluid. The maximum working viscosity for these floats is 10 mPa·s approx., depending on flow rate. Coated aluminium Polycarbonate (UV resistant) Flange seat PTFE PTFE/SS Flow tube

Dimensions EN 1092-1 flanges (dimensions in mm) A DN ANSI flanges (dimensions in mm) Pressure DN

Metal tube flowmeters Flow ranges Flow scales Flow scales r Special flow ranges. Please consult factory

Models SC250H … V The SC250H...V are versions of the SC250 flowmeter that can be installed in horizontal pipes with flow from left to right or right to left, in vertical pipes with downwards flow or in vertical pipes with upwards flow to increase the standard flow capacity. Working principle The metering system is made up of a calibrated orifice, a conical float and a spring. The force from the fluid, as it flows through the flowmeter, displaces the float and compresses the spring, reaching an equilibrium point which corresponds to a specific flow. Technical data The accuracy is 2.5%...

Metal tube flowmeters Series SC250 Flow ranges Model SM250 The SM250 is a version of the SC250 flowmeter that is suitable for liquids with high viscosities, which cannot be measured with the standard SC250. This is achieved thanks to its internal design and special floats. Flow scales Technical data The standard accuracy is 1.6% (qG=50%). This model can be equipped with the same electronic devices and accessories as the model SC250. The standard material is EN 1.4404 (AISI 316L) for both the flow tube and the float. Plastic versions (PP, PVC, PTFE) and special instruments for high pressure...

Limit switches Adjustable limit switch SC-AMM Electrical micro-switch mounted in the indicator housing.  SC-AMM1 … 2: 1 … 2 adjustable limit switches  Ratings: 3(1) A, 250 V (VDE/CEE)  Hysteresis: ±10% of full scale value  Ambient temperature: -25ºC ... +80ºC  Mechanical life: 107 operations  ATEX certificate Ex ia IIC T6 Gold plated contacts on request. SC-AMM Adjustable limit switch SC-AMD NAMUR (EN 60947-5-6) 3.5 mm slot type inductive detector activated by vane, mounted in the indicator housing.  SC-AMD1 … 2: 1 … 2 adjustable limit switches  Power supply: 8 VDC ...

Metal tube flowmeters Series SC250 Transmitters and totalizers Transmitter TH7 The TH7 electronic transmitters provide an analog output proportional to the flow rate and a digital output selectable either as a pulse or an alarm output (except for the Ex versions). They can also include a display for volume totalization. They are based on the Hall effect and mounted inside the indicator housing. transmitter + HART protocol transmitter + totalizer + HART protocol Technical data  Power supply: 12 … 36 VDC, 2-wire system  Power consumption: 4-20 mA for 0 … 100% of scale  4-20 mA analog...

Models SC250 — other connection types Sanitary connection DIN 11851 (EN 1.4404) Threaded connection BSP / NPT (EN 1.4404) Sanitary connection CLAMP ISO 2852 (EN 1.4404)

Metal tube flowmeters Series SC250 Accessories Thermal separator Explosion proof enclosure Ex d IIC T6  Standard in aluminium, optional in EN 1.4404 (AISI 316L)  Porthole with glass for viewing the flow rate  For working with fluids at high and low temperatures  In the inside, the SC250 ... SM250 housing with standard limit  Explosion proof protection: Ex d IIC T6  Ingress protection: IP65 (Pending of certification)  Reference ambient temperature: 20°C Stainless steel housing  Specially indicated for working within sanitary or sterile DN installations, saline atmospheres...

Float damping system (for gas and steam applications) Ceramic, PEEK or metallic piston system for avoiding float oscillations in flowmeters for gas and steam service, obtaining stable readings even with very low working pressures and low gas densities. Available for DN15 ... DN80 1. Upper float stop 2. Float 3. Piston 4. Piston locking circlip 5. Guide cylinder 6. Circlips for locking upper float stop & guide cylinder Heating-cooling chamber For installations that require maintaining the process fluid temperature by means of the circulation of a heating or cooling fluid through the double...