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Malema flow switch M-200X-S43-014
NegotiableUpdate on 05/17
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Overview
The Malema flow switch M-200X-S43-014 is an explosion-proof adjustable flow switch produced by Malema in the United States. It is made of 316 stainless steel, has a pressure resistance of 3000 PSIG, and is compatible with gases ranging from 1-50 SCFM/liquids ranging from 0.1-5 GPM. It has passed UL/ATEX/IECEX certification and is suitable for Class I C/D and Class II E/F/G hazardous areas. It uses a magnetic piston and isolation spring switch, and is adjustable on site, resistant to pressure fluctuations, and has a long service life.
Product Details
Malema flow switch M-200X-S43-014
Malema flow switch M-200X-S43-014
1、 Brand and Model
brandMalema Engineering Corporation, founded in 1981, specializes in industrial flow/pressure control
complete model number：M‑200X‑S43‑014
M-200X: Explosion proof Adjustable Flow Switch Series
S: 316 stainless steel body
4: 1/2 'NPT internal thread interface
3: SPDT (Single Pole Double Throw) switch
014: Factory calibration/configuration code
2、 Core performance
Explosion-proof ratingUL, ATEX, IECEX certification, suitable for Class I C/D, Class II E/F/G hazardous areas
Adjusting characteristics：On site adjustableSet point, resistant to pressure fluctuations, installation position insensitivePSG
Measuring principleMagnetic piston+isolation reed switch, single movable component, with a lifespan of millions of times
precisionSet point accuracy ± 10%, repeatability ± 5%, hysteresis 15% -30%
electricalSPDT contacts, supporting 120VAC/0.1A, 240VAC/0.208A, 250VDC
protection：IP65， High temperature resistance, corrosion resistance, suitable for hazardous working conditions
3、 Materials and Structure
Main body/piston：316 stainless steel(Standard), optional PTFE coated piston
sealHigh temperature and corrosion-resistant sealing components, suitable for chemical/oil and gas media
interface1/2 'NPT internal thread, straight/right angle flow designPSG
weightApproximately 1.25kg
4、 Key parameter table
| parameter item | specification |
|---|---|
| work pressure | 3000 PSIG（207 bar） |
| burst pressure | 5000 PSIG（345 bar） |
| Operating Temperature | -40℃～+150℃（-40℉～302℉） |
| Gas range | 1-50 SCFM (air) |
| Liquid range | 0.1-5.0 GPM (water/oil/chemical fluid) |
| contact form | SPDT (normally open+normally closed+common terminal) |
| Electrical Rating | 120VAC/0.1A、240VAC/0.208A、250VDC |
| Explosion-proof certification | UL、ATEX、IECEX（Ex ia IIC T6） |
| protection level | IP65 |
| Installation method | Pipeline direct connection, installed at any angle |
5、 Typical use
oil and gas industryFlow monitoring/cut-off protection for drilling platforms, oil pipelines, and refining equipment
Chemical/PharmaceuticalFlow control of corrosive media, high-purity fluids, and hazardous gases
Ship/Ocean EngineeringExplosion proof flow switches for cabin ventilation, fuel system, and fire protection system
industrial equipmentCut off protection for laser cooling, welding machine, power supply, and air compressor
Laboratory/Analytical InstrumentsGas analyzer and reactor flow interlockPSG
6、 Packaging and labeling
packaging: Original neutral paper box+shockproof foam, including product certificate, calibration label and instructions
identificationLaser marking model, serial number, explosion-proof mark, pressure/temperature parameters on the body
AttachmentStandard 18 inch (45cm) UL certified cable (green=public, yellow=normally closed, orange=normally open)
7、 Instructions for use
Install1/2 'NPT threaded straight pipe, ensuring the flow direction is consistent with the valve body arrow, can be installed at any angle
adjustOpen the explosion-proof junction box and use a screwdriver to rotate the adjustment knob to set the flow trigger point
wiringConnect wires according to color specifications (green=COM, yellow=NC, orange=NO), and it is strictly prohibited to exceed the rated load
maintenanceRegular cleaning of the flow channel (piston can be removed through the cleaning port), no lubrication required, no vulnerable parts
attentionOnly used in explosion-proof hazardous areas, prohibited from use in non certified environments; Overloading and short circuiting are strictly prohibited
