สเกลขนาด 2", 5" หรือ 10" สำหรับอ่านค่าอัตราการไหลของแก๊สและของเหลว
 
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Brand : Dwyer
 
The Series RM Rate-Master® Flowmeters are a line of general use, direct reading precision flowmeters suitable for both gas and liquid applications. This Series consists of 2" (51 mm), 5" (127 mm) and 10" (254 mm) scales that can be panel or surface mounted with optional precision metering valves. Within a given Series, the Rate-Master® flowmeter bodies can be instantly interchanged, allowing the piping to remain undisturbed, interchangeability of the ranges, and easy cleaning. *The Rate-Master® flowmeter bodies can be instantly interchanged within the same series scale size, allowing the piping to remain undisturbed, interchangeability of the ranges, and easy cleaning.
 
Product Applications
Medical equipment
Air samplers
Gas analyzers
Pollution monitors
Chemical injectors
Cabinet purging
 
Features :
 
Eliminate the need for troublesome conversions with direct reading scales
Reduce installation damage and cost due to stainless steel backbone that absorbs piping torque
Long operation life with durable, shatter-proof polycarbonate body
High repeatability enabled by precision injection molding around a precision tapered pin
Increased reading accuracy with special integral flow guides that stabilize float movement
Save time with instantaneous flow reading from scale graduations on both sides of the indicating tube
 
Specification : 
 
Service: Compatible gases and liquids.
Wetted Materials: Body: Polycarbonate; O-ring: Neoprene and Buna-N; Metal parts: SS; Float: SS, black glass, aluminum, K monel, tungsten carbide depending on range.
Temperature Limit: 130°F (54°C).
Pressure Limit: 100 psi (6.9 bar).
Accuracy: RMA: 4%; RMB: 3%; RMC: 2% of FS.
Process Connection: RMA: 1/8"; RMB: 1/4"; RMC: 1/2" female NPT.
Weight: RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz (1105.6 g).
 
Compliance:
Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).
CAUTION:
Dwyer® Rate-Master® flowmeters are designed to provide satisfactory long term service when used with air, water, or other compatible media. Refer to factory for information on questionable gases or liquids. Caustic solutions, anti-freeze (ethylene glycol) and aromatic solvents should definitely not be used.