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Products Showroom >> Pressure Gauges >> RaloTex Diaphragm Pressure Gauge DS418



RaloTex Diaphragm Pressure Gauges

Threaded Process Connection ----- Plastic material

DS418 series




Diaphragm pressure gauges are used when medium is corrosive, contaminated, viscous, crystallizing or with particles. DS418 series is particularly used with high corrosive medium. Industries of chemical, plating, waste water treatment and fertilizer are the most common applications.

Technical data:


All series pressure gauges and pressure transmitters are available

Process connection


1/4”; 3/8”; 1/2”; 3/4”; 1” PT (BSPT) / NPT, male or female thread Other connection available made-to-order.

Note: Generally PF (BSP) thread is not available because the inlet hole is too small and it will be clogged with viscous or crystallizing medium.

Upper diaphragm


PP standard

PVC ; Teflon(PTFE) ; PVDF available made-to-order Diameter 082 (PP only) and 70 standard, 55 mm available

Lower diaphragm


PP ; PVC ; Teflon (PTFE) ; PVDF

Diameter 082 (PP only) and 70 standard, 55 mm available

* PP=Polypropylene ; PVC=Polyvinyl Chloride ; PVDF= Polyvinylidene Fluoride


Teflon (PTFE)

Screws of housing

SS304 standard, other materials available made-to-order


PP — medium max+80°C for PN 1bar, max. +20°C for PN 10bar (linear)

PVC — medium max. +60°G for PN 1bar, max. +20°C for PN 10bar (linear)

PTFE / PVDF — medium max.+120°C for PN 1 bar, max.+40°C for PN 10bar (linear)

Filling fluid

Glycerin standard, fluorocarbon oil available

Pressure ranges

General type: 0/1 - 0 /10 kg/cm2 (bar), positive, negative or compound

Low pressure type: below 1 kg/cm2 (diameter of diaphragm housing should be 90mm)


assembly (option)

Capillary for remote measurement (specify length of capillary when ordering)


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