In rubber production, products such as latex, rubber compound, and slurry have high viscosity, are prone to adhesion, and can easily block pressure taps. Conventional transmitters with pressure taps are highly susceptible to blockage and failure, necessitating the selection of a cavity-free flat diaphragm + sanitary diaphragm structure.

1. Core pain points of rubber viscous medium

High viscosity adhesion: The adhesive tends to stick to the pressure tap and block the hole after curing.

Containing solid particles: carbon black, fillers, etc., which are prone to deposition and cause the core to jam.

Regular cleaning is required: high hygiene standards necessitate disassembly, cleaning, and disinfection.

Significant pressure fluctuations: The extrusion and mixing processes involve strong pressure shocks, necessitating resistance to vibration and shock.

II. Why choose PTL530 hygienic digital pressure switch

1. Pressure-free flat diaphragm design (key to anti-blocking)

The measuring end has no pressure tapping hole or chamber, and the diaphragm is flush with the end face, leaving no space for viscous adhesive to accumulate, thus eliminating blockage from the root cause.

The diaphragm isolation process ensures that the medium does not come into contact with the internal core, preventing adhesion and facilitating cleaning.

2. Made of hygienic material, suitable for rubber working conditions

The liquid-contacting part is made of 316L stainless steel, which is resistant to rubber additives and mild corrosion, and its smooth surface is not prone to rubber accumulation.

It can withstand cleaning and disinfection, is compatible with CIP/SIP processes, and meets hygienic requirements.

3. Digital display + switch control, compatible with automation

On-site LCD digital display, direct reading of pressure during inspection, no need for secondary instruments.

4-20mA remote transmission + relay switch signal, capable of interlocking extruders, pumps, and valves, providing overpressure alarm/shutdown, and suitable for closed-loop control of rubber production lines.

4. Resistant to vibration and durable, suitable for harsh workshop environments

Compact structure, shock and vibration resistance, and tolerance to continuous vibration from extruders and internal mixers.

With high protection level, moisture and dust resistance, it is suitable for the dusty and hot environment of rubber workshops.

III. Selection suggestions for different rubber processing steps

Latex/lotion delivery and batching tank → choose clamp-type sanitary type (such as PTL530), easy to disassemble and clean.

Extruder head, filter screen front and rear → choose flat membrane without pressure hole + high temperature resistant type, anti-blocking + high temperature resistant melt.

For the mixer and reaction kettle, we recommend selecting hygienic diaphragms and anti-vibration models to handle high viscosity and high impact.

Sulfurization tank, steam pipeline → Choose high-temperature hygienic type, considering both high temperature and anti-blocking.