Vertical magnetic float level switches RIZUR-M-V

Magnetic float level switch for liquids with vertical mounting RIZUR-M-V is designed for level control of liquids in open or closed tanks, including those under pressure, located at manufacturing facilities of chemical, petrochemical, medical, food, and other branches of the industry. RIZUR-M-V can be used as an indicator of presence (absence) of liquid in the controlled amount in the tank at a previously set height. Controlled media: water, petrochemicals, oils and other liquids.

Intended use and application area

Level switches RIZUR-M are manufactured in two design variants: RIZUR-M-G (horizontal mounting) and RIZUR-M-V (vertical mounting).

RIZUR-M-G
(horizontal mounting)
RIZUR-M-V
(vertical mounting)

rizur-m-g-4erteg.jpg
rizur-m-v-4erteg.jpg

B+C - 230mm in standard version (can be different upon an agreement with the manufacturer)

D - float diameter

L - probe length

L1...L8 - location of the control points (should be indicated at the order time)

It's possible to manufacture switches with different connection types: flange, sleeve nut, fitting connection, welded, etc.

Level switches RIZUR-M-V are used in systems of automatic control, monitoring and measurement of technological projects, as well as with other automation devices. They can also be used in filtration and cleaning systems and in tanks for cooling and lubricating liquids.

Upon reaching the set level, the liquid causes the level switch to emit “dry” output signal (NC and NO or break-before-make contacts are used).

The switches can be used in both standard and hazardous zones in accordance with the explosion protection markings. The switches can be calibrated in the factory environment to signalize levels for different types of liquids by a trial-and-error method and installation of a suitable float gauge.

Design and operating principle

The immersed part of the RIZUR-M-V sensor is a rod with a float (or several floats in different points). The traveling distance of the float is limited at the top and bottom parts by restrainers. Inside the float there's a permanent magnet, and inside the rod, which is a hollow pipe, there's a reed switch. When the float moves, the magnetic field affects the reed switch which causes control circuit to open or close.

Level switches RIZUR-M-V can have a housing with terminal blocks for the signal cables as well as one with a cable gland of required length.

The switches can be supplied in different design variants - depending on the process connection type (threaded or flange). Standard variant usually has a minimal connection size different depending on the float's diameter but on request it’s possible to manufacture it smaller than the float’s diameter with the float itself mounted on a mounting spool inside the tank.

However, there're design variants with the thread or flange connection smaller than the float's diameter and the float itself is attached to the rod inside the reservoir.

Level switches RIZUR-M-V are manufactured in accordance with the requirements of regulatory documents, designed at the Company, have all the necessary certificates and international standard ISO 9001. It’s possible to manufacture both standard design variants of RIZUR-M-V and non-standard ones, based on the technical requirements and Customer’s drawings.

Mounting example 

чертеж ризур-М-В.jpg

 

Magnetic float level switch RIZUR-M-V (vertical mounting)




























Medium operation temperature, °С -60….+150
Process pressure, MPa 1,6; 2,5; 4,0; 6,3; 10; 16 (up to 32 on request)
Minimum medium density, kg/m³
500
Material contacting the media st. steel 304, 316L, titanium, PTFE, PP, etc.
Number of alarm points up to 8
Max permissible voltage on the contacts, V 250
Max switching current, A 0,5 (up to 2 on request)
Max load on the contacts, W 20; 60; 200
Ambient temperature, °С -60….+50
Spatial orientation vertical, horizontal
Ingress protection IP65, IP66, IP67
Explosion protection marking without explosion protection, 1ExiaIICT6X, 1ExdIICT6
Housing material plastic, aluminium, stainless steel
Process connection threaded, flange (at least DN50)
Average service life, years 10

Design density is such media density that has the float immersed in the liquid at 50% of the height, minimal density – when the float is at 85%. It’s necessary to take this data into account when calculating the distance to the alarm points. *It’s possible to manufacture level switches with customized floats.

0
Send request