REGULATING SEAT VALVE NLR

Application

The NLR valve is a proportional pneumatically actuated valve designed for flow control in
installations of the dairy and food-processing industries, beverage production,
pharmaceutical and fine chemicals industries. The most important applications are
pressure control, flow control, tank level, etc.

Operating principle

The position sensor instantly controls the operating position to keep the valve in the
position determined by the user (PD function) or by a process parameter (PID function).
The operation position can be programmed by:
- a standard input signal sent by en external element
(e.g. a sensor). 40...20mA o de 0 a 10V
- an internal controller integrated into the positioner.
The signal is sent form a keyboard.

Design and features

Sanitary design according to the 3A specifications.
Normally closed valve (standard version).
Equal percentage regulation shaft.
360º adjustable body.
Compact design.
Dual function positioner:
-PD: position controller
-PID: process controller

Materials

Part in contact with the product        AISI 316L
Other stainless steel parts                  AISI 304
Gaskets (standard)                               EPDM according to FDA 177.2600
Internal surface finish                          Ra 0,8 μm
External surface finish                         bright polish

Options

Steam barrier (if shaft sterilisation is required).
Jacketed body.
Larger actuator sizes.
Internal surface finish Ra 0,5 μm.
Gaskets: NBR or FPM.
Connections: DIN, Clamp, SMS, RJT, FIL-IDF, etc

Technical specifications

Available sizes                                                 DN-25 to DN-100 / 1" - 4"
Operating temperature (EPDM gaskets)      -10 ºC to +120 ºC / 14ºF to 284ºF
Max. operating pressure                               10 bar /145 PSI
Compressed air pressure                               6-8bar / 87-116 PSI
Pneumatic actuator connection                    R1/8" (BSP)
Voltage                                                           24V DC
Process signal                                                4...20mA 
                                                                        0...10V (optional)

ZERTIFIKATE          

Datenblatt	ESENFRITDERUPL
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