Area of use

The measuring station MR is used when measuring the flow in heating, cooling and water supply systems. It is equipped with self-sealing measuring sockets.

Description

Sizes DN65 to DN300 are mounted between the flanges. The measuring station is zink-aluminium plated.

Flow measuring

The measuring instrument is connected to the measuring socket of the proving ring. The instrument is pre-programmed with the characteristics of all our adjustment valves and proving rings.
Other valve manufacturers’ data is also included in the instrument. Values for pressure drop and flow can be read on the display. If you do not have access to the MMA instrument other common instruments for measuring pressure drop can be used. The flow can then be read from the pressure drop diagram found in the operating instructions.

Technical data

Pressure class
PN 16
Max temperature
120°C
Min temperature
-20°C
Max closing pressure
200 kPa
Min pressuredrop
5 kPa
Recommended pressure drop at rated valve
5-10 kPa
Material
Grey Cast iron, Dezincification resistance brass
Gaskets EPDM

Dimensions

A B C Kvs Weight/kg
MR 65 20 129 127 93 1,450
MR 80 20 144 134 126 1,710
MR 100 20 164 144 244 1,910
MR 125 20 194 159 415 2,480
MR 150 20 220 172 540 2,820
MR 200 20 275 200 1010 3,970
MR 250 20 331 228 1450 4,990
MR 300 20 386 255 2400 6,390

Function

Mätinstrumentet ansluts till ventilens mätuttag. Instrumentet är förprogrammerat med karaktäristiken för samtliga våra injusteringsventiler och mätringar. Även data för andra ventilfabrikat finns inlagda i instrumentet. Värden på tryckfall samt flöde kan direkt avläsas på displayen. Om man inte har tillgång till MMA´s instrument kan även vissa andra fabrikat användas. Flödet kan då avläsas med ledning av tryckfallsdiagrammet som återfinns i bruksanvisning för varje ventiltyp.

Order designations

RSK no. Art.no. Name Description
446 42 88 3181902 MR 65 Measuring station flanged
446 42 89 3182002 MR 80 Measuring station flanged
446 42 90 3182102 MR 100 Measuring station flanged
446 42 91 3182202 MR 125 Measuring station flanged
446 42 92 3182302 MR 150 Measuring station flanged
446 42 93 3182402 MR 200 Measuring station flanged
446 42 94 3182502 MR 250 Measuring station flanged
446 42 95 3182602 MR 300 Measuring station flanged