RHM 20

FLOW SENSOR

The RHM 20 is a 2″ meter designed for general purpose flow measurement without the need for maintenance. Robust and accurate, the RHM 20 outperforms other flow technologies at an attractively low cost of ownership.

Range: 1 kg/min up to 480 kg/min
Pressure: up to 400 bar (5801 psi)
Temperature: -50°C (-58°F) up to +210°C (410°F)
Accuracy: 0.1 % of rate
Materials: SS 316L / SS 316Ti, Alloy C22 – 2.4602, Tantalum – UNS R05200, Super Duplex – 1.4410
Process Connection: 1" up to "

CONFIGURE

CATEGORY Medium Size Sensors, Chemical Injection, Fuel Consumption, Oil Measurement, Plastics Production

Face to Face dimension

Manifold design with thread connections

parallel tube / dual path

Process Connection	Face to Face (L)
Female Thread G 1”	136 mm / 5.35 in
Female Thread 1” NPT	136 mm / 5.35 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	486 mm / 19.11 in
W	See datasheet

Manifold design with thread connections

serial tube / single path

Process Connection	Face to Face (L)
Female Thread G 1”	136 mm / 5.35 in
Female Thread 1” NPT	136 mm / 5.35 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	486 mm / 19.11 in
W	See datasheet

Manifold design with flange connections

parallel tube / dual path

Process Connection	Face to Face (L)
ANSI 1½" 150#RF	460 mm / 18.11 in
ANSI 1½" 300#RF	460 mm / 18.11 in
ANSI 1½" 600#RF	500 mm / 19.69 in
DIN DN40/PN40 Form B1	460 mm / 18.11 in
DIN DN40/PN100 Form B2	500 mm / 19.69 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	486 mm / 19.11 in
W	See datasheet

Manifold design with flange connections

serial tube / single path

Process Connection	Face to Face (L)
ANSI 1½" 150#RF	460 mm / 18.11 in
ANSI 1½" 300#RF	460 mm / 18.11 in
ANSI 1½" 600#RF	500 mm / 19.69 in
DIN DN40/PN40 Form B1	460 mm / 18.11 in
DIN DN40/PN100 Form B2	500 mm / 19.69 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	486 mm / 19.11 in
W	See datasheet

Sealless design with flange connections

parallel / dual path

Process Connection	Face to Face (L)
ANSI 2" 150#RF	460 mm / 18.11 in
ANSI 2" 300#RF	460 mm / 18.11 in
ANSI 2" 600#RF	500 mm / 19.69 in
ANSI 2" 1500#RF	500 mm / 19.69 in
ANSI 2" 1500#RTJ	500 mm / 19.69 in
DIN DN50/PN40 Form B1	460 mm / 18.11 in
DIN DN50/PN100 Form B2	500 mm / 19.69 in
Grayloc Hub 2½" GR20	400 mm / 15.75 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	540 mm / 21.26 in
W	See datasheet

Sealless design with flange connections

parallel / dual path

Process Connection	Face to Face (L)
ANSI 2" 150#RF	460 mm / 18.11 in
ANSI 2" 300#RF	460 mm / 18.11 in
ANSI 2" 600#RF	500 mm / 19.69 in
ANSI 2" 1500#RF	500 mm / 19.69 in
ANSI 2" 1500#RTJ	500 mm / 19.69 in
DIN DN50/PN40 Form B1	460 mm / 18.11 in
DIN DN50/PN100 Form B2	500 mm / 19.69 in
Grayloc Hub 2½" GR20	400 mm / 15.75 in
Sanitary 1" Triclamp, DIN 32676	350 mm / 13.78 in
Sanitary NW20, DIN 11851	350 mm / 13.78 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	540 mm / 21.26 in
W	See datasheet

Sealless design with threaded connections

parallel / dual path

Process Connection	Face to Face (L)
Female Thread G ¾”	400 mm / 15.75 in
Female Thread ¾” NPT	400 mm / 15.75 in
Swagelok 1" tube compression fitting (SS-1610-1-16W)	560 mm / 22.05 in

Dimension	mm / in
A1	285 mm / 11.22 in
A2	300 mm / 11.81 in
B1	50 mm / 1.97 in
B2	70 mm / 2.76 in
H1	454 mm / 17.87 in
H2	540 mm / 21.26 in
W	See datasheet

Common Dimensions for all Construction Types

Standard blue aluminum terminal box, size = 125 x 80 x 57 mm (4.92 x 3.15 x 2.24 in)
Terminal boxes are supplied with an M20 x 1.5 cable entry and a polyamide compression cable gland fitting (for cable diameters 7 - 14 mm / 0.28 - 0.56 in). M25 x 1.5, 1⁄2” NPT, 3⁄4” NPT cable entries (without gland) are optionally available and must be ordered separately
Optionally available: SS 316 box, size = 100 x 100 x 61 mm (3.94 x 3.94 x 2.40 in) – only with remote transmitter

For more information and dimensions see datasheet under downloads.

Downloads