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KRD

Serial production list

Pressure and Pressure Differential Relays

Technical characteristics:

Pressure relay (KRD)

KRD-1 KRD-2 KRPD KRMD

Number of channels

1 2 1 1

Range of response

0.06 – 0.25

0.18 – 0.75

0.64 – 1.2

0.04 – 0.1

0.008 -0.025

KRD-2 ensures independent selection of set point range for each channel

Pressure relay (KRD), low pressure relay (KRMD) and

Pressure differential relay (KRPD) are intended for commutation of external electric circuits in case pressure or pressure differential of the medium being monitored reaches the predetermined value (set point)

Error of response

±7.5

±22.5

±36.0

±3.0 ±0.75

Differential, MPa, maximum

0.025

0.075

0.12

0.02 0.0025

Number of commutated circuits

2

Parameters of commutated circuits:

• direct current (at voltage);

• alternating current (at voltage)

0.001 – 1.0 А (3 – 36 V)

0.02 – 1.0 А (15 – 250 V)

Pressure, MPa

1.2 0.6 0.5

Temperature, °C

from +5 to +45

solidification temperature for oil is -15, maximum

Working media being monitored

Air, nitrogen, fresh and sea water, diesel fuel, liquid oils, freon (halon) Air, nitrogen

Weight, kg, maximum

2.2 3.0 1.6 1.5

Overall and mounting dimensions:

KRD-1 KRD-2 KRPD KRMD
Overall and mounting dimensions KRD-1 Overall and mounting dimensions KRD-2 Overall and mounting dimensions KRPD Overall and mounting dimensions KRMD
Version a b c d e f g
KRD-1

122

112

106

68

М6

35

47

KRD-2

173

112

162

68

М6

35

47

KRPD

105

144

115

55

М6

45

45

KRMD

119

160

105

76

6,5

78

45












KRD, KRPD, KRMD condition checking device

Condition checking device (MPK-U) is intended for checking KRD, KRMD, KRPD when the external cable is disconnected temporarily without depressurization of the relay, as well as for external circuits continuity checking

Price, delivery terms and period are provided on request

Серийная продукция Аврора \ Batch production Avrora - реле давления температуры сигнализатор pressure temperature relays proof position signaling device control position KRD KPT KSPKV KSPKG KSPKT MUS SPKA