|
KRD, KRPD, KRMD
|
Pressure relay (KRD), low-pressure relay (KRMD) and differential pressure relay (KRPD) are intended for external electric circuits switching, when
monitored medium pressure or differential pressure reaches the pre-set value. |
Performance data:
|
No. |
Name |
Value |
|
KRD-1 |
KRD-2 |
KRPD |
KRMD |
| 1 |
Number of channels |
1 |
2 |
1 |
1 |
| 2 |
Response range, MPa |
0,06 - 0,25
0,18 - 0,75
0,64 - 1,2 |
0,04 - 0,1 |
0,008 - 0,025 |
KRD-2 provides a possibility
of independent choice of
range of settings for each
channel |
| 3>3 |
Response error,
not more than, kPa |
+7,5
+22,5
+36,0 |
+3,0 |
+0,75 |
| 4 |
Differential, not more
than, MPa |
0,025
0,075
0,12 |
0,02 |
0,0025 |
| 5 |
Number of switched
circuits |
2 |
| 6 |
Parameters of
switched 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) |
| 7 |
Mass, not more
than, kg |
2,2 |
3 |
1,6 |
1,5 | Monitored working media:
|
No. |
Name |
Value |
|
KRD-1 |
KRD-2 |
KRPD |
KRMD |
| 1 |
Type |
air
nitrogen
fresh and sea water
diesel oil
liquid oils
freon (refrigerant) |
air
nitrogen |
| 2 |
Pressure, MPa |
1,2 |
0,6 |
0,05 |
| 3 |
Temperature, °C |
+5 up to +45
for oil a congelation point
is not more than minus 15 | Overall mounting dimensions:
|
Fig. 1. KRD-1 |
Fig. 2. KRD-2 |
|
Fig .3. KRPD |
Fig. 4. KRMD |
|
Design 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 /TD>
|
115 |
55 |
М6 |
45 |
45 |
|
KRMD |
119 |
160 |
105 |
76 |
6,5 |
78 |
45 |
KRD, KRMD, KRPD serviceability control device
Serviceability control device (MPK-U) is intended for testing KRD, KRMD and KRPD during temporary disconnection of external cable without loss of relay sealing, as well as for external electric circuits.
|
Company
History
Products
