Menu
 
Рус Eng

Sadko-107 pressure relay

САДКО-107

Purpose

Explosion-proof pressure relays are meant for electrical switching when pressure reaches the set values (activation setpoint) and switching back the contact group when pressure changes by the differential value.

Design features

  • relays have one normally open and one normally closed contact. Contacts provide switching of active and inductive loads with (1 ... 100) mA current at (20 ... 30) V voltage. The number of activations is not more than 105 under these loads;
  • mass-produced, have "1ExdIIBT4" marking of explosion protection, conform to GOST 12.2.020-76, GOST 22782.0-81, GOST 22782.6-81;
  • According to the degree of protection against dust and water - according to GOST 14254-80.

Specifications

Range of activation setpoints MPa (0-0,0025...0-0,01)...(3,0-6,0)
Operating temperature range °C -50...+70
Life time years 15
Warranty lifetime
years
4,5
Weight (max)
kg
2

Relays have two versions and modifications, different in the range of activation setpoints (see. Table below).

Version 1: : relay is actuated (closure of contact 1-2) when the pressure increases up to the opening pressure [Pact]. Relay is armed (closure of contacts 1-3) when the pressure goes down to value Rarm (Ract - D), where D is differential. Differential is the absolute difference between the actuation pressure [Pact] and the arming pressure [Parm]. The initial state for all relay versions is the state, when the pressure in the working volume of relays is equal to the atmospheric one.

Version 2: relay is actuated (closure of contact 1-3) when the pressure goes down to the actuation pressure [Pact] after preceding pressure increase up to the arming pressure [Parm] (closure of contact 1-2) greater than [Pact] by the value of differential D. Differential is the difference between the arming pressure [Parm] and the actuation pressure [Pact].

Electrical diagram

initial state

Ordering data

no more than
0,015 MPa
Designation in design documents (modification and version) Climatic version Actuation setpoint range Рsp Differential, D Maximum pressure Pmax (MPa) The reduced error of actuation pressure, ± γ,% Version 1 Version 2 Adjustable differential D
ТЖИУ.406423.003
ТЖИУ.406423.003.01		 UHL**1.1 0,04 - 0,10 MPa (0,30 - 0,50)
Рsp, MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.003-02
ТЖИУ.406423.003-03		 no more than
0,015 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.023
ТЖИУ.406423.023.01		 TV**2 (0,30 - 0,50)
Рsp, MPa		 +
-		 -
+		 +
+
+
-		 -
+		 -
-
ТЖИУ.406423.004
ТЖИУ.406423.004.01		 UHL**1.1 0,09 - 0,50 MPa no more than
0,100 MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.004-02
ТЖИУ.406423.004-03		 no more than
0,075 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.024
ТЖИУ.406423.024.01		 TV**2 0,09 - 0,50 MPa no more than
0,100MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.024-02
ТЖИУ.406423.024-03		 no more than
0,075 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.005
ТЖИУ.406423.005.01		 UHL**1.1 0,40 - 1,60 MPa no more than
0,25 MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.005-02
ТЖИУ.406423.005-03		 no more than
0,24 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.025
ТЖИУ.406423.025.01		 TV**2 no more than
0,25MPa		 +
-		 -
+		 +
+
ТЖИУ.406423.025-02
ТЖИУ.406423.025-03		 no more than
0,24 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.006
ТЖИУ.406423.006.01		 UHL**1.1 1,5 - 3,2 MPa no more than
0,60 MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.006-02
ТЖИУ.406423.006-03		 no more than
0,50 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.026
ТЖИУ.406423.026.01		 TV**2 no more than
0,60 MPa		 +
-		 -
+		 +
+
ТЖИУ.406423.026-02
ТЖИУ.406423.026-03		 no more than
0,50 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.008
ТЖИУ.406423.008.01		 UHL**1.1 2,5 - 10,0 kPa (0,30 - 0,50)
Рsp, kPa		 10,0 2,5 +
-		 -
+		 +
+
ТЖИУ.406423.008-02
ТЖИУ.406423.008-03		 no more than
2,0 kPa		 +
-		 -
+		 -
-
ТЖИУ.406423.028
ТЖИУ.406423.028.01		 TV**2 2,5 - 10,0 kPa (0,30 - 0,50)
Рsp,kPa		 +
-		 -
+		 +
+
ТЖИУ.406423.028-02
ТЖИУ.406423.028-03		 no more Than
2,0 kPa		 +
-		 -
+		 -
-
ТЖИУ.406423.009
ТЖИУ.406423.009.01		 UHL**1.1 10,0 - 40,0 kPa (0,30 - 0,50)
Рsp, kPa		 10,0 2,5 +
-		 -
+		 +
+
ТЖИУ.406423.009-02
ТЖИУ.406423.009-03		 no more than
5,0 kPa		 +
-		 -
+		 -
-
ТЖИУ.406423.029
ТЖИУ.406423.029.01		 TV**2 (0,30 - 0,50)
Рsp, kPa		 +
-		 -
+		 +
+
ТЖИУ.406423.029-02
ТЖИУ.406423.029-03		 no more than
5,0 kPa		 +
-		 -
+		 -
-
ТЖИУ.406423.012
ТЖИУ.406423.012.01		 UHL**1.1 3,0 - 6,0 MPa не более
1,4 MPa		 10,0 1,5 +
-		 -
+		 +
+
ТЖИУ.406423.012_02
ТЖИУ.406423.012_03		 no more than
0,8 MPa		 +
-		 -
+		 -
-
ТЖИУ.406423.022
ТЖИУ.406423.022.01		 TV**2 no more than
1,4 MPa		 +
-		 -
+		 +
+
ТЖИУ.406423.022_02
ТЖИУ.406423.022_03		 no more than
0,8 MPa		 +
-		 -
+		 -
-

Notes:

  1. All modifications and versions have the basic specification ТЖИУ.406423.002.
  2. After supplying into the relay working volume of the pressure from:
    - 1.15 of the upper value of the setting range Psp ps - for version 1;
    - 1,15 (Psp + Д) - для второго исполнения до Рmax допускается увеличение приведенной погрешности давления срабатывания до 5% в течение 72 ч.
  3. 3. Normalizing value Pn for the calculation of reduced error of actuation pressure for each modification and version equals to the upper limit of the setpoint range of this modification to the first two thirds of the setpoint range of this modification.
    For the last third of the setpoint range of modification, the normalizing value for calculating the reduced error of actuation pressure equals to:
    ТЖИУ.406423.003, ТЖИУ.406423.023 - 0,5 MPa;
    ТЖИУ.406423.004, ТЖИУ.406423.024 - 1,6 MPa;
    ТЖИУ.406423.005, ТЖИУ.406423.025 - 3,2 MPa;
    ТЖИУ.406423.006, ТЖИУ.406423.026 - 6,0 MPa;
    ТЖИУ.406423.008, ТЖИУ.406423.028 - 40,0 kPa;
    ТЖИУ.406423.009, ТЖИУ.406423.029 - 80,0 kPa;
    ТЖИУ.406423.012, ТЖИУ.406423.022 - 10,0 kPa.

Overall, mounting and connection dimensions

Overall, mounting and connection dimensions
1. Bolt M8x40.68.019 OST951435-73 3. Washer 8.65G.029 GOST6402-70
2. Nut M8.5.019 OST951452-73 4. Washer 8.01.0115 OST951464-73

ТЖИУ.406423.001RE user manual, Sadko-107 pressure relay pdf, 817 kb