PIETRO FIORENTINI Dival SQD-1, Technical Manual

Page: 8 / 36

8
Dival SQD-1 - MT 234-E - 02-2020
EN DESCRIPTION
1.3 Tab. 2 SETTING SPRINGS
Table 2 shows the calibration fields of the different foreseen springs.
- 1 Code n° 64470024BI is for internal relief application (10 -18 mbar) *
- 2 Code n° 64470031RO is for internal relief application (10 -50 mbar) *
- 3 Code n° 64470038GI is for internal relief application (30 -100 mbar) *
* Differential relief valve operating pressure with reference to the nominal outlet pressure (Pd)
SPRINGS CHARACTERISTICS SQD 100 BP
Code Colour De Lo d Setting range (mbar)
64470137RO RED 34 115 1.8 13 - 18
64470024BI WITE 15 45 1.3
64470068GI YELLOW 34 115 2 19 - 25
64470031RO RED 15 40 1.7
64470139NE BLACK 34 115 2.2 26 - 35
64470031RO RED 15 40 1.7
64470140MA BROWN 34 106 2.7 36 - 65
64470031RO RED 15 40 1.7
64470071GR GREY 34 118 2.8 66 - 100
64470031RO RED 15 40 1.7
De = external diameter d = wire diameter Lo = length * = for internal relief valve
Springs Tab. 2
43 43
42 42
20 20
70 70
73 73
43 43
42 42
Z Z
20 20
70 70
Fig.2a Particular spring Fig. 2b
SPRINGS CHARACTERISTICS SQD 100 MP
Code Colour De Lo d Setting range (mbar)
64470141VE GREEN 34 120 3.2 101 - 170
64470038GI YELLOW 15 40 2
64470329AZ LIGHT BLUE 34 111 3.8 171 - 300
64470038GI YELLOW 15 40 2
De = external diameter d = wire diameter Lo = length * = for internal relief valve
Springs Tab. 2