CATALOGUE release 8.8

971 / 1278

Products designed for industrial applications.
General terms and conditions for sale are available on
3
Series MC soft start valves TREATMENT > CATALOGUE > Release 8.8
/2.35.03 3
TREATMENT
Pressurisation times as to the n° of turns of the regulation screw,
with downstream volume of 5 litres. A = 5 turns - B = 4 turns
- C = 3 turns - D = 2 turns - E = 1 turn. “K” = n° of turns of the
regulation screw required to obtain the required pressurisation
time with an inlet pressure of 6 bar. Variations of the inlet
pressure can cause deviations of the pressure time by ± 20%. K
= t/V where: V = volume of the downstream system in litres; t =
desired pressuring time in seconds.
Pressurisation times as to the n° of turns of the regulation screw,
with downstream volume of 5 litres. A = 9 turns - B = 7 turns - C =
5 turns - D = 3 turns - E = 1 turn. “K” = n° of turns of the regulation
screw required to obtain the required pressurisation time with an
inlet pressure of 6 bar. Variations of the inlet pressure can cause
deviations of the pressure time by ± 20%. K = t/V where: V =
volume of the downstream system in litres; t = desired pressuring
time in seconds.
DIAGRAMS FOR PRESSURISATION TIMES
Example: MC104-AV
V = 5 litres
t = 16 seconds
K = 16/5 = 3,2
g = number of turns
Using in the graph this value K, the number of turns of the
regulation screw will be approx. 1,8.
Example: MC238-AV - MC202-AV
V = 5 litres
t = 16 seconds
K = 16/5 = 3,2
g = number of turns
Using in the graph this value K, the number of turns of the
regulation screw will be approx. 1,8.
VARIATION IN PRESSURISATION - Example