Performance Characteristics - Honeywell vk41 series Handbook

PERFORMANCE CHARACTERISTICS

Maximum allowable leakage
Each gas control is factory tested to meet the following
leakage requirements:
3
• outerwall: 50 cm
/h at test pressure of 150 mbar.
3
• safety valve: 40 cm
/h at test pressure of 6 and 150 mbar.
• main valve (plus operator inlet valve): 40 cm
pressure of 6 and 150 mbar.
Outlet pressure adjustment range capability
Manuf./Natural/LP gas:
1.5 ... 20 mbar
2 ... 37 mbar with block function up to 50 mbar
LP gas: 5 ... 60 mbar.
Minimum adjustable capacity
For versions with a throttle valve (suffix E/T/VE) the minimum
adjustable capacity is 0.6 m3/h air at ∆P of 20 mbar.
Pilot flow
Pilot flow capacity is more than 0.1 m
pressure drop.
Recovery time of servo system
The recovery time of the adjustable
minimum position is within 15 seconds from operator
de-energization and in maximum position the recovery time
shall be within 30 seconds from operator de-energization.
High pressure test
In the "OFF" condition, the gas control will withstand 3 bar (air)
inlet pressure without damage. Attempts to operate the gas
control, while in this fault condition will not damage it.
Operable voltage range
The gas control will function satisfactory between 85% and
Table 13: Main valve (class D only) opening characteristics s
Inlet
SOFTLITE
number pressure
(mbar)
3 20
5 20
7
7 37
7 50
3
/h at test
3
/h at 9 mbar
system in
SOFTLITE
Kind of gas Dead time (s) max
Upright
positon
G 20/25 1.8
G 20/25 1.2
G 30/31 1.5
G 30/31 1.2
110% of the rated voltage.
.
Table 12: Operable voltage range
Rated voltage
24 Vac, 50/60 Hz
100 Vac, 50/60 Hz
220/240 Vac, 50/60 Hz
Valve closing characteristics
The gas control will close within 1 second from operator de-
energization, (at an inlet pressure of 22.5 mbar and minimal
2.5 mbar pressure drop).
Main valve opening characteristics (measured with gas)
Fast opening versions
Under conditions where the supply pressure is at least 2.5
mbar above the outlet pressure setting, the dead time shall be
0.5 s maximum.
The outlet pressure will reach 80% of the rated flow within 1
second from start of flow.
Full outlet pressure will be reached within 5 seconds.
versions (See table 13)
SOFTLITE
The adjusted outlet pressure will be reached between 5 and
15 seconds from start of flow (for LP gas between 4 and 10
seconds)
Adjustable
SOFTLITE
NOTE: For versions the
SOFTLITE
adjusted from the rated
value.
OFTLITE
Outlet pressure (mbar)
1.5 s after start of flow
Horizontal
(in min. position)
position
1.5 1 ... 3.5
1.0 2.5 ... 6.0
4.5 ... 7.5
1.2 2.5 ... 6.5
1.0 2.5 ... 6.5
19
Operable voltage
19.5 ... 27 Vac
85 ... 110 Vac
187 ... 264 Vac
pressure can be
SOFTLITE
up to the desired
SOFTLITE
versions
Outlet pressure (mbar)
1.5 s after start of flow
(in max. position)
> 12
> 12
> 16
> 19
EN2R-9004 0606R20-NE