PA VB 40/1000 Zero, Руководство по установке

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Ultimo aggiornamento: 15/11/19
1
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ART. 2497
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VB 40/1000 Zero
-
Flow sensitive unloader valve
PATENTED
Pressure regulating valve unloader type with zero setting on delivery line: at
gun closure the water flow is bypassed at low pressure maintaining also the
delivery line in low pressure.
Technical manual
: MPA0004EN
DN 10
TECHNICAL SPECIFICATIONS
Construction material : Sst.
PART
NUMBER
MINIMUM
FLOW
MAXIMUM
FLOW
WORK
PRESSURE
ADJUSTABLE
MINIMUM
PRESSURE
MAX
TEMPERATURE
(1)
WEIGHT IN
OUT
BYPASS
l /min USG l / min USG bar MPa bar MPa °C °F g oz.
60.2900.00 9 2.4 40 10.5 1000 100 500 50 95 203 4650 164
G 3/8” F G 3/8” F
60.2900.12 9 2.4 15 4.0 1000 100 500 50 95 203 4650 164
G 3/8” F
G 3/8
” M
60.2900.20 9 2.4 25 6.5 1000 100 500 50 95 203 4650 164 G
3/8” F
G 3/8
” M
60.2900.30 9 2.4 35 9.2 1000 100 500 50 95 203 4650 164
G 3/8” F
G 3/8
” M
1)
The valve has been designed for a continuous use at a water temperature of 60°C (140°F) .
It can work for short periods at a maximum temperature of 95°C (203°F) .
•
60.2900.XX VB 40/1000 Zero G 3/8
” FF
o
Near total zero setting of the pressure in the delivery line at gun closure.
Advantages:
▪
Increased safety for the operator.
▪
Delivery hose easy to control when gun is closed.
▪
Less force needed to reopen the gun.
o
At gun reopening, work pressure is reached gradually.
Advantages:
▪
Operators work less heavy.
▪
Easy starting if thermal engine is used.
o
Reduced pressure loss and hardly dependent on flow rate.
o
Great reliability.
o
Easy maintenance.
o
Three versions with different working pressure but one sole range of flow
rate from 9 up to 40 l/min.
▪