VACUVENT VA Series, Руководство пользователя

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Independent Valve Marketing (Pty) Ltd
Engineering Page 4 of 18
VSS0203WD00
GENERAL SPECIFICATION
SCREWED – DN25 (1”), DN50 (2”)
Figure 1- Overall Dimensions
DN Model
No.
PN H D Weight
Inch Psi Inch Inch Lbs
1 025VA25 363 13.2 3.8 9.5
1 025VA40 580 15.7 3.8 12.3
2 050VA25 363 15.2 4.8 13.2
2 050VA40 580 18.7 4.8 16.5
Type:
Double Orifice (Small and large orifice) with Anti-Shock Orifice Mechanism
End Connection:
Screwed BSP or NPT male
Nominal Size
DN25 (1”) and DN50 (2”)
Model No’s
See Table
Operating Pressure
PN25 0.5 bar (7.2 psi) – 25 bar (363 psi)
PN40 0.5 bar (7.2 psi) – 40 bar (580 psi)
Operating Temperature
4
o
C (40
o
F) to 85
o
C (185
o
F)
Acceptable Media:
Potable or strained raw water
Function:
1. High Volume Air Discharge for pipeline filling
2. Pressurized Air Discharge for air in filled pipeline
3. High volume Air Intake for pipeline draining
4. Anti-shock- surge dampening