Shavo's VayuTM Series Intermediate Range Pressure Regulator Diaphragm operated, respond to flow demand and line pressure changes efficiently
Positive valve sealing, large passages & operating to give free air flow
Large size low torque knob to adjust pressure make it Designers' first choice
a
MODEL SR20
Parameters
Specifications
Pipe Threads
G 1/4, 3/8, 1/2 Parallel (F)
- Standard
BSPTr. / NPT
- Optional
Type
Relieving diaphragm
- Standard
Non-Relieving diaphragm
- Optional
Body Material
Al. Alloy die-cast
- Standard
Adjustment
Non-rising plastic knob
- Standard
Metal "T" Handle
- Optional
Maximum Inlet Pressure
21.0 kg/cm2 (300 psig)
Max. Operating Temp. (ambient)
80ºC (175º F)
Regulated secondary outlet
pressure(spring range) and
recommended pressure gauge
ranges available (in kg/cm2)
Spring Range
Gauge Range
0.40 to 4.00 kg/cm2
0 - 4 kg/cm2
0.87 to 8.75 kg/cm2
0 - 10 kg/cm2
1.00 to 10.0 kg/cm2
0 - 16 kg/cm2
1.75 to 17.5 kg/cm2
0 - 20 kg/cm2
Gauge size
40 mm OD
Gauge Port size
Rc 1/8 BSPTr.
Gauge connection
Back
Standard Nominal Flow rate (at 10 bar supply pressure and 1 bar drop in 6 bar sec.pressure)
G 1/4
40 dm3/sec (84 scfm)
G 3/8
45 dm3/sec (95 scfm)
G 1/2
50 dm3/sec (105 scfm)
Mounting Bracket
Optional
Panel mounting
Standard - Available
Size
Flow (dm3/s)
Range Kg/cm2
Operation
Model
G 1/4
38 dm³/sec
0-8.75
Relieving
SR20-2G-RNMN
G 3/8
40 dm³/sec
0-8.75
Relieving
SR20-3G-RNMN
G 1/2
40 dm³/sec
0-8.75
Relieving
SR20-4G-RNMN
OPTION SELECTOR
Sample Model Number
S
R
2
0
K
-
2
G
-
R
N
M
N
Position
0
1
2
3
4
-
5
6
-
7
8
9
10
0
S = Shavo
1
Product
R= Regulator
2
3
Series
20 = "Vayu"-3/8" Basic
4
Pipe Size
K = Knob Type (Nitrile Elastomers)
E = Knob Type (EPDM Elastomers)
V = Knob Type (Viton Elastomers)
T = T Handle Type (Nitrile Elastomers)
F = T Handle Type (EPDM Elastomers)
W = T Handle Type (Viton Elastomers)
5
Size
2 = 1/4"
3 = 3/8"
4 = 1/2"
6
Port Thread
Main Port
Gauge Port
A
NPT
BSPT
B
BSPT
BSPT
G
BSP
BSPT
N
NPT
NPT
J
Japanese PT
7
Relief
R = Relieving
N = Non-Relieving
8
Gauge
N = No Pr. Guage
G = With Pr. Guage
9
Sec. Pr. Range
F = 0.40 - 4.00 Kg/sq cm
L = 0.85 - 8.75 Kg/sq cm
M = 1.00-10.00 Kg/sq cm
+*S = 1.75 - 17.50 Kg/sq cm
10
Mounting &
Accessories
N = No Mounting Bracket
B = Wall Mounting Bracket Fitted
Note: Panel mounting nut is Std. on all SR20 units.
+ * available only with "T" handle
Pressure Regulator
