Pressure Regulator SR20

Vayu Intermediate Series - (20) ( G 1/4 , G 3/8 , G 1/2)

features

Shavo's Vayu^TM 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

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 / Hex Head		- Optional
Maximum Inlet Pressure	300 psig (20 bar)
Max. Operating Temp. (ambient)	80ºC
Regulated secondary outlet pressure (spring range) and recommended pressure gauge ranges available in psig (bar)	Spring Range		Gauge Range
	6-60 psi (0.40 - 4.00 bar)		0-60 psi (0 - 4 bar)
	12-125 psi (0.87- 8.75 bar)		0-150 psi (0 - 10 bar)
	3-30 psi (0.21 to 2.10 bar)		0-30 psi (0 to 2.5 bar)
	25-250 psi (1.70 - 17.5 bar)		0-300 psi (0 - 20 bar)
	15-150 psi (1.00 - 10.0 bar)		0-220 psi (0 to 16.0 bar)
Gauge size	40 mm (Dial Size)
Gauge Port size	Rc 1/8 BSP Tr.
Gauge connection	Back
Standard Nominal Flow rate at 10 bar (150 PSI) Inlet pressure 6 bar (87 PSI) set pressure and a drop of 1 bar (14.5 PSI) from set	G 1/4	100 scfm (48 dm³/sec) CV (1.89)
	G 3/8	219 scfm (104 dm³/sec) CV (4.13)
	G 1/2	267 scfm (127 dm³/sec) CV (5.03)
Mounting Bracket	Optional
Panel mounting	Standard - Available
Pressure Gauge (scale)	Kg/cm² (PSI)	- Standard (For Domestic Market)
	Bar (PSI)	- Standard (Export)

Note: Pressure gauge will not have the CE, EAC & SIL3 approval.

Size	Flow	Range (psi)	Operation	Model
G 1/4	100 scfm (48 dm³/sec)	12-125 psi	Relieving	SR20K-2G-RNMN
G 3/8	219 scfm (104 dm³/sec)	12-125 psi	Relieving	SR20K-3G-RNMN
G 1/2	267 scfm (127 dm³/sec)	12-125 psi	Relieving	SR20K-4G-RNMN

OPTION SELECTOR

Sample Model Number

Position

S = Shavo

Product

R= Regulator

Series

20 = "Vayu"-3/8" Basic

Pipe Size

K = Knob Type (Nitrile Elastomer)
[E] = Knob Type (EPDM Elastomer)
[V]= Knob Type (Viton Elastomer)
[Z] = Knob Type (Low Temperature Nitrile Elastomer)
[T]= T-Handle Type (Nitrile Elastomer)
[F]= T-Handle Type (EPDM Elastomer)
[W] = T-Handle Type (Viton Elastomer)
[L] = T-Handle Type (Low Temperature Nitrile Elastomer)
[H] = Hex Headed Type (Low Temperature Nitrile Elastomer)
[Q] = Hex Headed Type (EPDM Elastomer)
[U] = Hex Headed Type (Viton Elastomer)
[Y] = Hex Headed Type (Nitrile Elastomer)

Size

2 = 1/4"
3 = 3/8"
4 = 1/2"

Port Thread

	Main Port	Gauge Port
A	NPT	BSPT
B	BSPT	BSPT
G	BSP	BSPT
N	NPT	NPT

Relief

R = Relieving
N = Non-Relieving

Gauge

N = No Guage

G = With Guage (Without any Certification)

Sec. Pr. Range

C = 3 - 30 psi (0.21 - 2.1 bar)

F = 6 - 60 psi (0.4 - 4 bar)

L = 12 - 125 psi (0.87 - 8.75 bar)

M = 15 - 150 psi (1.0 - 10.0 bar)

S = 25 - 250 psi (1.70 - 17.5 bar) [Option is available with hex headed type screw only]

Mounting & Accessories

N = No Mounting Bracket
B = Wall Mounting Bracket Fitted
L = With ‘L’ Type Bracket

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Test / Approval

C	0	0	CE
C	0	1	UKCA
C	0	2	CE, UKCA
E	0	0	EAC
E	0	1	EAC, UKCA
S	0	0	SIL3
S	0	1	SIL3, UKCA
G	0	0	CE, EAC
G	0	1	CE, EAC, UKCA
H	0	0	CE, SIL3
H	0	1	CE, SIL3, UKCA
K	0	0	CE, EAC, SIL3
K	0	1	CE, EAC, SIL3, UKCA
X	X	X	Standard Units Without Any Certificatios / Approval
[O]	[0]	[0]	Other Customer Special Requirement if Any

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Compliance

X	X	X	Standard Unit Without any Compliance
A	0	1	RoHS 3 Compliance
A	0	2	REACH Compliance
A	0	3	Copper Free (Only Applicable Aluminium Version)
A	0	4	RoHS3, REACH Compliance
A	0	5	RoHS3, REACH, Copper Free (Only Applicable for Aluminium Version)
A	0	6	RoHS3, Copper Free (Only Applicable for Aluminium Version)
A	0	7	REACH, Copper Free (Only Applicable for Aluminium Version)

Note: Option shown in the [ ] bracket are special, Please contact Sales HQ/Manufacturing.
Panel mounting nut is Std. on all SR20 units.