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Stainless Steel - (77) (G 1/8 , G 1/4 )
features
  • Shavo's' Pressure Regulator Model SR77 is designed as a high-performance product for instrument air use in corrosive atmospheres
  • Applications include marine environments, oil and gas production, chemicals and food processing, medical analysis etc
  • External Metallic parts meet NACE standard MR-0175*
  • CE, ATEX, EAC Ex (CUTR 12), EAC (CUTR 10) approved
  • SIL3 capable as per IEC 61508
  • All External parts are NACE MR 0175* approved

(*National Association of Corrosion Engineers MR-0175 defines requirements for sulphide stress cracking resistant materials used in oilwells and other corrosive environments.)
MODEL SR77
Parameters Specifications
Fluid Compressed Air
Pipe Sizes 1/8”, 1/4"
Port Thread NPT - Standard
BSPT, BSP - Optional
Max. Inlet Pressure 30 bar (435 psi)
Max.Operating Temp. (Ambient) +80° c
Material of Construction Stainless Steel as per AISI 316L
Body, Bonnet
Internal parts
External parts 		SS 316 with NACE compliance (MR 0175)
SS 316U SS 304
SS 316L with NACE compliance (MR 0175)
Diaphragm Assembly Synthetic Rubber without PTFE - Standard
Elastomers Low Temp. Nitrile (LNBR)  - 60°C to +80°C
EPDM - 35°C to +120°C
Fluorocarbon (Viton-FKM) - 20°c to +180°C
Standard Nominal Flow Rate at 10 bar (150psi) inlet pressure 6 bar (87 psi) set pr. and a drop of 1 bar(14.5 psi) from set 1/8" - 19 scfm (8.9 dm3/sec)
1/4" - 21 scfm (9.8 dm3/sec)
CV Value 1/8" - (0.35)
1/4" - (0.39)
Type Relieving - Standard
Non Relieving - Optional
Pressure Adjustment Allen Head Adiusting screw
Regulated secondary pressure ranges 0.70 - 7.0 bar (10.0- 100 psi) - Standard
0.07 - 0.70 bar (1- 10 psi) - Optional
0.21 - 2.10 bar (3 - 30 psi) - Optional
0.35 - 3.50 bar (5 - 50 psi) - Optional
1.00 - 10.0 bar (15- 150 psi) - Optional
Gauge Port (2 nos.) 1/8" BSPT (Fe) - Standard
1/4" NPT (Fe) - Optional
Gauge size (dial size) 50 mm (Nominal)
Mounting P.M. NUT - Standard
Wall Mounting Bracket - Optional
Weight 0.3 Kgs
Pressure Gauge (scale) Kg/cm2 (PSI) - Standard (For Domestic Market)
Bar (PSI) - Standard (Export)

Note:
1) Pressure gauge will not have the CE, EAC, SIL3 and NACE MR 0175 approval
2) Pressure gauge will have the ATEX Approval
3) PM Nut, Mounting Bracket, Grub Screw will not have NACE MR 0175 approval

Size Flow (dm3/s) Range (psi) Operation Model
G 1/8 19 scfm (8.9 dm3/sec) 10 - 100 psi Relieving SR77-172-RNKAN-A
G 1/4 21 scfm (9.8 dm3/sec) 10 - 100 psi Relieving SR77-272-RNKAN-A
OPTION SELECTOR
 
Sample Model Number
S R 7 7
-
2 2 1
-
R N K A N
-
X X X
-
X X X
   
Position
0 1 2 3
-
4 5 6
-
7 8 9 10 11
-
12 13 14
-
15 16 17
   
0
   
S = Shavo
   
1
Product
Regulator
 
2 3
Series
77 = Miniature with S.S.316L (MOC)
 
4
Port Size
1 =  1/8"
2 =  1/4"
 
5 6
Options
 
Bonnet Material Elastomer Material
Low Temp. Nitrile EPDM VITON
S.S. 316L 75 [72] [73]
 
7
Relief
R    =    Relieving
N    =    Non Relieving
 
8
Gauge
N    =  No. Pr. Gauge
G    = With Pr. Gauge Fitted (S.S.) (SS 316 with ATEX approved)
 
9
Sec. Pr. Range
A = 0.07 - 0.7 bar (1-10 psi)
C = 0.21 - 2.1 bar (3-30 psi)
E = 0.35 - 3.5 bar (5-50 psi)
K = 0.70 - 7.0 bar (10-100 psi)
M = 1.0 - 10.0 bar (15-150 psi)
 
10
Port Thread
  Main Port Gauge Port
A NPT BSPT
B BSPT BSPT
G BSP BSPT
N NPT NPT
 
11
Mounting & Accessories
N  =  No Mounting Bracket
B  =  Wall Mounting Bracket (SS)
[P] = 2' Pipe Mounting Bracket
 
 
12 13 14
Test / Approval
A 0 0 ATEX
A 0 1 UKEX
A 0 2 UKCA
A 0 3 ATEX, UKEX, EAC Ex,UKCA
A 0 4 ATEX, UKEX, EAC Ex
A 0 5 ATEX, UKEX, UKCA
A 0 6 ATEX, UKEX, EAC Ex
B 0 0 ATEX, CE
B 0 1 ATEX, CE, UKEX, EAC Ex, UKCA
B 0 2 ATEX, CE, UKEX, EAC Ex
B 0 3 ATEX, CE , UKEX, UKCA
B 0 4 ATEX, CE, UKCA, EAC Ex
B 0 5 ATEX, CE, EAC Ex
C 0 0 CE
C 0 1 CE, UKEX, EAC Ex, UKCA
C 0 2 CE, UKEX, EAC Ex
C 0 3 CE, UKEX, UKCA
C 0 4 CE, EAC Ex, UKCA
C 0 5 CE, EAC Ex
D 0 0 ATEX, EAC
D 0 1 ATEX, EAC, UKEX, EAC Ex, UKCA
D 0 2 ATEX, EAC, UKEX, EAC Ex
D 0 3 ATEX, EAC, UKEX, UKCA
D 0 4 ATEX, EAC, EAC Ex, UKCA
E 0 0 EAC
E 0 1 EAC, UKEX, EAC Ex, UKCA
E 0 2 EAC, UKEX, EAC Ex
E 0 3 EAC, UKEX, UKCA
E 0 4 EAC, EAC Ex, UKCA
F 0 0 ATEX, SIL3
F 0 1 ATEX, SIL3, UKEX, EAC Ex, UKCA
F 0 2 ATEX, SIL3, UKEX, EAC Ex
F 0 3 ATEX, SIL3, UKEX, UKCA
F 0 4 ATEX, SIL3, EAC Ex, UKCA
F 0 5 ATEX, SIL3, EAC Ex
G 0 0 CE, EAC
G 0 1 CE, EAC, UKEX, EAC Ex, UKCA
G 0 2 CE, EAC, UKEX, EAC Ex
G 0 3 CE, EAC, UKEX, UKCA
G 0 4 CE, EAC, EAC Ex, UKCA
H 0 0 CE, SIL3
H 0 1 CE, SIL3, UKEX, EAC Ex, UKCA
H 0 2 CE, SIL3, UKEX, EAC Ex
H 0 3 CE, SIL3, UKEX, UKCA
H 0 4 CE, SIL3, EAC Ex, UKCA
H 0 5 CE, SIL3, EAC Ex
J 0 0 EAC, SIL3
J 0 1 EAC, SIL3, UKEX, EAC Ex, UKCA
J 0 2 EAC, SIL3, UKEX, EAC Ex
J 0 3 EAC, SIL3, UKEX, UKCA
J 0 4 EAC, SIL3, EAC Ex, UKCA
K 0 0 CE, EAC, SIL3
K 0 1 CE, EAC, SIL3, UKEX, EAC Ex, UKCA
K 0 2 CE, EAC, SIL3, UKEX, UKCA
K 0 3 CE, EAC, SIL3, UKEX, EAC Ex
K 0 4 CE, EAC, SIL3, EAC Ex, UKCA
L 0 0 ATEX, EAC, SIL3
L 0 1 ATEX, EAC, SIL3, UKEX, EAC Ex, UKCA
L 0 2 ATEX, EAC, SIL3, UKEX, EAC Ex
L 0 3 ATEX, EAC, SIL3, UKEX, UKCA
L 0 4 ATEX, EAC, SIL3, EAC Ex, UKCA
M 0 0 ATEX, CE, SIL3
M 0 1 ATEX, CE, SIL3, UKEX, EAC Ex, UKCA
M 0 2 ATEX, CE, SIL3, UKEX, EAC Ex
M 0 3 ATEX, CE, SIL3, UKEX, UKCA
M 0 4 ATEX, CE, SIL3, EAC Ex, UKCA
N 0 0 ATEX, CE, EAC
N 0 1 ATEX, CE, EAC, UKEX, EAC Ex, UKCA
N 0 2 ATEX, CE, EAC, UKEX, EAC Ex
N 0 3 ATEX, CE, EAC, UKEX, UKCA
N 0 4 ATEX, CE, EAC, EAC Ex, UKCA
[O] [0] [0] Other customer special requirement if Any
P 0 0 ATEX, CE, EAC, SIL3
P 0 1 ATEX, CE, EAC, SIL3, UKEX, EAC Ex, UKCA
P 0 2 ATEX, CE, EAC, SIL3, UKEX, EAC Ex
P 0 3 ATEX, CE, EAC, SIL3, UKEX, UKCA
P 0 4 ATEX, CE, EAC, SIL3, EAC Ex, UKCA
Q 0 0 ATEX, EAC Ex
R 0 0 EAC Ex
R 0 1 EAC Ex, UKEX, UKCA
R 0 2 EAC Ex, UKCA
S 0 0 SIL3
S 0 1 SIL3, UKEX, EAC Ex, UKCA
S 0 2 SIL3, UKEX, EAC Ex
S 0 3 SIL3, UKEX, UKCA
S 0 4 SIL3, EAC Ex, UKCA
V 0 0 ATEX, CE, SIL3, EAC Ex
V 0 1 ATEX, CE, SIL3, EAC Ex, UKEX, UKCA
V 0 2 ATEX, CE, SIL3, EAC Ex, UKEX
V 0 3 ATEX, CE, SIL3, EAC Ex, UKCA
X X X STANDARD UNITS WITHOUT ANY CERTIFICATE / APPROVAL
Y 0 0 ATEX, SIL3, EACEx
y 0 1 ATEX, SIL3, EACEx, UKEX, UKCA
Y 0 2 ATEX, SIL3, EAC Ex, UKEX
Y 0 3 ATEX, SIL3, EACEx, UKCA
Z 0 1 CE, SIL3, EAC Ex, UKEX, UKCA
Z 0 2 CE, SIL3, EAC Ex, UKEX
Z 0 3 CE, SIL3, EAC Ex, UKCA
 
15 16 17
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.
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