Stainless Steel - (77) (G 1/8 , G 1/4 )
features
  • 'Shavo's' 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
  • CE, EAC [CUTR10 (equivalent to GOST R&K)] approved
  • SIL 3 capable as per IEC 61508
  • External Metallic parts meet NACE standard MR-0175*

(*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 435 psig (30 bar)
Max. Operating Temperature (Ambient) +80°C
Material of Construction Stainless Steel as per AISI 316L
Body. Bonnet
Internal Parts
External Parts
SS 316L with NACE Compliance (MR 0175)
SS 316L
SS 316L with NACE Compliance (MR 0175)
Diaphragm Assembly Synthetic Rubber without PTFE - Standard
Elastomers Low Temperature Nitrile Elastomer (LNBR) -60 to +80°C
EPDM -35 to +120°C
Fluorocarbon (Viton-FKM) -20 to +180°C
Nitrile (NBR) -20 to +80°C
Standard nominal flow rate [At supply pressure of 150 psi (10.3) and 14.5 psi (1 bar) drop in sec. pressure of 87 psi (6bar)] 1/8"     17 scfm (8 dm3/sec) CV(0.32)
1/4"     20 scfm (10 dm3/sec) CV(0.38)
Type Relieving - Standard
Non-Relieving - Optional
Pressure Adjustment Allen Head Adjusting Screw
Regulated Sec. Pr. Ranges 10-100 psi (0.70 to 7.0 bar) - Standard
1-10 psi (0.07 to 0.70 bar) - Optional
3-30 psi (0.21 to 2.10 bar) - Optional
5-50 psi (0.35 to 3.50 bar) - Optional
15.0-150 psi (1.0 to 10.0 bar) - Optional
Gauge Port (2 nos.) 1/4” BSPT (Fe) - Standard
1/4” NPT (Fe) - Optional
Gauge Size (Dial Size) 40 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) PM Nut, Mounting Bracket, Grub Screw will not have the NACE MR0175 approval
2) Pressure gauge will not have the CE, EAC, SIL3& NACE MR0175 approval

Size Flow (dm3/s) Range (psi) Operation Model
G 1/8 17 scfm
(8 dm3/sec)
10-100 psi Relieving SR77-172-RNKAN-A
G 1/4 20 scfm
(10 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. 316 (MOC)
 
4
Port Size
1 =  1/8"
2 =  1/4"
 
5 6
Options
 
Bonnet Material Elastomer Material
Low Temp. Nitrile EPDM Viton Nitrile
Plastic [25] [22] [23] 21
S.S.316 [75] [72] [73] 71
 
7
Function
R    =    Relieving
N    =    Non Relieving
 
8
Pr. Gauge
N    =   No Gauge
G    =   With Gauge [S.S. 40 mm (Without any certifications)]
 
9
Sec. Pr. Range
A = 1 - 10 psi (0.07 - 0.7 bar)
C = 3 - 30 psi (0.21 - 2.1 bar)
E = 5 - 50 psi (0.35 - 3.5 bar)
K = 10 - 100 psi (0.70 - 7.0 bar)
M = 15 - 150 psi (1.0 - 10.0 bar)
 
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
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
 
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: Panel Mounting Nut is Standard for all units.
            Option shown in the [ ] bracket are special, Please contact Sales HQ/Manufacturing.
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