Instruction Manual
34 © 2012, ROSS CONTROLS.
All Rights Reserved.
MINIATURE Regulators & Relief Valves
FEATURES:
•
Inline mounting
• Piston-type or diaphragm-type
• Self-relieving; optional non-relieving
• Pressure gauge
• Adjusting knobs are removable making
the regulators tamper-resistant
Ports: 1/8 & 1/4
Flow to 40 scfm
Piston
Diaphragm
0
20
40
60
80
psi g
100
OUTLET PRESSURE
G
ENERAL RE
G
ULATOR
bar
7
6
5
4
3
2
1
scf m
FLOW
l/s
05 10 15 20 25 30
0
24
68
1
0
12 14
Inlet Pressure 100 psig (6.9 bar)
FLOW CHARTS
0
10
20
30
40
psi g
50
OUTLET PRESSURE
PRECISION REGULATOR
bar
3. 5
3
2. 5
2
1. 5
1
0. 5
scf m
FLOW
l/s
0123456
0 0. 41 .2 2.0 2.8
Inlet Pressure 91 psig (6.3 bar)
0
10
20
30
40
60
RELIEF FLOW scfm
RELIEF VALVE
5
psi g
INLET
PRESSURE
bar
01 02 03 04 05 06 0
0
50
10
15
20
25
RELIEF FLOW l/s
1 2 3 4
0
70 80 90 100 11 0
120
5 6 7 8
1/8 General 20 (9.4) 0-50 (0-3.4) 5212C1004 5212C1005
General 20 (9.4) 0-100 (0-6.9) 5211C1004 5211C1005
General 20 (9.4) 0-125 (0-8.6) 5213C1004 5213C1005
Precision* 4 (1.9) 0-50 (0-3.4)* — 5212C1006
Relief 40 (18.9) 1-140 (0.07-9.6) — 5210B1001
Relief 40 (18.9) 1-15 (0.07-1.0) — 5210B1002
Relief 40 (18.9) 1-30 (0.07-2.1) — 5210B1003
Relief 40 (18.9) 1-50 (0.07-3.4) — 5210B1004
1/4 General 20 (9.4) 0-50 (0.07-3.4) 5212C2004 5212C2005
General 20 (9.4) 0-100 (0.07-6.9) 5211C2004 5211C2005
General 20 (9.4) 0-125 (0.07-8.6) 5213C2004 5213C2005
Precision* 4 (1.9) 0-50 (0.07-3.4)* — 5212C2006
Relief 40 (18.9) 1-140 (0.07-9.6) — 5210B2001
Relief 40 (18.9) 1-15 (0.07-1.0) — 5210B2002
Relief 40 (18.9) 1-30 (0.07-2.1) — 5210B2003
Relief 40 (18.9) 1-50 (0.07-3.4) — 5210B2004
** For comparison with filters and lubricators.
* For 0-5 psig (0-0.34 bar), 0-10 psig (0-0.7 bar), 0-20 psig (0-1.4 bar), and 0-60 psig
(0-4.1 bar) ranges, consult ROSS.
Regulated
Port Flow Rating** Pressure Piston Diaphragm
Size Service scfm (l/s) psig (bar) Type Models Type Models
A
C
B
0
BAR
100 x kPa
psi
1
20
1
6
0
2
0
0
8
0
4
0
0
2
4
68
10
12
14
A
C
B
0
BAR
100 x kPa
psi
120
160
200
8
0
40
0
2
4
68
10
12
14
STANDARD SPECIFICATIONS (for products on this page):
Ambient/Media Temperature: 40° to 125°F (4° to 52°C).
Body: Aluminum.
Dome and Knob: Acetal.
Fluid Media: Compressed air.
Inlet Pressure: 300 psig (20.7 bar) maximum.
Outlet Pressure: Adjustable up to 100 psig (6.9 bar).
Pressure Gauge: 0 to 160 psig (0 to 11 bar); 1/8 NPT gauge
ports front and rear.
Panel Mounting: 1-3/16 inch (30 mm) hole required.
Seals: Nitrile.
Threads: NPT standard, BSPP. For BSPP threads, add a “C”
prefix to the model number, e.g., C5212C1004.
Precision Regulators have a small valve seat and a large diaphragm
area, a combination that allows greater precision, sensitivity, adjustment
resolution, and less variation in regulated pressure.
Relief Valves have maximum relief flows of 10 to 20 scfm (4.7 to 9.4 l/s).
For models with increased sensitivity at lower pressure, consult ROSS.
Port DIMENSIONS inches (mm) Weight †
Size A B C Depth † lb (kg)
1/8 1.6 (41) 2.6 (65) 0.4 (10) 1.6 (41) 0.24 (0.11)
1/4 1.8 (44) 3.4 (86) 0.4 (10) 1.8 (44) 0.38 (0.16)
† Less gauge.
IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.
ISO Symbol
Regulator
Self-Relieving Non-Relieving
General Purpose
Regulator
Precision
Regulator