Ross Controls GENERAL PURPOSE REGULATORS - Manual (Page 5)

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FEATURES:
• Modular or inline mounting; modular mounting allows regulators to be
positioned at increments of 45° for ease in adjustment
• Self-relieving diaphragm design, with large diaphragm sensing ratio
• Non-relieving - optional
• Pressure adjustment locking key; tamper-resistant pressure setting
• Reverse flow - optional
0 20 scfm
FLOW
l/s 0 10
20
psi
100
OUTLET PRESSURE
1.4
2.8
4.2
5.6
bar
7.0 Inlet Pressure: 100 psig (6.9 bar)
0 scfm
FLOW
l/s 0
0 0
40 60 80 100 120 140 160 180 200 220
20 30 40 50 60 70 80 90 100
3/4 Ports
3/8 Ports
1/2 Ports
40
60
80
20
psi
100
OUTLET PRESSURE
1.4
2.8
4.2
5.6
bar
7.0
0 0
40
60
80
20
psi
100
OUTLET PRESSURE
1.4
2.8
4.2
5.6
bar
7.0
0 0
40
60
80
240
110
FLOW CHARTS
Ports: 3/8, 1/2, 3/4
Flow to 220 scfm
MD4 TM Modular General Purpose Regulators
STANDARD SPECIFICATIONS (for products on this page):
Ambient/Media Temperature: 40° to 175°F (4° to 79°C).
Body: Zinc.
Dome: Nylon; aluminum with optional 0 to 175 psig (0 to 12.1 bar)
spring.
Cap Color: Gold standard; optional gray, yellow, red, blue.
Fluid Media: Compressed air.
Inlet Pressure: 300 psig (20.7 bar) maximum.
Knob: Acetal.
Outlet Pressure: Adjustable up to 125 psig (8.6 bar); optional
adjusting springs. Pressure Adjustment Locking Key: Removable.
Pressure Gauge: 0 to 200 psig (0 to 14 bar);
1/4 NPT gauge ports front and rear.
Panel Mounting: 2-1/16 inch (52 mm) hole required.
Seals: Nitrile.
Self-relieving: Non-relieving optional, consult ROSS.
Valve: Brass.
Valve Cap: Nylon.
Threads: NPT standard, BSPP, SAE.
A
C
B
0
B A R 1 0 0 x k Pa p s i
12 0
1 6 0
200
80
4 0
0
2
4 6 8
10
12
14
HOW TO ORDER
ADJUSTMENT TYPE
52K - Knob (standard)
52T - Tee Handle
ADJUSTMENT RANGE
A - 0-175 psig (0-12.1 bar)
B - 0-125 psig (0-8.6 bar)
standard
C - 0-50 psig (0-3.4 bar)
D - 0-20 psig (0-1.4 bar)
FLOW OPTIONS
R - Reverse Flow
S - Standard (standard)
GAUGE
A - No Gauge
B - 0-200 psig (0-14 bar)
C - 0-60 psig (0-4 bar)
D - No Gauge with Panel
Mount Nut
E - 0-200 psig (0-14 bar)
Gauge with Panel Mount Nut
F - 0-60 psig (0-4 bar)
Gauge with Panel Mount Nut
COLOR
G - Gray
Y - Yellow
R - Red
B - Blue
2 - Gold (standard)
PIPE SIZE
3 - 3/8 NPTF
4 - 1/2 NPTF
5 - 3/4 NPTF
C - 3/8 BSPP
D - 1/2 BSPP
E - 3/4 BSPP
F - 3/4-16 SAE
G - 7/8-14 SAE
MD4 52K B S B 5 2 B
DIMENSIONS inches (mm) Weight †
A B* C** Depth † lb (kg)
3.5 (87) 5.6 (142) 1.6 (40) 2.9 (73) 2.56 (1.16)
* Dome removal clearance: add 0.625 (16).
** Cap removal clearance: add 0.50 (13).
† 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