Norgren 16-004 Installation Instructions
TECHNICAL DATA
Fluid: Compressed air and water
Maximum pressure: 300 psig (20 bar)
Operating temperature*: -30° to +200°F (-34° to +93°C)
* Air supply must be dry enough to avoid ice formation at temperatures below
+35°F (+2°C).
Repeatability: ± 20% of relief pressure setting
Materials:
Body, cap, springrest: Brass
Valve: Brass and nitrile
Regulating spring: Stainless steel
REPLACEMENT ITEMS
The 16-004 tank relief valve is not repairable and should be replaced if it
malfunctions.
INSTALLATION
1.Shut off pressure to tank and reduce pressure in tank to zero.
2.Install relief valve in tank using pipe thread sealant on male threads only. Do not
allow sealant to enter interior of tank or relief valve.
WARNING
These products are intended for use in industrial compressed air and water
systems only. Do not use these products where pressures and temperatures can
exceed those listed under Technical Data.
To provide overpressure protection for pneumatic equipment, the flow capacity
of the relief valve selected for a specific application must be greater than the
maximum possible flow rate of the system connected to the inlet of the relief
valve.
The accuracy of the indication of pressure gauges can change, both during
shipment (despite care in packaging) and during the service life. If a pressure
gauge is to be used with these products and if inaccurate indications may be
hazardous to personnel or property, the gauge should be calibrated before initial
installation and at regular intervals during use.
Before using these products with fluids other than air, for non industrial
applications, or for life-support systems consult Norgren.
HOW TO SELECT A RELIEF VALVE
The function of the 16-004 relief valve is to retard excess pressure buildup in a
low volume air tank. Typically, a pressure regulator reduces supply pressure from
the air compressor to a suitable working pressure. Compressed air, reduced to
the working pressure, is stored in the low volume air tank. The 16-004 relief valve
is installed in the tank to vent air from the tank should pressure become
excessive. Flow capacity of the relief valve selected must equal or exceed the
flow and pressure rating of the air compressor supplying the air tank.
IM-468.520
(4/01)
Replaces NIP-703
© Norgren 2001
16-004
Installation & Maintenance
Instructions
TANK RELIEF VALVE MODEL NUMBERS
Model Numbers - Relief Pressure Adjustment Ranges *
25 to 50 psig 25 to 75 psig 70 to 150 psig 125 to 300 psig
Port Size (1,7 to 3,5 bar) (1,7 to 5,2 bar) (4,8 to 10,4 bar) (8,6 to 20,7 bar)
1/8 PTF 16-004-001 16-004-002 16-004-003 16-004-004
1/4 PTF 16-004-009 16-004-010 16-004-011 16-004-012
ALTERNATIVE MODELS
Factory Set Relief Pressure Setting Add **
Insert desired relief pressure setting 025 through
in psig 300
00
-
★
★ ★★ ★
4
- -
61
★ ★
Factory set, non adjustable pressure Add **
Locktite adjusting cap Z
* Relief valves can be adjusted to pressures in excess of, and less than, those
specified. Do not use these units to control pressures outside of the specified
ranges.
** Example: 16-004-001-Z025
Locking method: Locktite cap
Relief pressure setting: 25 psig
RELIEF FLOW CHARACTERISTICS - AIR
0 0,5 1 1,5 2 2,5 dm3/s
AIR FLOW
0 1 2 3 4 5 6 scfm
8
6
4
2
0
INLET PRESSURE
bar
100
80
60
40
20
0
psig
50 (3,5)
25 (1,7)
SET RELIEF
PRESSURE:
psig (bar)
PORT SIZE: 1/8", 1/4"
SPRING RANGE:
25 to 50 psig (1,7 to 3,5 bar)
TYPICAL PERFORMANCE CHARACTERISTICS
RELIEF FLOW CHARACTERISTICS - AIR
0 0,5 1 1,5 2 2,5 dm3/s
AIR FLOW
0 1 2 3 4 5 6 scfm
8
6
4
2
0
INLET PRESSURE
bar
100
80
60
40
20
0
psig
75 (5,2)
50 (3,5)
25 (1,7)
SET RELIEF
PRESSURE:
psig (bar)
PORT SIZE: 1/8", 1/4"
SPRING RANGE:
25 to 75 psig (1,7 to 5,2 bar)
RELIEF FLOW CHARACTERISTICS - AIR
0 0,5 1 1,5 2 2,5 dm3/s
AIR FLOW
0 1 2 3 4 5 6 scfm
8
6
4
2
0
INLET PRESSURE
bar
100
80
60
40
20
0
psig
180
160
140
120
12
10
PORT SIZE: 1/8", 1/4"
SPRING RANGE:
70 to 150 psig (4,8 to 10,4 bar)
SET RELIEF
PRESSURE:
psig (bar)
150 (10,3)
100 (6,9)
See Example
EXAMPLE: If your compressor delivers 5 scfm at 120 psig and your tank
requires a working pressure of 90 psig, the relief valve must have a set
pressure slightly higher than the 90 psig working pressure and be
capable of flowing 5 scfm at 120 psig (or pressures less than 120 psig).
a subsidiary of IMI plc
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