Concoa 830-9412, Инструкция по установке и эксплуатации, Страница: 3 / 8

a
b
c d
9400
Series
Relief
Valve
Table 1
Part
Number
Material Seat Pressure
Range
Flow at 10% Pressure
Differential
830-9414 Brass Neoprene 80-120 PSIG 1,263 SCFH (N2 100 PSIG)
830-9413 Brass Viton 270-600 PSIG 12,864 SCFH (N2 420 PSIG)
830-9412 Brass Viton 130-310 PSIG 6,960 SCFH (N2 220 PSIG)
FIELD ADJUSTMENT
Note: The safety relief device should not be used as a control valve to regulate
the system operating pressure. Frequent activation will cause seat leak and
require excessive maintenance.
DO NOT ADJUST WHILE UNDER PRESSURE.
1. Maintain system-operating pressure at least 5-10% below the set pressure
of the relief valve. Operating too close to the valve set pressure will cause
seat leak and will shorten the time between valve maintenance.
2. To adjust the cracking pressure, a field test bench maybe constructed
using the following parts as shown in Figure 2 below:
a. 492-1312-01-580 0-750 PSIG regulator
601-3312-01-580 0-150 PSIG regulator
b. 529-0022-01-001 Reducing adapter
c. 533-9002
Needle valve
d. 830-5385 Brass ¼” tee
Figure 2
Figure 1