Manual 26815 QuickTrip Electro-Hydraulic Trip Block Assembly
Woodward 15
Proof Pressure:
51.7 bar (750 psig)
Burst Pressure:
86.2 bar (1250 psig)
Fluid Temperature:
15 to 70 °C / 59 to 158 °F continuous
Fluid Cleanliness Level:
ISO 4406 code 20/18/16 or cleaner
Fluid Filtration Level:
20 micron filter is recommended with a beta ratio of at least 200
(99.5% efficiency)
Hydraulic Connections:
Hydraulic Supply Port: 1.250 SAE Code 61 Flange
Hydraulic Drain Port: 1.250 SAE Code 61 Flange
Oil Flow / Cv Rating:
Refer to following figures for Cv and Leakage Rates of the Valves
Figure 2-1. QuickTrip Cv vs Time Curve
The figure above shows the estimated, worse case Cv of the
QuickTrip assembly with only 2 of the 3 three valves tripped.
The table below shows the QuickTrip’s Cv in the various tripped conditions.
Note: the actual Cv values may deviate by as much as ± 12% from the values shown.
Table 2-1. QuickTrip Cv in Trip Condition
Trip Condition Cv
Trip A & B 10.3
Trip B & C 11.4
Trip A & C 11.9
Trip A, B & C 13.4
The figure above shows the typical Cv values for the QuickTrip
assembly. Actual values may vary by as much as ± 12% from the
values shown.
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