Manual

BT-481 REV. B
8
PIPING CIRCUITS
The following paragraphs describe the operation of the piping circuits of the system. The descriptions refer to the main
components of each circuit and are grouped by function. Reference the piping schematic below and in the general
arrangement drawing for the component designations. These component and circuit descriptions should be understood
before attempting operation.
Legend
CN-1 Connection, Pump / Top Fill V-10 Valve, Liquid Phase Isolation
CN-2 Connection, Full Trycock & Vent V-11 Valve, Gas Use
CN-3 Connection, Liquid Fill / Withdrawal CV-1 Check Valve, Pump / Top Fill
CN-4 Connection, Vaporizer Inlet (External) LI-1 Liquid Level Gauge
CN-5 Instrument Connection, Liquid Phase PI-1 Pressure Gauge
CN-6 Instrument Connection, Vapor Phase PBC-1 Pressure Building Coil
CN-7 Connection, Vaporizer Outlet (Internal) PCV-1 Pressure Building Regulator
V-1 Valve, Pump / Top Fill PCV-2 Economizer Regulator
V-2 Valve, Full Trycock / Vent SV-1** Safety Valve
V-3 Valve, Liquid Fill / Withdrawal SV-2 Relief Valve
V-4 Valve, Vaporizer Inlet SV-3 Relief Valve
V-5 Valve, Economizer Isolation SV-4 Relief Valve
V-6 Valve, Pressure Building Outlet R-1** Inner Container Safety Disc
V-7 Valve, Pressure Building Inlet R-2 Outer Casing Safety Disc
V-8 Valve, Vapor Phase Isolation FSV-1* Fill Stop Valve
V-9 Valve, Equalization
* Functions with delivery vehicle equipped with automatic filling system, i.e. Taylor-Wharton Express Cryogenic Delivery System.
** Option for Dual Safeties/Rupture Disc with Diverter Valve.
Figure 1: System Piping Schematic
CN-2
CN-3
CN-4
CN-1
PCV-1
SV-1
R
-
1
LI-1
V
-
1
V-2
V-3
V
-
4
CV-1
FSV-1*
PCV-2
SV-4
V
-
5
PI-1
V-8 V-10
V-6
V-9
V-7
SV-3
SV-2
CN-6
CN-5
R-2
PBC-1
V
-
11
CN
-
7