Gardner Denver EMCO WHEATON E2110 - 3 Loading Arm Description; Loading Arm; Main Components - Top Loading

Instruction Manual
Top & Bottom Loading Arms
E2110, E2112, E2022, E2025
E2033, E2304, E2573, E2123,
E2313, E2121
- 3 -
3 Loading Arm Description
3.1 Loading Arm
The EMCO WHEATON Loading Arms are a movable pipe system for loading or
unloading railroad cars, tank trucks and other vessels. The transfer of fluid is
achieved by either introducing the loading arm into the manhole or making a
connection to the flange of the vessel. Please refer to the general arrangement
drawing for connection details.
EMCO WHEATON Swivel Joints and counterbalance mechanisms provide
smooth and balanced movement of the loading arm in all directions. EMCO
WHEATON loading arms are also designed to be self-supporting.
3.2 Main Components - Top Loading
Refer to Figure 1 and 2 in Section 3.3
1.
The F-Length provides reach in the horizontal plane. (boom style arms
only)
2. The A-Length provides reach in the horizontal and vertical planes.
3. The B-Length is introduced into or connected to the tank or vessel.
4.
Swivel joints connect piping and elbows allowing the loading arm to
articulate while maintaining a pressure tight seal.
5.
The spring cylinder balances the A-length and provides assisted
movement of the loading arm.
6.
The vacuum breaker introduces air into the arm and facilitates draining
of the loading arm.
7. Handles are supplied to aid in manipulation of the loading arm.
8.
The loading valve is used to start and stop the product flow. EMCO
WHEATON loading valves feature an adjustable slow closing mechanism
to control the rate of closure to prevent line shock.
9.
Other valve types are used to start and stop the product flow of loading
arms for chemical, hot & food products.
10.
A remote control is used to assist in operating the loading valve while
the operator is visually monitoring the fluid level.
11.
The flange or coupler is used to connect the loading arm to the
corresponding connector on the vessel.
12.
A proximity switch (limit switch) can be installed to monitor the position
of the loading arm or the state of the product valve (open/closed).