Installation
Deltatop DP71B, DP72B, DP73B
24
Hauser
10. With the follower and packing rings already in place, insert the sensor into the spring lock body.
!
Note!
The three studs must pass through the indicator ring and the load plate.
11. Bolt the sensor flange to the mounting flange with the gasket between the flanges. The nuts
should be tightened until the gasket is completely compressed.
12. Insert the assembly until the tip of the sensor hits the opposite side of the pipe wall or the end
support. Align the head of the sensor so that the arrow labeled "flow" on the head is in the
direction of the flow in the pipe to within 3°.
13. Maintain the head in this position for the remainder of the installation procedure.
14. Place the three lock washers and the three load nuts on the studs and tighten.
!
Note!
For the DP71B and DP72B sensors, tighten the load nuts until the load plate is 0.050"
(1.3 mm) from the indicator ring.
For the DP73B sensors, the load plate should be 0.063" (1.6 mm) from the indicator ring.
15. Thread on the three jam nuts and tighten until they are resting hand-tight against the lock nuts.
16. Place a backup wrench on the load nuts to prevent them from rotating. While not allowing the
load nuts to rotate.
17. Tighten the jam nuts 1/8 turn beyond hand-tight.
18. Using a torque wrench, tighten the three packing bolts to the appropriate torque value listed
in the table below:
!
Note!
The weld on the weld ring should not contact the top surface of the follower. If the weld on the
weld ring comes into contact with the follower, the sensor will not be properly bottomed in the pipe.
If this occurs, consult the factory before proceeding.
3.10.1
Installation of the shut-off valves (for the remote version):
The shut-off valves have to be mounted to the nozzles of the primary element before mounting the
sensor into the pipe.
3.10.2
Installation of the manifold and the transmitter (for the remote version):
The impulse pipes have to be installed with the required slope
(for liquids or steam:
10, for gases:
• For steam and liquids, a venting possibility has to be provided at the highest point.
• For gases, a drainage has to be mounted at the lowest point. The impulse lines (+) and (-) have to
be mounted to the respective inlets (process connections) of the manifold.
The transmitter is directly screwed to the manifold with the supplied screws and gaskets.
Sensor size
Packing bolt
Torque (in-lbs)
Packing bolt
Torque (ft-lbs)
DP71B
50
4.2
DP72B
100
8.3
DP73B
170
14.1
