Bray Series 70 User Manual

6
Series 70 Electric Actuator
Installation, Operation and Maintenance Manual
Storage
Actuators are not weatherproof unless they are
properly installed on the valve or prepared for storage.
Bray cannot accept responsibility for deterioration
caused on-site.
• Store units on a shelf or wooden pallet in order to
protect against floor dampness.
• Cover the units to protect against dust and dirt.
• To prevent condensation from forming inside these
units, maintain a near constant external temperature
and store in a well-ventilated, clean, dry room away
from vibration.
• For units with an internal heater, power should be
supplied to the heater via conduit entry with an
appropriate sealing gland.
Commissioning
Mounting the Actuator
All Bray Series 70 electric actuators are suitable for
direct mounting on Bray butterfly valves. With proper
mounting hardware, the S70 actuator can be installed
onto other quarter-turn valves or devices.
NOTICE
The standard mounting position for the actuator
orients the unit with its handwheel in a vertical plane
and parallel to the pipeline.
If the actuator is mounted on a vertical pipe, it is
recommended that the unit be positioned with
the conduit entries on the bottom to prevent
condensation from entering the actuator through its
conduits.
In all cases, the conduit should be positioned
to prevent drainage into the actuator and the
handwheel should not be facing down.
Follow the steps below to mount the actuator onto
the valve.
1. Manually operate the actuator until the output shaft
of the actuator is in line with the valve stem. If
possible, select an intermediate position for both
the valve and actuator.
2. If required, place the proper adapter onto the valve
stem. It is recommended that a small amount of
‘anti-seize’ lubricant be applied to the adapter to
ease assembly.
3. Mount the actuator onto the valve stem.
4. Install the furnished mounting studs by threading
studs all the way into the actuator base. It may be
necessary to manually operate the actuator to align
the valve and actuator bolt patterns.
5. Fasten the mounting studs in place with furnished
hex nuts and lock washers

Bray Series 70 Specifications

General

Series	70
Accuracy	±1% of span
Repeatability	±0.5% of span
Housing Material	Aluminum
Input Signal	3-15 psi
Power Supply	N/A (Pneumatic)