Data Sheet
RAE 2000 Thermostatic Operator
Application:
RAE 8254 |
RAE 8256 |
Technical
Specifications:
The RAE 2000 series of thermostatic operators are designed for use in residential hot water and low pressure steam heating systems. This nonelectric self-actuating proportional controller provides effective regulation of temperature within the space.
RAE 2000 operators are equipped with a tool free snap on lock mechanism that allows mounting of the operator to the RA2000 series of valve bodies.
Incorporated into the RAE operator are features that include a ‘Freeze Protection Setting’. For the RAE 8256 which utilizes a remote sensor, a 6ft (2m) ultra-thin capillary tube is coiled within the remote sensor housing. After the operator has been mounted the capillary tube is pulled out to the required length.
Thermostatic operator charge |
Liquid |
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Max. differential pressure, close off |
15 psi (1 bar), across valve body |
Suitable valve mounting |
RA2000, RA-C, RA 15/6 |
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Max. sensor temperature |
140°F (60°C) |
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Adjustable temp. range |
46° to 82°F (8° to 28°C) |
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Data and Ordering: |
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Type |
Version |
Setting Range |
Code no. |
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RAE 8254 |
Built-in sensor |
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013G8254 |
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46˚ to 82˚ F |
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Remote sensor |
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RAE 8256 |
capillary length 6 ft |
(8˚ to 28˚ C) |
013G8256 |
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(2 m) |
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VDLTG122 © Danfoss 07/17 |
1 |
Data Sheet |
RAE Thermostatic Operator |
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Data and Ordering |
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Cont.: |
RA2000 Valves |
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Valve |
Pipe Size |
Valve Type |
Connection |
Code No. |
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½” |
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013G8015 |
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¾” |
Straight |
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013G8020 |
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1” |
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013G8025 |
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1-¼” |
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013G8032 |
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½” |
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013G8014 |
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¾” |
Angle |
FNPT x MNPT |
013G8019 |
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1” |
Union Tailpiece |
013G8024 |
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1-¼” |
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013G8031 |
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½” |
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013G8013 |
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¾” |
Side Mount |
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013G8018 |
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1” |
Angle |
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013G8023 |
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1-¼” |
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013G8030 |
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½” |
Straight |
Double Female |
013G8042 |
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Solder Unions |
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¾” |
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013G8044 |
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Design: |
The RAE thermostatic operator operates with a |
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liquid filled bellows system, which is actuated by |
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ambient temperature changes. |
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The calibrated pressure in the bellows corresponds |
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to the temperature. This pressure is balanced by |
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the force of a regulating spring. |
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On a rise in ambient temperature, the pressure |
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increases in the bellows, moving the valve cone |
towards the ‘closed’ position, until equilibrium exists between the bellows and spring.
On a drop in ambient temperature, the pressure falls, allowing the bellows to contract and the valve cone to move towards the ‘open’ position until a state of equilibrium is re-established.
1.Socket
2.Bellows
3.Setting handle
4.Setting mark
5.Limiter tab
6.Reset spring
7.Sensor medium
8.Spindle
9.Spring
10.Capillar tube
11.Console
12.Cover
2 |
VDLTG122 © Danfoss 07/17 |
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