Data Sheet

ManualsBrandsDanfoss ManualsHeating SuppliesThermostatic Rad Valve w/ Vac Breaker (1 Pipe Steam)

Table Of Contents

Dial / Operator / Sensor + Valve

FREE STANDING RADIATORS

The free-standing one-pipe low-pressure steam radiator is positioned where air

continually passes freely over the operator

FREE STANDING RADIATORS

The free-standing one-pipe low-pressure steam radiator is accessible, but air cannot

continually pass freely over the operator

CONVECTORS

The one-pipe low-pressure steam convector is inaccessible; room air cannot continually

pass freely over the valve

ENCLOSED RADIATORS

The cabinet enclosed radiator configuration requires that the dial and sensor be

mounted separately, away from the valve

Typical

Installation

Use air vent

PLUS

1/8” one-pipe

steam valve

Use air vent

PLUS

1/8” one-pipe

steam valve

Use dial / operator with remote

sensor. The sensor and capillary

tube may be extended up to 6’

and can be easily wall mounted.

Use operator with combined remote

dial / sensor. The dial/sensor and

capillary tube may be extended up

to 6’ and are wall mounted.

Use operator with separate remote

dial and remote sensor. Place the

remote sensor beneath the element

or on a draft-free wall. The remote

dial mounts on the enclosure or wall.

Use air vent

PLUS

Two 45 elbows

PLUS

1/8” one-pipe

steam valve

Data sheet

RA 2000 1PS

Thermostatic Radiator Valve

For Use on One-Pipe Low-Pressure

Steam Systems

Data sheet

Use standard or tamper

resistant model with combined

dial/operator/

sensor. Always install the

operator horizontally

Use air vent

PLUS

1/8” one-pipe

steam valve

Summary of content (4 pages)

PAGE 1
Data sheet Data sheet RA 2000 1PS Thermostatic Radiator Valve For Use on One-Pipe Low-Pressure Steam Systems Typical Installation Dial / Operator / Sensor + Valve FREE STANDING RADIATORS The free-standing one-pipe low-pressure steam radiator is positioned where air continually passes freely over the operator Use standard or tamper resistant model with combined dial/operator/ sensor.
PAGE 2
Data sheet RA 2000 1PS Thermostatic Radiator Valve For Use on One-Pipe Low-Pressure Steam Systems Design & Function Part 16 12 13 14 15 18 17 Ÿ Ÿ Ÿ Ÿ Ÿ Ÿ 1. Valve 2. Valve Disc 3. Spindle guide 4. Spring 5. Back seat washer 6. Valve spindle 7. Pressure pin 8. Clamping band 9. Allenscrew 10. Socket 11. Bellows 12. Handle 13. Adjustment spring 14. Safety spring 15. Pressure spindle 16. Air vent 17. Retainer 18.
PAGE 3
Data sheet RA 2000 1PS Thermostatic Radiator Valve For Use on One-Pipe Low-Pressure Steam Systems Technical Data Maximum Temperature 250°F Type RA 2000 1PS RA 2000 Operators Symbol Temp. Range: 45 F-86 F Code No.
PAGE 4
Data sheet RA 2000 1PS Thermostatic Radiator Valve For Use on One-Pipe Low-Pressure Steam Systems How To Avoid Problems The operator with valve-mounted dial and sensor must be mounted horizontally. IMPORTANT In one-pipe steam systems sufficient pitch is required to permit condensate return. Condensate should not be trapped in the valve or vent. The vent (when not supplied) should be checked to assure it is properly working. Boiler/steam supply must not run at constant pressure.