5.3103.8 Isolation Valve Installation

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Piping (Distribution Installation)
Desired Outcome: 
Facilitation of service or replacement of equipment
For supporting material, see Referenced Standards.
TitleSpecification(s)Objective(s)
5.3103.8a
Check for presence of asbestos-containing materials (ACMs)

Potential ACMs will be handled in accordance with SWS 2.0110.2 Potential Asbestos-Containing Materials

Ensure a safe work environment
5.3103.8b
Work site preparation

Nearest valves on either side of new valve location will be closed

Fluid in the system will be drained to safe and appropriate location

Eliminate fluid supply to valve location
5.3103.8c
Install isolation valve

Isolation valves will be installed on risers and distribution loops to permit maintenance or replacement of equipment, such as pumps, boilers, control valves, strainers, etc.

Provide means of servicing system and equipment
5.3103.8d
Testing and verification

System will be checked for leakage

System will be refilled and air will be eliminated

Ensure there are no leaks in the system and that the valve is operating
5.3103.8e
Reinsulate area

Where insulation was removed, valve will be reinsulated with new insulation to IECC IECC International Energy Conservation Code and ASHRAE ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org 90.1, at a minimum

Reduce energy loss

Maintain safe surface temperature
5.3103.8f
Education

Completed work will be reviewed with the building/property management team and operations staff

Building/property management team and operations staff will be educated on the safe and efficient operation and maintenance requirements of the installed item

Ensure building/property management team and operations staff is informed of the safe, efficient operation and maintenance requirements of the installed item