Honeywell SV2 Series User Manual page 32

SV2 Series Safety Shut-off Valves
2. MOUNTING OVERVIEW
A. Introduction and Orientation Planning
The gas valve can be mounted plus or minus 90 degrees from the vertical. Refer to
arrows on the valve body when planning the mounting orientation (refer to
be accessible when the valve is installed in the valve train for programming purposes and visual indication purposes.
NOTE: If the valve electronics needs to be moved to the opposite side of the valve for better access, refer to the CHANGING
VALVE / ELECTRONICS ORIENTATION procedure in this manual.
Fig. 19: Valve mounting position.
NOTICE
Do not attempt to change valve electronics orientation without consulting the CHANGING VALVE / ELECTRONICS
ORIENTATION section of this manual.
B. - D. Flanges, Valve and NOVV Mounting
After planning for the valve orientation, the flanges should be mounted to the gas connection, following the pipe preparation
guidelines set forth in the SV2 Series Valves Installation Instructions (document 32-00018).
NOTE: Ensure the gap left between the flanges when installed on the pipes does not exceed the valve body width otherwise
the valve piping may be over stressed.
Next the valve is mounted to the flange(s) and piping. Depending on the valve size, there are different mounting techniques.
Refer to the SV2 Series Valves Installation Instructions, the installation instructions packed with each flange and/or
section of this document. If a NOVV (normally open vent valve) is required, it should be mounted next.
M28663A
Fig. 19. Pay attention to the gas flow direction
Fig. 15 and Fig.
NOTE: The 1in/DN25 valve flange pressure port
must be installed facing sideways (refer
to Figs 2-3) due to the mounting hole
orientations.
NOTE: The 1.5-2.0 inch/DN40-50 valve flange
pressure port must be installed either
facing up or down (refer to Figs 4-6) due to
the mounting hole orientations.
32
16). The electronics and LEDs should
Flanges
32-00029—02