Technical Specifications

39003 Series High Performance Butterfly Valves (HPBV) | 5
Numbering System
—
1st 2nd 1st 2nd 3rd 4th 5th
3 3 3 9 3
Actuator Type
33 Spring Diaphragm
(Air to extend action
only with or without
auxilliary handwheel)
Body
Series
39
Actuator Mounting
(Type 25 Only)
0. Undefined
1. Horizontal above center. Valve
opens on stem extension (air-
to-open action)
2. Horizontal above center. Valve
closes on stem extension (air-
to-close action)
*3. Vertical above center. Valve
opens on stem extension (air-
to-open action)
*4. Vertical above center. Valve
closes on stem extension (air-
to-close action)
5. Horizontal below center. Valve
opens on stem extension (air-
to-open action)
6. Horizontal below center. Valve
closes on stem extension (air-
to-close action)
7. Vertical above center. Valve
opens on stem extension (air-
to-open action)
8. Vertical above center. Valve
closes on stem extension (air-
to-close action)
Seat
Material
1. PTFE or
RTFE Seal
Ring
2. Inconel
Seal Ring
3. Fire-Safe
Seal Ring
Not Assigned
3
—
*Standard Actuator Mounting Arrangement
Note 1: Looking at valve from actuator and
bracket end, valve would not be visible.
Note 2: Positions 1, 2, 5 and 6 shown dotted
and obtained by rotating the valve 180° about
its shaft axis.
Caution: The valve must not be installed
with the actuator mounted vertically below
center.
Figure 2