ITT Pure-Flo 963 manual bonnet.
The 963 is Pure-Flo's compact manual bonnet with a glass-reinforced PES housing and handwheel. It provides top-entry inline maintenance, an adjustable travel stop, visual position indication, protected internal fasteners, a weep hole, and optional sealed 963S construction.
What ITT Pure-Flo 963 manual bonnet is—and where it fits.
The 963 is Pure-Flo's compact manual bonnet with a glass-reinforced PES housing and handwheel. It provides top-entry inline maintenance, an adjustable travel stop, visual position indication, protected internal fasteners, a weep hole, and optional sealed 963S construction.
Where it fits
Use it as the general-purpose manual topworks across a broad range of Pure-Flo valve sizes. Confirm size, diaphragm type, pressure and temperature, washdown chemistry, 963 versus 963S, lockability, autoclave requirement, and handwheel clearance.
What to confirm
Confirm the compatible valve body and size, diaphragm and compressor connection, pressure and temperature, washdown or autoclave conditions, sealed-bonnet or travel-stop options, and operator access.
How Triplex helps
Triplex helps keep the actuator conversation tied to the complete valve package so the hardware works in the plant, not just on a datasheet.
What Triplex will want to know.
Good valve recommendations come from process context. A few details up front prevent a lot of expensive back-and-forth later.
| Selection point | Why it matters | Triplex note |
|---|---|---|
| Manual or automated operation | Manual bonnets, pneumatic actuators, and stainless actuator options solve different plant realities. | Confirm who operates the valve and how often it cycles. |
| Fail position and force | Actuator sizing depends on valve size, diaphragm, process pressure, and fail-open/fail-closed expectations. | Do not size the actuator from the actuator name alone. |
| Controls and environment | Feedback, solenoids, washdown exposure, and service access can determine the best topworks package. | Triplex can help coordinate actuator, switch package, and documentation needs. |
Manufacturer literature and related Triplex resources.
Use these documents as a starting point, then confirm final selection against the actual process conditions.
Keep the selection connected to the full ITT valve platform.
Actuation overview
Compare this item against related ITT options before narrowing the valve package.
PlatformPure-Flo diaphragm valves
Review the full Pure-Flo platform around body, diaphragm, bonnet, actuator, and controls decisions.
PlatformEnviZion platform
Use the EnviZion family page when the valve package belongs in that platform conversation.
Need help applying 963 Manual?
Send the valve size, connection style, product, process conditions, cleaning/sterilization method, actuation preference, controls needs, and any documentation requirements.
Talk to Triplex
