Rotary Disk Isolation Valve
The Hull Rotary Disk valve is available as a drop-in replacement for all standard butterfly valves in 20-inch, 24-inch, 30-inch, and 36-inch sizes.
The Hull Rotary Disk valve is available as a drop-in replacement for all standard butterfly valves in 20-inch, 24-inch, 30-inch, and 36-inch sizes.
The Hull Rotary Disk valve design minimizes the generation of particulate inside the lyophilization vessel. The Hull Rotary Disk valve does not abrade the seal- the seal is in simple compression. Butterfly valves work with a scrubbing action as the disk closes across the valve liner. The scrubbing action of a butterfly valve generates particulate and accelerates seal wear.
The Hull Rotary Disk valve design provides a wide open vapor flow path, similar to that of a butterfly valve's but without the validation and maintenance concerns. The Hull Rotary Disk valve eliminates the obstruction to smooth vapor flow which is inherent in poppet-style valves. Also, a poppet valve requires its operating mechanism to pass through the condenser interior which can present cleaning issues.
- Minimizes particulate inside the lyophilizer.
- Requires much less maintenance time for seal replacement.
- Does not obstruct the vapor path.
- Is more compact; the actuator does not intrude into either lyophilizer vessel.
- 100% Type 316L stainless steel and Polyetheretherketone polymer construction. Body and Disk O-ring seals are silicon. Shaft seals are Teflon.