Laminar Flow and Containment Equipment

Split Butterfly Valve

A two-part containment valve whose active and passive halves seal separate vessels, then dock and open as one butterfly disc for powder transfer.

Active and Passive Half Valves
Closed Docking Sequence
Contained Powder Discharge
Manual or Automated Actuation

Request a Quote Browse Products

Product Introduction

The split butterfly valve connects a source container to a receiving vessel without leaving one open valve face exposed. Each half closes its own container. After docking, the two disc halves lock together and act as one butterfly valve; powder transfers through the combined bore, then the valve closes before undocking. The active half contains the drive mechanism, while passive halves can remain on multiple bins or bags. Valve diameter, seals and cleaning method are selected for the powder and process.

Key Features

Independent half valves keep source and receiver closed before docking.

Docking joins the two exposed disc faces before the transfer bore opens.

One active actuator can operate compatible passive units on multiple containers.

Free-orientation or guided docking options accommodate container alignment.

Removable product-contact parts support inspection and cleaning.

Customer Product Concerns

Contained powder transfer depends on the two valve halves aligning, sealing and completing the correct close-before-undock sequence.

Opening a conventional valve exposes the mating face to powder.The split discs join their exposed faces before the combined bore opens.

A suspended IBC is difficult to align precisely.Guided or free-orientation docking tolerates normal positioning variation.

Operators disconnect while the disc remains open.Mechanical interlocks block separation until the combined valve is closed.

Product residue remains on complex valve parts.Quick-release product-contact components allow planned cleaning or changeover.

Typical Applications

IBC dischargeVessel chargingPotent powder transferContained blending and compression feed

Technical Parameters

Typical configurable construction ranges for a pharmaceutical split butterfly valve are listed below.

Core Material	SUS316L active and passive valve bodies with engineering-polymer actuator components and silicone or EPDM seals
Panel Thickness	20-45 mm valve-body wall and docking-ring sections
Effective Width	100-250 mm nominal transfer bore
Maximum Length	Up to 450 mm overall docked valve height
Steel Facing Thickness	3.0-8.0 mm SUS316L product-contact body sections
Core Density	Approximately 8000 kg/m³ for SUS316L product-contact components
Thermal Conductivity	14-16 W/(m·K) for austenitic stainless steel
Surface Finish	Electropolished or mechanically polished SUS316L product-contact surfaces
Joint Type	Interlocked active-passive docking ring with split disc, circumferential seals and manual or pneumatic actuator
Customization	Available based on the intended application and operating environment.

Available Options

100-250 mm nominal sizesManual or pneumatic actuationContainer-lift and docking aidWash-in-place or removable core

Planning a Split Butterfly Valve specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

Talk to Our Team