Acuflow brings Carten Controls’ high-performance valves and flow solutions to pharmaceutical, biopharma and other critical-process environments. Carten designs and manufactures solutions for ultra-high-purity systems where cleanliness, containment, delivery, process efficiency and reliability are critical — from individual valves through to integrated flow solutions.
Sanitary diaphragm valves for multi-use bioprocessing.
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BNW Block Series
Custom block valves with minimum hold-up volume.
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Tandem / Custom Valve Solutions
Application-specific welded and multiport configurations.
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BNW Diaphragm Valve SeriesSanitary diaphragm valves for multi-use bioprocessing.
Carten’s BNW series uses a unique diaphragm design intended to eliminate constant diaphragm re-tightening after SIP and to enable rapid changeout at each batch change.
Features
Available in line sizes up to 4 in
Single-polymer bonnet external seal
Pneumatic or manual interchangeability
Standard and bespoke multiport / block options
Shut-off, control and back-pressure functionality
Automation and switching / signalling options
Suitable across upstream and downstream bioprocess operations
Technical Specifications
ParameterVerified Technical Data
Body316L forged stainless steel body
DiaphragmPTFE / EPDM; high-temperature capability up to 150°C
BNW Block SeriesCustom block valves with minimum hold-up volume.
The BNW Block Series carries the advantages of the standard BNW platform into bespoke block designs developed to minimize hold-up volume and compact multiple valve functions.
Tandem / Custom Valve SolutionsApplication-specific welded and multiport configurations.
The Acuflow capabilities brochure describes Carten tandem valves as customized solutions in which an access valve is typically welded to a main valve to create GMP or SAP configurations. These are engineered to improve drainability and minimize dead legs. Carten’s current website supports a broader engineer-to-order approach but does not provide a dedicated public Tandem Valve product page.
Features
Application-specific configuration
Designed to improve drainability
Designed to minimize dead legs
Welded access-valve / main-valve configurations
GMP or SAP configurations
Full material certification
Can be developed within Carten’s broader custom block / multiport engineering approach
Carten states that it supplies individual valves through to full integrated solutions and partners with customers from enquiry through design, manufacture, supply and after-sales service. The Acuflow brochure additionally highlights custom valve development using 3D modeling and CFD analysis to optimize flow paths, minimize dead space and improve CIP / SIP efficiency.
Capabilities
Custom multiport valves
Block valve configurations
Tandem / access-valve configurations
Flow-path optimization
Dead-leg reduction
SolidWorks 3D drawing packages
Computational fluid dynamics
Finite element analysis
OEM collaboration
Custom integrated fluid-transfer systems
Quality & Compliance
Engineered for Critical Process Environments
USP Class VI <87> / <88> for relevant BNW valve components
ASME BPE referenced across leak testing, electropolishing and passivation practices
ANSI FCI 70/2 Class VI leak-testing requirements on relevant bioprocess valve ranges
Clean White Room manufacturing for Carten’s bioprocess products
PED / material certification and additional validation capabilities described in the Acuflow capabilities brochure
Flow, pressure, durability, SIP thermal-cycle and drainability testing capabilities referenced in the Acuflow brochure
Carten In-House Engineering
SolidWorks 3D design
Computational fluid dynamics
Finite element analysis
Surface profilometry
Borescope analysis
Flow and pressure testing
Durability testing
SIP thermal-cycle testing
Drainability analysis
New-product validation
Choose Your Flow-Control Approach
RequirementSuggested Carten Solution
Sanitary multi-use process valveBNW Diaphragm Valve Series
Compact multi-valve / low hold-up configurationBNW Block Series
