What does Aquasyn manufacture?

Aquasyn manufactures precision stainless steel diaphragm valves, sampling and bleed valves, tank bottom valves, zero static tee valves, point-of-use valves, and custom-fabricated flow hardware for pharmaceutical and bioprocessing applications.

What makes Aquasyn different from other valve manufacturers?

Aquasyn designs products conceived specifically for the bio-pharmaceutical sector rather than adapting industrial valves. Proprietary innovations include Ultraz® high-performance diaphragm technology, Valbow® valve systems, and Tork-Tite® patented bonnet design. All products are manufactured in the United States.

Can Aquasyn produce custom configurations?

Yes. Aquasyn offers full custom fabrication including hybrid manifolds, dip tubes, spargers, filter housings, hose racks, and custom valve configurations. Their engineering team uses SolidWorks, AutoCAD, and NX-Ideas to take client concepts from drawing to production.

What materials does Aquasyn work with?

Standard material is 316L stainless steel. Aquasyn also works with Hastelloy, Titanium, and other exotic materials for demanding chemical and high-purity applications.

What quality standards does Aquasyn meet?

Aquasyn is affiliated with ASME BioProcessing Equipment (ASME BPE), FDA cGMP, and 3-A Sanitary Standards. All diaphragms meet USP Class VI. Material Test Reports and certificates of conformance are provided as standard.

Where is Aquasyn manufactured?

Aquasyn is manufactured in the United States. Corporate offices are located in Carson City, Nevada.

An Alphinity Company

Precision Stainless Steel
Flow Hardware

— Better by Design

Aquasyn® designs and manufactures precision stainless steel valves, sampling and bleed assemblies, and custom-fabricated flow hardware for demanding process applications.

For over three decades, Aquasyn has specialised in high-integrity stainless steel components engineered to perform reliably where fluid control, durability, and consistency matter — from bioprocessing and pharmaceutical systems to chemical processing, utilities, and industrial OEM applications.

Request a consultation Explore Aquasyn catalogue →

Aquasyn concentric inline sampling valve

What Aquasyn Is Known For

Aquasyn is recognised for its engineering-led approach to stainless steel flow hardware, combining proven valve technology with practical fabrication expertise.

Robust stainless steel construction, designed for long service life
Purpose-engineered valve and sampling designs — not adapted industrial parts
Reliable flow control and shut-off behaviour
Practical, operator-focused sampling and bleed solutions
The ability to deliver custom-fabricated hardware when standard components fall short

This philosophy — solving real problems through thoughtful engineering — is what makes Aquasyn Better by Design.

1996

Established — over 30 years of stainless steel valve manufacturing

¼″–6″

Valve size range across the diaphragm valve product line

316L

Standard material — Hastelloy & Titanium available for specialist applications

US Made

All products manufactured domestically in Carson City, Nevada

Solution by Application

The right hardware for every point in your process.

From tank bottom drain management to sterile sampling and custom fabricated assemblies — Aquasyn covers the full stainless steel flow hardware spectrum.

Sampling & Process Access

Sampling / Bleed Valves — Inline, Right Angle, Concentric & Eccentric
Valbow® Sampling Valve
Sample Bottle Assembly — 50 ml to 2000 ml, autoclavable
Sterile Access configurations

Low-point Drain Valve Management

Tank Bottom Valves — ¼″ to 4″, weld, clamp, or bolt mount
Drain-Optimised Diaphragm Valve Bodies
Drain Angle Indicators
Conical profile for complete drainability

Flow Control Valves, Standard & Custom

Two-Way Diaphragm Valves — ¼″ to 6″
Biotech Series — ¼″, ⅜″, ½″ compact bodies
Micro-Bio Series — 1/8″ to ¼″, 40% smaller
Pneumatic & Electric Actuated Valves
Multi-Port & Multi-Divert Valve Bodies
Block-Body Valve Assemblies
Fusion Valves — integrated instrumentation

Point-of-Use Valves

Zero Static Tee Valve Bodies — smallest industry footprint
Point-of-Use (POU) Diaphragm Valves
True Zero Static design
92° bends for maximum drainability
Optional integrated sampling valves

Custom Fabrication & Hardware

Application-led design (SolidWorks, AutoCAD, NX-Ideas)
Precision 5-axis machining & fabrication
Welding, electropolishing & passivation
Assembly and testing with full documentation
Custom Tees, CPMs, manifold assemblies, dip tubes
Hose racks, carboy carts, spargers, filter housings
Equipment re-finishing & modifications

Explore Full Catalogue →

Proprietary Technology

Engineered from scratch.
Not adapted from industry.

Since 1996, Aquasyn's goal has been to break new ground, not retrace the steps of others. Every product is conceived and executed specifically to meet the needs of the bio-pharmaceutical sector.

Ultraz® Diaphragm Technology

High-performance fluoroelastomer diaphragms precision-moulded to tight tolerances. Meets ASME BPE standards and CFR 21 177.2600 extractable requirements. USP Class VI certified.

Valbow® Valve System

90-degree angle diaphragm valve uniquely suited for directional change applications — from hard-to-reach sample points on RO systems to bioreactor directional valves. Minimal internal volume.

Tork-Tite® Bonnet Design

Patented bonnet corner design that maintains diaphragm positioning while preventing extrusion. Provides consistent fixed diaphragm position — autoclavable and fully cleanable.

Fusion Valve — Integrated Instrumentation

Patent-pending hybrid block body combining valve and instrumentation functions. Eliminates instrument tees and dead-leg concerns. Supports pH, DO, ORP, conductivity, UV/absorbance, and turbidity sensors.

Zero Static Block Body Design

Fully machined from solid 316L bar stock. True Zero Static with the smallest industry footprint. Completely drainable, ergonomic exterior, lightweight — with rapid made-to-order lead times.

Integral Sealing Ridge

Sealing ring machined at the flow chamber intersection to minimise areas where process fluids can accumulate. Reduces entrapment potential, maintains consistent flow characteristics, extends diaphragm life.

Manufacturing Capabilities

Built to your spec.
Delivered on time.

Aquasyn's US facility combines advanced machining with hands-on fabrication expertise — from concept drawings to finished assemblies.

Advanced Machining

State-of-the-art 5-axis machining centres for precision stainless steel components. Rapid turnaround on standard and custom products, leveraging stocked components for efficient assembly.

Welding & Finishing

Orbital and hand welding capabilities. Polishing, electropolishing, and passivation in-house. Surface finish from 25Ra to 5Ra, mechanical and electropolished to ASME-BPE standards.

Engineering & Design

Experienced engineers using SolidWorks, AutoCAD, and NX-Ideas. Fully detailed drawings for review and approval. CFD reports available on request. Rapid concept-to-drawing turnaround.

Documentation & Quality

Material Test Reports and Heat Numbers as standard. Certificates of conformance, weld logs, weld maps, and profilometer readings available. Surface finish certificates and borescoping on request.

Exotic Materials

Beyond standard 316L stainless steel — Hastelloy, Titanium, and other exotic materials for demanding chemical, high-purity, and corrosive process environments.

Assembly & Testing

Complex assembly machining capabilities. Full assembly and functional testing completed domestically. Project management support throughout the production process from order to delivery.

Standards & Affiliations

Built to the highest
industry standards.

ASME BPE

BioProcessing Equipment standards for biotech manufacturing

FDA cGMP

Current Good Manufacturing Practice compliance for pharmaceuticals

3-A Sanitary Standards

Sanitary standards for food, beverage, and pharmaceutical equipment

All diaphragms meet USP Class VI. Material Test Reports and certificates of conformance provided as standard.

Precision Stainless SteelFlow Hardware