Why Choose ACE Penstocks?
Aquatic Control Engineering (ACE) is the leading provider of penstocks for water management solutions in the UK. Our high-quality products, manufactured with precision, offer reliable flow control in a variety of environments, from flood defense systems to wastewater treatment facilities. Whether you’re managing river levels or controlling water flow in industrial settings, our penstocks are designed for maximum efficiency and longevity.
Low Maintenance
With no metal on metal moving parts there is virtually no chance of our penstocks seizing, meaning the penstocks require practically no maintenance.
Automated Operation
Our penstock range is compatible with all actuator systems. Meaning our penstocks can be setup to be operated autonomously depending on the criteria.
Superior Sealing
Unlike stoplogs, penstocks can seal a pipe on all four sides, ensuring a robust isolation of flow.


About Penstocks
A penstock is controlled by a mechanically operated spindle. The spindle can be operated automatically through the use of an actuator. This could be activated once specific set levels are reached. Therefore, removing the need for any human interaction. Penstocks also seal a pipe on all 4 sides. However, this is something that stoplogs are unable to do.
Why Choose Penstocks
01
Efficient Flow Control
TThe raising and lowering mechanism of penstocks allows for precise control of water passage, enhancing operational efficiency.
02
Automation Benefits
The automatic operation of penstocks reduces the need for constant manual monitoring, saving time and labor costs.
03
Effective Isolation
The ability of penstocks to seal a pipe on all sides ensures effective isolation of flow, making them ideal for water or sewerage control.
04
Adaptability
With their hand-operated or actuator-controlled design, penstocks offer adaptability to different operational needs.
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Frequently Asked Questions
A penstock is a used to control or stop the flow of water. Penstocks can be controlled automatically with the use of an actuator or manually. When used in flood protection penstocks often act as the second line of defence.
ACE penstocks are manufactured using Stainless Steel 316 and HDPE. The nut blocks on the ACE penstocks are made of either bronze or Polyoxymethylene (POM) depending on usage. Should your penstock need to be operated more that once a week we recommend a bronze nut block.
Yes. Our penstocks are fully compliant to BS7775:2015, and we can provide in-house test reports of various sizes to confirm this.
ACE supply multiple types of penstocks. Our range is manufactured through our brand of water flow control, AQUIKO. The penstocks we offer are:
- Wall mounted penstock
- Lightweight penstock
- Flush Invert Penstock
- Channel penstock
- Weir penstock
- Double leaf penstock
- Inline penstock
Both types should comply to BS7775, however the leakage rates allowable for Cast iron penstocks is higher than is allowed for “fabricated penstocks with a resilient seal”. Our penstocks also have seals which self-adjust and do not require adjustment. Cast Iron penstocks have machined surfaces which have to be adjusted very accurately to ensure a smooth and tight fit. This is prone to damage and soon wears, requiring further adjustment, or more commonly, more leakage occurs as they are not adjusted.
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Features of ACE Penstocks
ACE penstocks are renowned for their durability, environmental compatibility, and precision engineering. We offer a comprehensive range of designs, materials, and sizes, ensuring that you’ll find the perfect solution to meet your needs. Each one is rigorously tested to withstand the toughest conditions, guaranteeing long-term, reliable performance.
- Versatile Applications: Suitable for water and sewage treatment plants, flood protection, and environmental water control projects.
- Custom Designs: We provide bespoke solutions tailored to your specific project requirements.
- Eco-Friendly Solutions: Our products are designed to minimise environmental impact, supporting sustainability in water management.
Features of ACE Penstocks
- Materials: We offer penstocks in stainless steel, HDPE, and other durable materials to suit various applications. All materials meet industry standards for corrosion resistance and longevity.
- Easy Installation: Our products are designed for seamless installation and minimal maintenance, reducing downtime and operational costs.
- Precision Control: Offering precise flow control with a variety of actuation options, from manual to fully automated systems.
UK-Made, Quality Assured
All ACE penstocks are designed and manufactured in the UK under our brand AQUIKO, ensuring that our products meet the highest quality standards. By sourcing locally, we reduce lead times and offer faster delivery to our UK clients, ensuring your projects remain on track.
Certifications & Standards
Our products are manufactured to meet ISO 9001 quality management standards, ensuring consistency in product quality and customer satisfaction. ACE is also committed to adhering to Environment Agency regulations, making our penstocks an ideal choice for public infrastructure projects.
Supporting Flood Defenses & Environmental Protection
Penstocks play a critical role in UK flood defenses, and ACE is proud to provide robust, reliable systems that protect communities and infrastructure from the impact of flooding.
Get in Touch
Need expert advice on selecting the right penstock for your project? Contact our team today for more information or to request a quote. Our experienced engineers are ready to guide you through every step of the process.