At Process Systems, we supply a complete range of fittings engineered to provide secure, long-lasting performance in industrial, commercial, and domestic systems across Australia & the Pacific Region. Whether you're working with gas, oil, water, or compressed air, our fittings are manufactured to comply with industry standards and deliver strong connections that work every time.
We stock NPT, push fit and BSP fittings in sizes from M5 up to 4” BSP, with a wide range of configurations available — elbows, tees, plugs, BSP connectors, reducers, and more. You’ll also find push-fit fittings, brass and stainless steel options, silencers, and quick couplers in stock and ready for fast shipping.
All threaded fittings are qualified to ensure correct operation and thread compatibility, so you can install with confidence and get consistent results in every application.
Our full range of NPT, push fit and BSP fittings
We offer one of the most comprehensive NPT, push fit and BSP fitting ranges in the country, with products suitable for a wide variety of applications and environments. Our product categories include:
Brass fittings — Durable, corrosion-resistant, and cost-effective. Ideal for oil, water, and low-pressure gas systems.
Stainless steel fittings — Made from 316 stainless steel for corrosion resistance and high working pressures. Built to perform in tough or hygienic environments.
Push fit fittings — Available in plastic and stainless steel for fast, extremely easy installation without tools.
Quick couplers — One-touch Nitto-compatible couplers designed for rapid connection and disconnection in compressed air systems.
Silencers — In both brass and stainless steel to reduce noise in pneumatic equipment.
Hose barbs — For connecting flexible hoses to threaded fittings using a barbed design for leak-free sealing.
Whether you need a replacement elbow, a full system of threaded fittings, or just one BSP connector, we have the components you need in stock and ready to ship.
Quality components engineered for performance and reliability
Each fitting we supply is engineered for long-term performance and manufactured using high-quality materials. Our threaded fittings are produced with qualified thread sizes and tolerances to deliver a reliable fit and consistent seal across all standard BSPP and BSPT connections.
You can maximise sealing performance by installing with the right tools and following best practice, especially in high-pressure or high-temperature applications. All of our fittings are made to ensure strong connections that hold up under pressure, temperature, vibration, and time.
Our fittings are suitable for use in:
Compressed air systems
Hydraulic and pneumatic control
Irrigation setups
Water treatment
Fuel and oil lines
Gas connections
Industrial process systems
Choosing the right NPT, push-fit or BSP fitting
When selecting NPT, push-fit or BSP pipe fittings, it’s essential to consider:
Material – Choose brass for general use, 316 stainless steel for harsh or corrosive conditions, or UV-stabilised plastics for outdoor installations.
Thread size – Ensure your fitting matches the correct thread size (BSPP or BSPT). Our team can help you check compatibility if you’re unsure.
Configuration – Whether you need a straight connector, elbow, tee or plug, we offer a full range of shapes and sizes to suit your layout.
Application – Confirm whether the fitting will be exposed to gas, oil, water, vibration, or chemicals. This will help you choose the most appropriate product.
If you have a question about fitting type, installation, or compatibility, our team is here to help with expert guidance and responsive support.
Installation tips
To ensure the best results from your NPT, push-fit or BSP fittings:
Always install in accordance with the manufacturer's guidelines
Use thread sealant or PTFE tape to maximise sealing performance
Avoid overtightening, which may damage threads or crack fittings
Confirm the system’s pressure and temperature rating before selection
Use appropriate tools for installation, especially with stainless fittings
Store plastic fittings away from direct sunlight before use to preserve UV resistance
Following best practices will ensure not only a secure seal but also long-lasting, trouble-free operation over many years.
Reliable supply, fast delivery
At Process Systems, we keep our most in-demand NPT, push-fit and BSP fittings and accessories in stock, ready for fast dispatch across Australia. Whether you need a single BSP connector or bulk fittings for a project, we can supply what you need quickly and efficiently.
We offer:
Same-day dispatch on stocked items
Free shipping for qualifying online orders
Multiple payment options for a smooth checkout
Expert advice on product selection and replacement fittings
You can browse our range and order online with confidence — our qualified threaded fittings and components are tested, approved, and built to exceed expectations.
Why choose Process Systems?
As part of Process Systems, Valves Online combines over 30 years of industry experience with one of Australia’s most trusted catalogues of process fittings and valves. Our customers count on us for:
High-quality BSP and metric threaded fittings
Expert support and product recommendations
Fast and efficient Australia-wide shipping
Fully tested and approved products made to last
From brass to 316 stainless steel, from push-fit fittings to quick couplers, we make it easy to find the NPT, push-fit or BSP fitting that suits your system.
Browse our NPT, push-fit and BSP fittings today
Whether you’re building a new system or replacing a worn-out fitting, you’ll find the right product in our complete range of BSP threaded fittings and accessories. We have the right thread size, material, and configuration for your application — and the stock to support it.
Browse our range online now or contact our team if you need help choosing the right part. At Process Systems, we’re here to help you build strong connections that last.
Shop NPT, push-fit and BSP fittings online for free delivery Australia-wide
Welcome to our website. If you continue to browse and use this website, you are agreeing to comply with and be bound by the following terms and conditions of use, which together with our privacy policy govern Process Systems’s relationship with you in relation to this website. If you disagree with any part of these terms and conditions, please do not use our website.
The term ‘Process Systems’ or ‘us’ or ‘we’ refers to the owner of the website whose registered office is 4 / 308 New Cleveland Road, TINGALPA, QLD, 4173. Our ABN is 15 010 932 386. The term ‘you’ refers to the user or viewer of our website.
The use of this website is subject to the following terms of use:
The content of the pages of this website is for your general information and use only. It is subject to change without notice.
Neither we nor any third parties provide any warranty or guarantee as to the accuracy, timeliness, performance, completeness or suitability of the information and materials found or offered on this website for any particular purpose. You acknowledge that such information and materials may contain inaccuracies or errors and we expressly exclude liability for any such inaccuracies or errors to the fullest extent permitted by law.
Your use of any information or materials on this website is entirely at your own risk, for which we shall not be liable. It shall be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.
This website contains material which is owned by or licensed to us. This material includes, but is not limited to, the design, layout, look, appearance and graphics. Reproduction is prohibited other than in accordance with the copyright notice, which forms part of these terms and conditions.
All trademarks reproduced in this website, which are not the property of, or licensed to the operator, are acknowledged on the website.
Unauthorised use of this website may give rise to a claim for damages and/or be a criminal offence.
From time to time, this website may also include links to other websites. These links are provided for your convenience to provide further information. They do not signify that we endorse the website(s). We have no responsibility for the content of the linked website(s).
Your use of this website and any dispute arising out of such use of the website is subject to the laws of Australia.
Privacy Policy
This privacy policy sets out how we uses and protects any information that you give us when you use this website.
We are committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website, then you can be assured that it will only be used in accordance with this privacy statement.
We may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes.
What we collect
We may collect the following information:
name and job title
contact information including email address
demographic information such as postcode, preferences and interests
other information relevant to customer surveys and/or offers
What we do with the information we gather
We require this information to understand your needs and provide you with a better service, and in particular for the following reasons:
Internal record keeping.
We may use the information to improve our products and services.
We may periodically send promotional emails about new products, special offers or other information which we think you may find interesting using the email address which you have provided.
Security
We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure, we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect online.
We take all reasonable steps to keep secure any information which we hold about you. Personal information may be stored both electronically on our computer system, and in hard-copy form. Firewalls, 2048 Bit v3 SSL encryption, passwords, anti-virus software and email filters act to protect all our electronic information.
We do not store credit card information, we securely submit credit card information to our bank for processing.
How we use cookies
A cookie is a small file which asks permission to be placed on your computer's hard drive. Once you agree, the file is added and the cookie helps analyse web traffic or lets you know when you visit a particular site. Cookies allow web applications to respond to you as an individual. The web application can tailor its operations to your needs, likes and dislikes by gathering and remembering information about your preferences.
We use traffic log cookies to identify which pages are being used. This helps us analyse data about webpage traffic and improve our website in order to tailor it to customer needs. We only use this information for statistical analysis purposes and then the data is removed from the system.
Overall, cookies help us provide you with a better website by enabling us to monitor which pages you find useful and which you do not. A cookie in no way gives us access to your computer or any information about you, other than the data you choose to share with us.
You can choose to accept or decline cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline cookies if you prefer. This may prevent you from taking full advantage of the website.
Links to other websites
Our website may contain links to other websites of interest. However, once you have used these links to leave our site, you should note that we do not have any control over that other website. Therefore, we cannot be responsible for the protection and privacy of any information which you provide whilst visiting such sites and such sites are not governed by this privacy statement. You should exercise caution and look at the privacy statement applicable to the website in question.
Controlling your personal information
You may choose to restrict the collection or use of your personal information in the following ways:
whenever you are asked to fill in a form on the website, look for the box that you can click to indicate that you do not want the information to be used by anybody for direct marketing purposes
if you have previously agreed to us using your personal information for direct marketing purposes, you may change your mind at any time by writing to or emailing us.
We will not sell, distribute or lease your personal information to third parties unless we have your permission or are required by law to do so. We may use your personal information to send you promotional information about third parties which we think you may find interesting if you tell us that you wish this to happen.
If you believe that any information we are holding on you is incorrect or incomplete, please write to or email us as soon as possible at the above address. We will promptly correct any information found to be incorrect.
Adwords Remarketing Privacy Policy
This website uses the google Adwords remarketing service to advertise on third party websites (including google) to previous visitors to our site. It could mean that we advertise to previous visitors who have completed a task on our site or made a purchase. This could be in the form of an advertisment on the Google search results page or a site in the Google Display Network. Third party vendors including Google use cookies to serve ads based on someones past visits to a website. Of course any data collected will be used in accordance with our own privacy and Googles privacy policy. You can set preferences of how Google advertises to you using the Google Ad Preferences Page.
