Injection Moulding Machine for Foot Valves and Non-Return Valves
Foot valves and non-return valves are made on horizontal injection moulding machines, with UPVC or PP bodies and strainers and POM poppets moulded separately. Body size, thread forming and the strainer mould decide the machine. Strainer slots matter most: thin ribs between many slots fill last and need good venting to avoid short shots.
Selecting a machine for these valves means covering the body and strainer moulds and keeping POM internals on their own barrel. Pratishna Engineers supplies horizontal injection moulding machines for foot valve production and can recommend sizes for your valve range.
Manufacturing Foot Valves?
Give Pratishna Engineers your valve sizes, part list, materials and volumes for a machine recommendation and quotation.
Machine Requirements for Foot Valve Moulding
Foot valves combine a threaded body, a slotted strainer and a moving seal part. Points to cover:
- Venting and fast fill for thin strainer ribs
- Mould space for the many small strainer slot cores
- Accurate seat face where the poppet or flap seals
- Unscrewing or slide action for body threads
- Separate barrel for POM poppets and guides
- Shot capacity for larger body and strainer moulds
Recommended Machine for Foot Valves
Poppets, guides and small non-return valve bodies are light parts for the E Series (75-180 T). Foot valve bodies and strainers for larger pump suction lines carry more weight and mould area, so they suit the C Series (140-320 T), while the H Series (120-350 T) takes the heaviest strainer moulds. The strainer mould, with its many cores, often sets the machine size.
Not Sure Which Machine You Need?
Share your valve body and strainer moulds for a machine recommendation.
Why Choose Pratishna Engineers?
- Application-Based Machine Selection
- In-House Engineering & Manufacturing
- Multiple Machine Series
- Production-Focused Solutions
- End-to-End Technical Support
- Industry-Specific Solutions
- Machine Lifecycle Support
Injection Moulding Machine Buyer Resources
Download practical resources to help you select, size and specify the right machine.
Horizontal Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to select the right machine: product weight, projected area, number of cavities, plastic material, required clamping force, shot / injection capacity, mould dimensions, production quantity, cycle time and automation requirement.
Download PDFPDF · 265 KB
How to Calculate Clamping Force for an Injection Moulding Machine
A clear methodology that explains how clamping force is calculated, covering projected area, injection pressure, safety factor, number of cavities and material considerations.
Download PDFPDF · 363 KBPVC Pipes & Fittings Components & Machine Guide
A guide to PVC Pipes & Fittings components, covering elbows, tees, couplers, valves, end caps, saddles and threaded adaptors. It explains PVC-suited screw and barrel, core pulls and unscrewing moulds, sizing by pipe diameter, and how to match each part to a suitable machine.
Download PDFPDF · 218 KB
FAQs / Buyer Questions
Questions pump valve makers often put to our engineers.
Which Injection Moulding Machine Is Used to Make Foot Valves?
Horizontal machines, chosen for the largest body and strainer moulds. Small valves and internals fit the E Series. Bodies and strainers for bigger suction lines need the C or H Series.Why Do Strainer Slots Give Short Shots?
Ribs between slots are thin and fill at the end of flow, so trapped air and early freezing leave them short. Vents at the rib ends, a gate that feeds the slots evenly and enough injection speed help them fill.Which Material Suits the Poppet or Flap?
POM suits poppets and guides for its stiffness, wear resistance and low friction. Flaps that must flex are often rubber or a separate elastomer part. The seal ring is usually rubber, fitted at assembly.
Can POM Internals Run on the Same Machine as UPVC Bodies?
Avoid it. Hot POM and PVC react and break down if they meet in the barrel. Run POM parts on a separate machine, or purge fully with PP or PE before and after the change.Can Pratishna Recommend a Machine for My Foot Valve?
Yes. Share drawings of the body, strainer and internals, valve sizes, materials, part weights, mould dimensions, cavities and monthly volume, and Pratishna Engineers will recommend suitable machines.Does the Machine Suit Other Pump Line Parts Too?
Yes. Plastic valves, tank connectors, threaded adaptors and pipe fittings can be moulded on the same class of machine, depending on the mould.
Technical Disclaimer
Disclaimer: The information provided in this webpage is for general informational and educational purposes only. It is based on technical references and industry information available at the time of preparation and may be subject to change. It does not constitute engineering, technical, commercial or professional advice, nor does it constitute a quotation, specification, warranty or contractual commitment by Pratishna Engineers.
Actual injection moulding machine and process requirements vary according to the component design, material, mould, production volume, machine configuration and operating conditions. The information, examples, calculations and recommendations provided should be independently evaluated and verified for the specific application before making any equipment, process or production decision. Information obtained from third-party sources remains subject to the accuracy and limitations of those sources.
Limitation of Liability: Pratishna Engineers makes no representation or warranty, express or implied, regarding the completeness, accuracy or suitability of the information for any particular application. To the extent permitted by applicable law, Pratishna Engineers shall not be liable for any loss, damage, cost or consequence arising from reliance on or use of the information contained in this webpage. Final machine selection, configuration and application suitability should be confirmed with Pratishna Engineers based on complete and accurate project requirements.
Talk to Our Engineers
Planning a New Injection Moulding Project?
Share your component, material, mould and production target. Our engineering team will help you identify the right machine configuration.
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