Flow control2× diaphragm life-cycle for a German control-valve manufacturer
The client's incumbent supplier delivered slower than valves could be built, causing lost production. Harkesh developed a replacement diaphragm and te…

Case study · Process automation
A leading organisation in process and manufacturing automation needed customised seals that could withstand diverse environmental conditions.
The client approached us for customised seals and specified Liquid Silicone Rubber (LSR). After studying the application, Harkesh proposed High-Temperature Vulcanised (HTV) rubber instead.
The switch to HTV improved productivity, significantly reduced lead times and delivered cost benefits — with no compromise on quality or material standards.
Key outcome:
By recommending High-Temperature Vulcanised rubber over the specified LSR, we improved productivity and cut lead times and cost — without compromising quality or material standards.
The challenge
The client approached us with a project requiring customised seals. These seals, crucial for their application, demanded a material that could withstand diverse environmental conditions and maintain superior quality standards.
The initial requirement stipulated the use of Liquid Silicone Rubber (LSR).
Our approach
We organised a comprehensive meeting to understand the specifics of their requirements. After analysing the intricacies of the application, we proposed an alternative solution — High-Temperature Vulcanised (HTV) rubber — having understood the advantages of HTV over LSR for this use case.
The results
Productivity
Higher output
The move to HTV led to a notable enhancement in productivity for the client.
Speed
Shorter lead times
HTV significantly reduced lead times compared with the originally specified LSR.
Cost
Cost benefits
The switch yielded cost benefits with no compromise on quality or material standards.
Our recommendation and detailed justification for HTV instead of LSR resonated with the client. The decision to opt for HTV proved transformative: it led to a notable enhancement in productivity, significantly reduced lead times and yielded cost benefits — without compromising on quality and material standards.
Materials & application
Questions, answered
After analysing the application, we found High-Temperature Vulcanised (HTV) rubber offered advantages over Liquid Silicone Rubber (LSR) for this use case — improving productivity and reducing lead time and cost while still withstanding the environmental conditions and quality standards required.
Both are silicone rubbers. LSR is a liquid, injection-moulded system; HTV (high-temperature vulcanised) is a solid, high-consistency silicone. For this customised seal, HTV gave the better balance of performance, lead time and cost.
Yes. We start by understanding the application in detail and then recommend the material and process that best balance performance, lead time and cost — as we did here by proposing HTV over LSR.

Address
Mumbai Office: Harkesh Rubber LLP, 108, Adarsh Industrial Estate, Sahar Road, Chakala, Andheri (East), Mumbai 400099
General Enquiries
contact@harkeshrubber.com
Business Phone
+91-22-40060400
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