How ISRO Propulsion Complex Mahendragiri Achieved Precision and Efficiency with ROTEX REDUNDANT SOLENOID VALVE
![](https://rotexautomation.com/wp-content/uploads/2024/06/ISRO-mahednragiri.jpg)
IPRC
“The ISRO Propulsion Complex (IPRC), located in the scenic Mahendragiri Hills of Tamil Nadu, plays a crucial role in India’s space exploration efforts. As a premier testing center for ISRO’s liquid propulsion systems, IPRC is responsible for the development, qualification, and acceptance testing of subsystems and systems for launch vehicles and spacecraft projects. The facility’s cutting-edge infrastructure supports the assembly, integration, and testing of these propulsion systems, which are vital for ISRO’s ambitious space missions.”
Valve Application
To ensure precise flow control of liquid hydrogen (LH2) and liquid oxygen (LOX) in cryogenic rocket engine testing, IPRC employs solenoid valves to operate pneumatic (nitrogen) actuated valves. These solenoid valves are essential for managing the flow of fuel and oxidizer in the cryogenic engine’s “Gas Generator Cycle” principle, which requires high-pressure, low-temperature storage of hydrogen and oxygen. The system utilizes nitrogen-operated solenoid valves to regulate the flow, ensuring accurate and safe engine testing
![cryogenic rocket engine testing](https://rotexautomation.com/wp-content/uploads/2024/06/Title-500-x-500-px.png)
Challenges Faced
IPRC initially relied on imported solenoid valves but encountered several significant issues:
Service Support
Limited local service support for imported valves led to delays and inefficiencies.
High Costs
Imported valves doubled the capital investment, escalating project expenses.
Self-Reliance Goals
ISRO's initiative to develop indigenous rocket engines necessitated sourcing high-quality, domestically manufactured components.
Extended Lead Times
The delivery of imported valves took 22-24 weeks, causing project delays.
Solution Provided by Rotex
Rotex offered a range of 3/2 and 5/2 redundant solenoid valves tailored for cryogenic engine testing, providing robust and reliable performance.
Rotex 3/2 Redundant Direct Operated Solenoid Valve
- Internal Body: SS316
- Seal Material: Viton, -20⁰C to +60⁰C
- Media: Nitrogen Gas
Rotex 5/2 Internal Pilot Redundant Solenoid Valve
- Internal Body: SS316
- Seal Material:PTFE + Viton, -20⁰C to +160⁰C
- Media: Nitrogen Gas
Benefits to IPRC
IPRC initially relied on imported solenoid valves but encountered several significant issues:
Extended Service Support
By switching to Rotex, IPRC gained reliable local service support, significantly improving maintenance and operational efficiency.
Cost Savings
The shift to indigenous valves reduced capital expenses by eliminating the high costs associated with imported valves.
Improved Delivery Times
Rotex's efficient delivery process reduced lead times to 10-12 weeks, expediting project timelines and enhancing profitability.
Indigenous Proven Product
Embracing Rotex's technology, IPRC achieved independence from foreign suppliers, aligning with India's self-reliance goals while maintaining high performance and quality standards.
![](https://rotexautomation.com/wp-content/uploads/2024/06/isro-log.png)
Challenges Faced
IPRC initially relied on imported solenoid valves but encountered several significant issues:
Service Support
Limited local service support for imported valves led to delays and inefficiencies.
High Costs
Imported valves doubled the capital investment, escalating project expenses.
Self-Reliance Goals
ISRO's initiative to develop indigenous rocket engines necessitated sourcing high-quality, domestically manufactured components.
Extended Lead Times
The delivery of imported valves took 22-24 weeks, causing project delays.
Solution Provided by Rotex
Rotex offered a range of 3/2 and 5/2 redundant solenoid valves tailored for cryogenic engine testing, providing robust and reliable performance.
Rotex 3/2 Redundant Direct Operated Solenoid Valve
- Internal Body: SS316
- Seal Material: Viton, -20⁰C to +60⁰C
- Media: Nitrogen Gas
Rotex 5/2 Internal Pilot Redundant Solenoid Valve
- Internal Body: SS316
- Seal Material:PTFE + Viton, -20⁰C to +160⁰C
- Media: Nitrogen Gas
Benefits to IPRC
IPRC initially relied on imported solenoid valves but encountered several significant issues:
Extended Service Support
By switching to Rotex, IPRC gained reliable local service support, significantly improving maintenance and operational efficiency.
Cost Savings
The shift to indigenous valves reduced capital expenses by eliminating the high costs associated with imported valves.
Improved Delivery Times
Rotex's efficient delivery process reduced lead times to 10-12 weeks, expediting project timelines and enhancing profitability.
Indigenous Proven Product
Embracing Rotex's technology, IPRC achieved independence from foreign suppliers, aligning with India's self-reliance goals while maintaining high performance and quality standards.
“By integrating Rotex solenoid valves into their cryogenic rocket engine testing systems, ISRO Propulsion Complex Mahendragiri not only overcame significant operational challenges but also advanced India’s mission of technological self-reliance. The collaboration with Rotex underscores the value of indigenous innovation, ensuring that India’s space missions continue to soar to new heights with precision, efficiency, and independence.”
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