About Us

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Having experience in the design of Pressure Vessels and Shell & Tube Heat Exchangers as per ASME BPV codes, international standards and specifications of leading Licensors and consultants. His experience is the fine blend of manufacturing and the EPC industry.

He graduated in Mechanical Engineering from the Government College of Engineering-Pune (COEP) in 2005. In 2011, he completed the Post Graduate Executive Management Program from SP Jain Institute of Management and Research, Mumbai and was in the Dean’s Top 3.

He has a good understanding of manufacturing processes and equipment fabrication sequences. His eye for detailing and appreciation for the art of making good engineering drawings helped him successfully lead several drawing automation projects for critical heat exchanger constructions like- HP Screw Plug exchangers (Hi-Hi and Hi-Lo), Urea Strippers, Carbamate condensers and Helixchanger.

He likes to do technical writing and has written various technical papers, articles, training presentations, manuals, SOPs, etc. Design of expansion bellows and bolted joints are the key areas of his interest. He was given the responsibility to do the content writing, editing and graphic design for the website heatexchangerguru.com.

His design career started at L&T-Powai Works in 2005. During his 9 years stint at L&T, he got the opportunity to design critical equipment for the Fertilizer, Refinery, Oil & Gas & Petrochemical industries involving a wide range of materials, design conditions and constructions like:

• Titanium Urea Stripper (Snamprogetti)
• Urea Stripper (Snamprogetti, Toyo)
• Carbamate Condenser (Snamprogetti, Toyo, Stamicarbon)
• Urea Reactor (Snamprogetti)
• Ammonia Unitized Chiller (KBR)
• Helixchanger
• Texas Tower
• Gas-Gas Exchanger
• Titanium Heat Exchangers
• Refractory Lined equipment
• Multiwall High-Pressure equipment
• Skid-mounted steam generation system

Prior to TEMA, he worked as Principal Engineer [Mechanical-Static] at GS E&C- Mumbai Pvt. Ltd for 3 years. He was the ‘Requisition Engineer’ for MRs of Heavy Vessels [ASME Div-2], Filter and Coalescers, Nitrogen Generation Package for the Liwa Plastics Industries Complex (LPIC), Package-3 project in Oman (Execution & Proposal).

Master entrepreneur and technocrat, Haresh Sippy plays several roles with ease. A pioneer in design technology and fabrication methodology in the field of process equipment manufacturing, mainly Shell and Tube Heat Exchangers, he began his career in the mid-1970s by manufacturing Sampling Bombs for Esso Refinery (now HPCL) and Oil and Natural Gas Corporation; a step that resulted in import substitution.

At the invitation of Caltex Refinery, he developed the technology of rolling titanium tubes. The development of Cu-Ni, Ni-Al-Br, and Ti metallurgies and Monel Weld deposits on CS tube sheet blanks are a result of his innovative effort.

TEMA India has its origins in Leo Engineering Works, a company he set up in 1975. The enterprise ventured into the manufacture of Shell and Tube Heat Exchangers and associated components. TEMA India was incorporated in 1987 and has since grown to be one of the largest manufacturers of Shell & Tube Heat Exchangers in India with three manufacturing bases close to Mumbai.

Haresh Sippy holds the Indian patent for Shrink Ring technology deployed in the manufacture of Screw Plug (Breech Lock type) Heat Exchangers used in High-Pressure and High-Temperature Oil & Gas applications. Reducing cost, the technology enhances safety, reliability, and ease of maintenance.

Vice-Chairman of the Heat Transfer Society of India (HTSI) and a member of the American Society of Mechanical Engineers (ASME), he was invited to present a paper (An Improved Design of Threaded Closures for Screw Plug Heat Exchangers) at the 50th ASME Pressure Vessels & Piping Conference held in Vancouver, Canada in July 2016.

In continuation to it, he presented another paper (Design of Threaded Closures for High-Pressure Screw Plug Heat Exchangers Designed to ASME Section VIII Division 2) at the conference in Hawaii, US in July 2017.

Mentoring engineering students gives him the opportunity to share his knowledge and experience with young minds. From time to time, he is invited to address students at Engineering and Management institutes. As head of TEMA India, imparting vocational training and employable skills to the under-privileged is his way of giving back to the community from which the company draws its strength. A deep commitment to the development of indigenous technologies is his mantra for self-reliance and nation-building.

A Structural Engineering graduate of the University of Mumbai, Akhil Sippy started as a Project Coordinator and held management positions across several verticals before being appointed Chief Executive Officer in 2023.

As COO, he has spearheaded a major restructuring and expansion of the company. With his exposure to lean manufacturing practices, he was instrumental in setting up a state-of-the-art manufacturing facility that can deliver on tight timelines. Under his guidance, most of the fabrication processes have been automated. His contribution to the development of the Power segment through partnerships with SPX, Lanco, Skoda, and GE-Alstom has made a significant difference to the company’s bottom line.

As Director-Procurement, he streamlined the supply chain process and introduced the concept of Just-In-Time inventory to ensure 100% availability of material for production, with zero stoppage time and reduced inventory costs. He developed a strong vendor base in domestic and global markets and initiated the system of rate contracts with suppliers.

Currently, Akhil Sippy has been assigned the additional responsibility of heading the business development and client retention function as part of TEMA India’s long-term growth and diversification plans. With his relational and negotiation skills, he has enabled the company to penetrate new market segments and geographies such as Southeast Asia, Central Africa, and Latin America. He single-handedly opened up the FPSO market by securing the EBR/Petrobras order. The thrust into global markets has seen exports contribute to over half of the company’s turnover.

He is the driving force behind establishing and standardizing production norms across TEMA India. These initiatives have resulted in reduced production life cycles and cost, and have enhanced the quality of fabricated equipment.

A business leader with a track record of revitalizing and consolidating businesses, Chetan Doshi is an alumnus of the prestigious Indian Institute of Technology, Mumbai where he studied Mechanical Engineering.

With over 35 years of hands-on experience in multiple capacities at TEMA India, his meticulousness is best deployed in techno-commercial matters and put to good use as Director-Commercial. In this role, he ensures the smooth flow of funds for the company’s operations. He has been instrumental in raising working capital, enhancing credit limits, and introducing systems of financial control. He provides specialist advisory inputs on debt planning in line with the company’s long-term growth strategy.

In an earlier role as Director-Sales and business Development, he was instrumental in developing a customer base in India, the US, Europe, the Middle East, and Southeast Asia. Eschewing the expense-heavy route of setting up offices abroad, he increased profitability by appointing local representatives for tenures linked to the duration of the projects being undertaken in such markets. Under his direction, TEMA India has emerged as a preferred global manufacturer of Heat Exchangers.

As a full-time director on the board, Chetan Doshi is involved in planning, directing, and controlling all functions of the company. Monitoring and revising company policy, developing new operational procedures, and grooming fresh talent are part of his extensive portfolio of responsibilities.

His interpersonal skills and the ability to liaise with government and external agencies have contributed to an ever-growing list of satisfied customers.

Having completed his Master of Computer Engineering in the USA and his Bachelor’s degree of Engineering from India. He has vast experience of more than 25 years in Manufacturing and Sales of engineering products. He has worked in India and abroad in various organizations focusing on technology and automation. In 2009, Cerec Metalform Private Limited was built by him from the grassroots level.

His hands-on experience in manufacturing, solving technical problems, and managing the workforce gives him the advantage to build a manufacturing business successfully from scratch.

With international experience in private sector projects, he developed and mastered multiple disciplines that yield results.
He is a highly accomplished and experienced professional who plays a crucial role in the success and growth of our organization. With his exceptional leadership skills, strategic thinking, and diligent approach, he has proven himself to be an invaluable asset to our team.

As a director, he is dedicated to ensuring the continuous improvement of our company. He has implemented a strong corporate culture based on integrity, innovation, and collaboration, fostering an environment where employees can thrive and reach their full potential. Through his strategic planning initiatives, he has successfully streamlined our operations, resulting in increased efficiency and cost savings.

Furthermore, Ashish possesses a forward-thinking mindset, always staying ahead of industry trends and technological advancements. He encourages and supports the adoption of modern tools and technologies, driving innovation within our organization and ensuring that we remain competitive in an ever-evolving market.

In addition to his professional accomplishments, He is also known for his personal qualities that make him a respected and admired leader. He is approachable, and empathetic, and values the inputs and opinions of every team member. He fosters a sense of camaraderie and inclusivity, creating an open environment that encourages collaboration and creativity.

A pioneering mechanical engineer with a legacy of innovation, Narendra Rao has not only transformed the landscape of nuclear engineering in our country but also blazed a trail in the manufacturing of critical equipment.

Since 1988, has been the Founder Director of ‘PEC Valves Pvt. Ltd.’ and ‘Ornate Valves Pvt. Ltd. have been involved in the design, manufacturing & supply of critical valves to the Indian Nuclear industry for the last more than 2 decades From 1989 to 2010, Design, Manufactured, and Executed critical proprietary ASME Sec III NB, NC & ND valves for Nuclear Power Corporation of India Limited for NAPP, TAPP, KAPP, RAPP. First in India to Perform Shake Table Test on Electrically Operated Gate Valve in 1990 for KAPP 1 & 2, Tested at IIT Mumbai.

Testable Non-Return Valves and Tilting Disc Non-Return Valves with Dash Pot, Non-Slam Design for NPCIL. In 2015, designed, Manufactured, and executed the first indigenous Main Steam Isolation Valves (MSIVs) for NPCIL – KAPP 3 & 4, by conducting a successful flow interruption test at AREVA – Germany. After the disinvestment of PEC Valves & Ornate Valves in 2016, and to pursue bigger dreams/goals and challenges, associated with TEMA India Ltd. as the Director – Nuclear Business, responsible for the overall Nuclear business of TEMA globally.

His expertise in the nuclear field and his engineering prowess have led to many firsts and several import substitutes paving the way to indigenous manufacturing of critical equipment viz., Main Steam Isolation Valves (MSIVs), Instrument Support Stands, Distillation Columns, etc. which were introduced in the country. Narendra Rao is a Mechanical Engineering Graduate from a Regional Engineering College, in Bangalore.

Mechanical engineer from Datta Meghe College of Engineering. A topper during his diploma engineering at KJ Somaiya College of Engineering Mumbai; an astounding design professional who has risen the ranks within a short period. Worked with KBR Godrej and Boyce PED.

Well-abreast with the various requirements of National and International codes such as Indian Standards, Indian Boiler Regulations, ASME, TEMA, HEI, API 660, 934, etc. AD‐Merkblatter, API‐ 934A, API‐650, NACE MR0175.

Has experience in working with prestigious projects for Petrobras‐Brazil, TATA POWER, and EAgrium projects for UHDE Germany. A great mentor to junior colleagues.

A Mechanical Engineering graduate from the University of Plymouth (UK), I am a highly accomplished Global Sales Manager with extensive experience in developing new business prospects as well as managing existing customer relationships across various high-end markets such as Aerospace, Hydrogen, Nuclear, Oil & Gas, Petrochemical, Specialty Chemical, Fertiliser, Pharmaceutical, and Food Processing industries.

My expertise in business development includes identifying market opportunities, analyzing industry trends, and developing and implementing strategic business plans to achieve revenue growth and market expansion across continually expanding geographic regions.

With a deep understanding of the market and customer needs, I have a proven track record of consistently meeting and exceeding sales targets and building strong relationships with key stakeholders, including Process Licensors, End Users, and EPC Contractors.

I am also skilled in forging strategic alliances and business partnerships while adeptly negotiating complex deals to ensure mutual benefits for all parties involved.

With a commitment to Business Development and a passion for Relationship Management, I am confident that I can make a valuable contribution toward driving business growth in even the most dynamic and challenging global environments.

Key Exposure: Market Research, Market Intelligence, Strategic Marketing, Competitive Analysis, New Business Development, Customer Relationship Management, Key Account Management, Channel Sales Management, Sales Budgeting and forecasting, Contracts and negotiations, Project and team Management, Process Optimisation and innovation.

With a robust professional background spanning more than 17 years, Mechanical Engineer with a diverse range of activities related to Shell & Tube type Heat Exchangers, Pressure Vessels, Columns, and Reactors.

His expertise extends across the entire spectrum of these components, encompassing manufacturing, design, and costing of equipment.

Collaborated with various metallurgies, specifications, and designs, showcasing a versatile skill set. Well conversant with high-end design software for Shell & Tube Heat Exchanger – Microprotol software (Autopipe Vessel).