On July 10, 2025, Fleyenda’s team received an inquiry via the official website from Abdul Haris Nasution, an Indonesian client. His company specializes in high-purity chemical material production and is renovating a large-scale chemical production line. The client required 873 full-series manual valves, including ball valves, butterfly valves, gate valves, globe valves, check valves, and various pipeline fittings.

The new production line handles highly corrosive and toxic media, such as 98% concentrated sulfuric acid, 30% hydrochloric acid, caustic soda, and toxic chlorine gas—creating extremely harsh operating conditions. As a result, every component of the valves required specialized customization to meet the rigorous chemical process demands.

Key Client Concerns

During communications, Fleyenda’s Sales Manager Cherry identified three core concerns for the client:

• Material Compatibility: Need for valve materials resistant to specific corrosive media (sulfuric acid, hydrochloric acid, caustic soda, chlorine gas, etc.).
• Connection Reliability: Absolute leak-proof sealing to prevent leakage of toxic or flammable media.
• Valve Core Quality: Attention to the materials and sealing forms of valve discs and seats, with a focus on the chemical resistance of soft sealing materials.

How Fleyenda Addressed the Client’s Concerns

Given the client’s high professional requirements, Fleyenda adopted a meticulous, multi-phase approach to resolve concerns and secure their trust:

In-depth Condition Assessment & Technical Alignment

Fleyenda’s technical team organized an online technical alignment meeting with the client. Based on detailed communications, we compiled a comprehensive “Operating Condition Questionnaire” to clarify critical parameters, including:

• Precise medium composition and concentration
• Temperature and pressure fluctuation ranges during the process
• Maximum and minimum flow rates
• Valve switching frequency
• Required leakage class standards

Tailored Component Solutions with Data Support

After fully mastering the operating condition data, Fleyenda provided actionable solutions for each component requirement:

• Valve Body & Bonnet: Based on the client’s media list, we supplied annual corrosion rate data and service life prediction models for multiple alternative materials under specific concentrations and temperatures.
• Valve Stem: Recommended the most cost-effective and efficient combinations based on media corrosion and erosion properties, accompanied by detailed comparison data on hardness, corrosion resistance, coating thickness, and bonding strength of different surface treatment processes.
• Seals & Valve Core: Proposed chemical-resistant soft sealing materials and metal-to-metal sealing options, with performance test data verifying compatibility with the client’s media.

Customized Documentation & Case Validation

Once the basic technical plan was approved, Fleyenda took the following steps to reinforce trust:

• Created customized assembly drawings and part diagrams for each valve type, along with a complete technical proposal for client confirmation.
• Shared a large number of real-case references from similar extreme operating conditions, including:
  • On-site operation photos of products
  • Valve opening/closing videos
  • Material performance reports from authoritative third parties
  • Relevant international product certifications

These tangible data upgraded the client’s initial approval to full trust.

Additional Value: Sourcing Support for Auxiliary Parts

As this was the client’s first procurement from China, they needed additional accessories but lacked familiarity with suppliers and time for screening. Fleyenda extended support by:

• Sourcing required auxiliary parts from trusted partner factories
• Consolidating all goods for unified shipping to Indonesia
• Saving the client significant time and reducing procurement risks

Client Feedback & Testimonial

In late October 2025, Fleyenda received a positive email from Mr. Nasution, expressing full satisfaction with the 873 manual valves in operation:

“We are extremely pleased with the performance of the valves after commissioning. Both corrosion resistance and sealing reliability have exceeded our expectations. During multiple system pressure tests and daily operations, we achieved ‘zero visible leakage’ at all connection points—completely eliminating our initial fears of ‘running, emitting, dripping, and leaking.'”

He specifically thanked Sales Manager Cherry, stating:

“You truly understand me. When I raised complex customization requirements and vague needs like ‘corrosion resistance’ and ‘leakage prevention,’ many suppliers only sent a product catalog. However, Fleyenda’s Sales Manager Cherry and technical team addressed my long-standing pain points through online technical meetings and the detailed ‘Operating Condition Questionnaire.’ This is our first cooperation, and your professionalism, service capability, and patience have deeply impressed me. I am committed to choosing Fleyenda as my permanent partner for future needs.”

Key Learnings & Fleyenda’s Commitment

Fleyenda’s success with Mr. Nasution reaffirms our core philosophy: We don’t just sell products—we provide solutions to build long-term win-win partnerships.

Our management emphasized that complex cases like this allow us to accumulate and refine expertise to better serve clients facing extreme operating conditions. Whether pre-sales, during sales, or after-sales, Fleyenda stands behind clients to solve problems and grow together.

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