In the valve manufacturing industry, whether the process is standardized and the technology is precise is not only a product issue, but also reflects the comprehensive strength of the enterprise.

Since its establishment in 1985, Zhejiang Zhengpeng Valve Co., Ltd. has always attached great importance to systematic management and quality control of manufacturing processes. This article takes the processing path of a valve as a clue to present the execution standards and system support behind Zhengpeng Manufacturing.

Material testing: strict control of product quality from the source

The manufacturing process starts from raw materials. Zhengpeng conducts composition and performance testing on incoming materials, using spectroscopic analysis and other equipment to confirm whether they meet industry standards such as strength and corrosion resistance. Enter qualified materials into the system and establish quality traceability records.

Precision machining: dimensional control is an assembly guarantee

In the machining workshop, the main parts such as valve bodies are structurally processed through processes such as milling and drilling. On site operators use tools such as vernier calipers for multiple measurements to ensure that critical dimensions meet technical requirements. The machining accuracy is directly related to the subsequent sealing performance and interchangeability.

Detection embedding: each process has a verification mechanism

Zhengpeng sets up detection points in multiple stages. For example, using an ultrasonic thickness gauge to measure the wall thickness of the valve body and identify internal defects; Repeatedly verifying key structures such as hole positions, interfaces, and sealing surfaces through manual measurement tools to minimize deviation transmission.

Each inspection is not only a guarantee of quality, but also a reflection of process stability.

Surface coating: process details affect service life

The painting process is equally important for the appearance and corrosion resistance of valves. After completing processing and testing, Zhengpeng implements standardized coating treatment for the product. Different product types and usage scenarios have different requirements for paint coverage uniformity, adhesion, etc. After the operation is completed, the surface integrity needs to be checked.

Pressure Test: final verification of product performance

Each factory valve must undergo strict pressure testing, including shell strength and sealing performance testing. This step is manned by a dedicated person, and the test parameters and results are recorded and archived. It is a necessary step for factory acceptance and also a guarantee for user safety.

The manufacturing system support behind the complete process

The above process is only a part of Zhengpeng Manufacturing System, but it can intuitively reflect the software and hardware strength behind the enterprise:

Complete supporting processes: capable of machining, testing, spraying, pressure testing and other full chain capabilities, ensuring delivery time and consistency;

Adequate technical strength: Out of 578 employees, 58 are mid to senior level engineering and technical personnel, continuously optimizing the process flow;

Multi base collaborative manufacturing: The headquarters, airport new district casting base (28000 square meters), and testing subsidiaries form a complete chain of research and development, casting, processing, and inspection;

Quality management closed-loop: data recording, process standards, and responsibility traceability mechanisms run through the entire process; High customer recognition: Zhengpeng provides products and services to multiple large petrochemical enterprises and has a long-term cooperative foundation.

Behind high-quality valves is not a reliance on a single technology, but a system collaboration derived from the manufacturing process. Zhengpeng supports the delivery quality of every product with standardized processes and closed-loop execution systems, and also embodies the long-term practice of the enterprise in the manufacturing process.