Project Manager:Eve Sun
Email:eve@ym-valves.com
WhatsApp:+8613523566171
I. Project Background
The client for this project is a modern textile enterprise in Punjab Province, Pakistan, primarily engaged in textile weaving and dyeing. The factory is equipped with a complete boiler heating system, a high-temperature, high-pressure steam pipeline network, and automated dyeing production lines. The textile industry is characterized by continuous, uninterrupted production, and the factory's steam pipeline network operates under harsh conditions of high temperature, high pressure, and frequent temperature fluctuations.
The client's existing valves had poor compatibility with operating conditions, resulting in long-term problems such as valve stem leakage, seal failure, packing aging, and pipeline thermal stress deformation. This led to frequent equipment maintenance, increasing operating costs and causing frequent production line shutdowns, severely impacting production efficiency and factory safety. To completely resolve the pipeline network's operational pain points and upgrade the factory's steam system, the client screened for high-quality valve suppliers online. After thoroughly understanding Yuming Valves' product portfolio, international certifications, and overseas project support capabilities through our website, they proactively sent their procurement requirements via email. Following technical discussions and operational scenario analysis, the client highly approved of our selection plan and ultimately reached a cooperation agreement. They purchased multiple differentiated shut-off valves and related products to complete the replacement of valves in their steam pipeline network.
II. Core Customer Needs
Given the complex steam pipeline network conditions and continuous production requirements of the plant, the customer has proposed refined and differentiated procurement and usage needs, rejecting single-mode valve compatibility and demanding precise matching for different pipeline scenarios:
• Differentiated Operating Condition Compatibility: Differentiating between high and low pressure pipeline usage requirements, forged steel valves are used for small-diameter high-pressure branches, while large-diameter main pipelines are equipped with large-diameter bellows globe valves, eliminating valve mismatch issues;
• Addressing Pipeline Deformation Risks: Large-diameter main steam pipelines have significant thermal expansion and contraction, requiring bellows compensators with appropriate pressure ratings to offset pipeline thermal stress and prevent cracking and leakage of valve bodies, flanges, and welds;
• Full Pipeline Specification Coverage: All types of branch pipelines and auxiliary equipment pipelines in the workshop require a full range of globe valves of various diameters, achieving standardized valve matching for the plant's pipeline network;
• International Standard Compatibility and Acceptance: Compliant with API and ASME international industry standards, supporting third-party inspection;
• One-Stop Complete Supply: Simultaneous supply of valves of different materials and structures for different operating conditions, simplifying the procurement process and reducing integration costs and spare parts inventory pressure.
III. Customized Complete Solution
Addressing the diverse operating conditions and scenarios of customer plant pipeline networks, Yuming Valves offers precise adaptation solutions categorized by product type, specification, and scenario, ensuring that each pipeline section is matched with a dedicated valve product:
1. High-Pressure Branch Line Adaptation Solution: For small-diameter high-pressure steam auxiliary pipelines in the plant area, API 602 A105 forged steel globe valves are used. The overall forging process is adapted to long-term high-temperature and high-pressure conditions, reducing the frequency of maintenance and heat loss of high-pressure precision pipelines, and ensuring the stable operation of the branch line system.
2. Main Pipeline Safety Protection Solution: The DN250 main steam pipe uses a large-diameter bellows Globe valve, with a reinforced valve body structure capable of withstanding continuous operation under high flow and high load. Paired with a bellows compensator of the same grade, it effectively offsets the mechanical stress caused by thermal expansion and contraction of the pipeline, solving the industry pain point of large-diameter pipelines being prone to deformation and cracking, and building a solid safety defense line for the entire plant's main steam system.
3. Branch Line Standardization Solution: All regular branch pipelines in the plant area will be uniformly equipped with a full range of WCB carbon steel globe valves from DN50 to DN250, using a unified PN16 pressure standard and production process, achieving standardized valve matching throughout the plant. The products are suitable for frequent opening and closing conditions, with stable sealing performance, meeting the operational requirements of continuous production in textile production lines.
IV. Core Supply Products
The products supplied for this project are specific to specific operating conditions, with clear product categorization, precisely covering scenarios such as high-pressure branch lines, main pipelines, regular branch lines, and pipeline protection within the plant area. The core supply categories are as follows:
1. High-Pressure Branch Line Dedicated: API 602 A105 Forged Steel Globe Valve

• Product Material: A105 integral forged steel, without casting porosity, dense structure, high temperature resistance, creep resistance, and high pressure impact resistance.
• Applicable Scenarios: Used for small-diameter high-pressure steam branch lines and auxiliary pipelines in the plant area, providing stable shut-off protection for refined high-pressure pipeline systems.
2. Main Steam Pipe Dedicated: DN250 PN40 Large Diameter Bellows Globe Valve + Bellows Expansion Joint

This large-diameter bellows valve is a completely different product category from the API 602 small-diameter forged steel valve. Their valve body structure, pressure design, and applicable operating conditions are not interchangeable. It is specifically developed for high-flow main pipelines:
• Valve Features: Thickened and reinforced valve body structure, withstands continuous impact from high-flow, high-temperature steam; stable bellows sealing performance achieves zero-leakage shut-off;
• Applicable Scenarios: Suitable for DN250 large-diameter main steam pipes in plant areas, undertaking the core steam transmission and shut-off functions of the entire plant;
• Matching Expansion Joint: Matched with a bellows expansion joint of the same PN40 pressure rating, effectively absorbs displacement caused by pipeline thermal expansion and contraction, releases pipeline stress, and provides comprehensive protection for the valve body, flanges, and welds, avoiding cracking and leakage failures under high-temperature conditions.
3. Standard Branch Line Universal: DN50-DN250 WCB Carbon Steel Flange Globe Valve + Spare Flange

• Product Material: High-quality WCB carbon steel, precision cast, uniform valve body wall thickness, robust structure, resistant to media erosion
• Specification Coverage: Covers all diameters including DN50, DN80, DN100, DN150, DN200, and DN250, with a uniform pressure rating of PN16
• Applicable Scenarios: Widely used in workshop branch pipelines, auxiliary pipelines, and equipment front-end shut-off in common operating conditions
• Core Advantages: Smooth opening and closing, stable sealing, standardized specifications throughout the plant, facilitating future maintenance and spare parts compatibility, significantly reducing plant equipment management costs.
V. Production Quality Control and Overseas Inspection Standards
All valves and fittings in this project are manufactured and tested in strict accordance with international standards, with full-process quality control to ensure products are suitable for stringent overseas operating conditions and acceptance requirements:
• Pressure Test: All products are pressure-held at 1.5 times the PN40 rated pressure for 30 minutes, with no deformation or leakage in the shell;
• Sealing Test: Each valve undergoes a zero-leakage sealing test to eliminate potential leakage risks;
• Opening and Closing Performance Test: Smooth opening and closing, no jamming, no abnormal noise, suitable for continuous high-frequency operation.
The customer randomly inspected 50 globe valves via online video acceptance, achieving a 100% pass rate. Yuming Valves conducts 100% factory testing before shipment, ensuring customer satisfaction and smooth packaging and delivery.
VI. Customer Feedback
The customer highly appreciates this cooperation: Yuming Valves possesses exceptional adaptability and selection capabilities for various operating conditions. It can accurately match differentiated valve products to different pipeline conditions, offering professional solutions, stable quality, and complete international certification documentation. Its valves are compatible with the supporting standards of Pakistan's textile industry, making it a high-quality valve supplier worthy of long-term cooperation.