Yuming Valve Malaysian Municipal Water Project: Soft‑Seal Gate Valve Application Guide

Yuming Valve's municipal water supply and drainage upgrade project in Malaysia was successfully completed and accepted. This project is a key local livelihood project. It is responsible for the task of urban main water transportation and the renewal of old pipe networks. The project uses large-scale soft-sealing flange gate valves in large quantities. They operate stably under complex buried working conditions with tropical high temperature and humidity and a lot of sediment underground. It has strict requirements on the valve's anti-corrosion performance, sealing stability, and resistance to sediment wear.

Countries in Southeast Asia continue to promote the upgrading of municipal water supply and drainage infrastructure. Malaysia, Indonesia, and Vietnam have implemented a large number of new and old water supply pipeline network construction projects. Yuming Valve Group has successively supplied batches of municipal and water conservancy projects in the above-mentioned countries, and has accumulated rich practical experience in tropical working conditions.

Combined with the implementation practice of this Malaysian project and many projects in Indonesia and Vietnam, this article popularizes the applicable scope and installation key points of soft-sealing flange gate valves, and interprets Yuming Valve Group's one-stop valve solutions for Southeast Asian projects.

Soft-sealed flange gate valves (elastically seated gate valves) rely on fully-coated elastic gates to achieve two-way sealing. They have full flow channels and small flow resistance. They are the core cut-off valves in municipal water supply and drainage pipe networks. They are mainly used for full-open and fully-closed on-off isolation of pipelines. They cannot be used as throttling valves for a long time.

✅ Recommended scope of application
1. Municipal water supply and drainage field:
·Urban main water supply network
·Renovation of old pipe network
·River water intake
·Water inlet and outlet of water plant
·Secondary water supply in the community
·Rainwater and light sewer lines
·Underground pipe network

This Malaysian project is used for maintenance and isolation of underground main pipeline networks and pipeline on-off control. This type of gate valve is also widely used in urban community water supply pipe networks in Indonesia, irrigation pipelines in Vietnam, and coastal municipal water supply renovation projects to cope with underground working conditions of high temperature, high humidity, and high sediment content.

2. Construction and water conservancy scenes:
·Park fire water supply
·Large building circulating water system
·Farmland irrigation pipelines

Medium conditions: Suitable for non-strongly corrosive media such as normal temperature clean water and treated sewage, and suitable for pipe network conditions containing a small amount of sediment; the epoxy anti-corrosion coating of the valve body has good resistance to moist soil corrosion, and is suitable for rainy tropical Southeast Asia and some coastal buried environments.

❌ Not applicable to working conditions
·Not suitable for high temperature steam and strong acid and alkali media;
·Not suitable for use when the medium contains a large amount of hard large-grained sand and gravel, which may easily wear the sealing surface of the rubber gate;
·Do not leave the throttle half-open for a long time. The high-speed water flow will quickly wash away and damage the rubber seal, causing leakage failure.

Tips:
·In underground pipe networks, priority is given to concealed stem soft-sealed gate valves so that the valve stem is not exposed to reduce corrosion in humid environments;
·Ground machine rooms and pump rooms need to visually observe the opening and closing status, and the open pole style can be used;
·For coastal projects in Southeast Asia, the thickness of the anti-corrosion coating on the valve body can also be strengthened to resist soil chloride ion corrosion.

Key precautions for gate valve installation. Many pipe network failures are caused by irregular installation.

Judging from the on-site construction experience of many Southeast Asian projects in Malaysia, Indonesia, Vietnam, etc., many valve leaks and stuck failures are not caused by the quality of the product itself, but by omissions in details during installation and construction.

In engineering applications, you need to focus on the following points:
1. Cleaning and inspection before installation
·Check that the valve model, pressure, diameter and design parameters match before installation;
·Purge and flush the pipeline thoroughly to clean the welding slag, sediment and debris inside the pipeline to prevent impurities from scratching the rubber sealing surface;
·Check that there are no foreign objects in the inner cavity and sealing surface of the valve before installing it in place.

2. Standard operation of flange docking
·The flange gasket should be placed in the center, and the bolts must be tightened diagonally evenly in stages. It is prohibited to tighten unilaterally vigorously;
·It is prohibited to rely on the valve body to bear the torsional stress of the pipeline. Long-distance pipelines need to add pipeline supports to avoid leakage caused by pressure deformation of the valve body;
·There are differences in flange standards in different countries. In the early stage of export projects, it is necessary to confirm that they match the local pipeline flange standards.

3. Installation location and space reservation
·Allow sufficient space for maintenance operations when installing underground and valve wells;
·Horizontal pipes should be installed with the valve stem pointing upward first to reduce sediment deposition at the bottom of the valve cavity;
·It is strictly forbidden to hit the valve body during hoisting construction, and do not pry the actuator components;
·During construction in tropical rainy season, drain the foundation pit well to avoid valves being soaked in muddy water for a long time.

4. Operation and maintenance habits
·Soft-sealing gate valves are only used for fully opening and fully closing;
·For pipelines that have been shut down for a long time, it is recommended to open and close the valve regularly to avoid long-term pressure adhesion of the rubber gate;
·For field buried projects, protect valve stems to reduce rainwater and soil erosion.

Yuming Valve Group exports batches of valves to Southeast Asia using anti-rust film + solid wood fumigation wooden boxes to withstand the high humidity of ocean shipping and multiple transshipment bumps, ensuring that the products are intact after the goods arrive at the construction sites in Malaysia, Indonesia, and Vietnam.

More than just supply: Yuming Valve Group provides one-stop service to solve project pain points in Southeast Asia

There are common pain points in water projects in Southeast Asia: differences in national standards, difficulty in selection and adaptation, inconvenient cross-regional technical communication, slow overseas after-sales response, long maintenance cycles, and insufficient local spare parts in some countries.

Yuming Valve relies on the exclusive agent cooperation model in Malaysia to create a full-chain one-stop service from preliminary selection, production quality control, logistics delivery, technical guidance, to local warehousing, on-site debugging, maintenance and after-sales service.

1. Early stage: output of technical selection plan
·Docking project drawings, combined with the humid and hot buried working conditions in Malaysia, assisting agents and engineers to complete valve parameter selection, outputting solutions to adapt to the project, and avoiding selection errors from the source.

2. Production stage: strict factory quality control
·All gate valves exported to Southeast Asia undergo 100% shell strength pressure test and two-way sealing pressure holding test. The test data are fully archived to meet the local municipal engineering data review requirements;
·Full factory appearance and size inspection, supporting moisture-proof reinforced fumigation packaging suitable for ocean shipping

3. Two-way technical empowerment between delivery and on-site
·The product is produced and shipped, and the entire logistics process is traceable;
·The domestic technical team remotely provides installation and debugging guidance, promptly solves technical problems at the construction site, and realizes two-way technology between factory + local agent.

4. Localized warehousing and long-term after-sales service
·Relying on the exclusive agent to establish local inventory in Malaysia, goods can be quickly dispatched and shipped locally;
·The local cooperation team can come to complete inspection, maintenance, and fault replacement, solving the pain points of delayed after-sales response for Southeast Asian customers, and realizing the simultaneous implementation of product supply and localized services.

Project summary
In the Malaysian municipal project, the large-diameter soft-sealing flange gate valve withstood the test of tropical humid buried ground and sand-entrained working conditions. It opened and closed flexibly, sealed with zero leakage, and successfully passed the local supervision completion acceptance.

Yuming Valve Group has implemented projects in Malaysia, Indonesia, and Vietnam, fully verifying that the products are suitable for the complex tropical pipeline network environment in Southeast Asia.

Gate valves serve as the "switch guards" of the pipeline network. Selecting the right product is the foundation. Standardized installation and complete supporting services are the guarantee for the long-term stable operation of the pipeline network.

In the future, Yuming Valve Group will continue to export valve products, technologies, and one-stop services adapted to tropical working conditions to more municipal, water conservancy, and industrial water treatment projects in Southeast Asia, and provide a complete set of valve solutions for the construction of water supply and drainage infrastructure in Southeast Asia.