2022-09-14 Best Bond PEVA Pipe Support Job reference
West Kowloon Cultural District - Use for Chilled water pipe
Haven of Hope Hospital - Use for PIP pipe
Penny's Bay Quarantine Center - Use for Water and Refrigerant pipe

2022-02-17 Examining the Range of Wilden AODD Pump Diaphragm Materials and Designss
It’s a fact of life in any industry that technologies will evolve over time. So it is with the diaphragms that are an integral component in – and actually give the name to – Wilden® Air-Operated Double-Diaphragm (AODD) pumps. When Jim Wilden invented this landmark pumping technology in 1955, there was one diaphragm material option. Over the years, though, the menu of diaphragm designs and materials of construction has expanded to the point where there are options today that can be dialed in for use in even the most specific or unique liquid-handling applications.
The initial AODD pump diaphragm was a pie-shape design constructed of rubber compounds like neoprene and Buna-N. Rubber was the obvious choice at that time because it was the only material that could withstand the repeated flexing that is inherent in diaphragm operation. It was discovered that after extended use, the pie-shape transformed into a more convoluted shape. Seeing as this was the more natural form, the first attempt to improve on basic pie-shaped rubber came with the invention of the Ultra-Flex diaphragm design, a convoluted diaphragm shape – which led to extending the life of the diaphragm more than the traditional pie-shape.
To help extend the application and temperature range of the diaphragms, thermoplastic elastomers, or TPEs, were the next frontier. With TPE materials such as Santoprene®, Hytrel®, Geolast® and Polyurethane, Wilden TPE diaphragms were able to better handle abrasion, chemical resistance, fats/oils, slurries and other materials while also improving diaphragm flex life.
However, the pie-shape design of these diaphragms still had its shortcomings. For one, it needed to be inverted when, which required a fair bit of effort and force to ensure proper installation. This led to the next iteration of the diaphragm design, the EZ-Install. True to its name, the EZ-Install featured a new convoluted shape that eliminated the need to invert the diaphragm during installation, making it easier, faster and safer to install.
After the release of EZ-Install diaphragms, the next advancement was adding PTFE diaphragms to the portfolio. Wilden’s first PTFE models featured smaller inner and outer pistons, reduced-stroke operation (hence, lower flow rates) and a rubber backup diaphragm. Despite their advantages, these early models had poor flexibility since the PTFE was more rigid, like a Tupperware-type material. Over time, the evolution of PTFE materials allowed the creation of full-stroke models that could use the same size outer and inner pistons as the rubber and TPE styles for 20% to 40% increased flow rates. These models also have a TPE backup diaphragm for even better flexibility.
As Wilden continued to release additional diaphragm materials and designs, it became obvious that these advancements were having a profound impact on diaphragm maintenance while leading to increased performance and diaphragm life. Therefore, the Wilden engineering team decided to focus on improving their traditional diaphragm design.
For example, traditional pie-shape diaphragms have an inner and outer piston. With the outer piston and diaphragm meeting point being a vulnerable spot, a lot of diaphragm ruptures and leaks occur here due to outer piston abrasion. It also can be a trap area that can increase wear when pumping abrasive fluids or harbor bacteria in hygienic applications.
This leads to the latest advance in TPE diaphragms, the patented Chem-Fuse and Pure-Fuse Integral Piston Diaphragm (IPD) design. The IPD design features a configuration that encases the outer piston within the diaphragm material, eliminating the outer piston abrasion and trap area. This gives the Chem-Fuse and Pure-Fuse diaphragms significantly longer life than any other diaphragm available today. Chem-Fuse is perfect for abrasive chemical applications while Pure-Fuse is certified and excellent for hygienic and sanitary clean-in-place (CIP) applications.
With a global shift towards energy-efficient solutions and best-production practices, Wilden’s focus has evolved to address these concerns while still maintaining the high performance, quality and customer satisfaction for which Wilden is known. This is why Wilden is dedicated to delivering diaphragm solutions that are more simple, reliable and efficient when compared to competitive options.


2011-06-30 香港卡特彼勒 (Caterpillar) 把一台用了超过25年的水力测功机从2,500 提升至3,000 HP
香港卡特彼勒 (Caterpillar) 把一台服务超过25年的Power Test水力测功机由原来最大2,500 HP测试功率提升至3,000 HP.

这是一台经得起时间考验和赢得用户信赖的水力测功机。它背后全依靠30年前制造商精心制作的可靠和耐用的零配件。对于由制造商不断完善及提升产品质量时而衍生的小改动,我司在这方面全力协助客户选配、更换及组装备件。由于测功机的吸收器不变,所以这台超过25年的人工模式控制设计的Power Test水力测功机,客户是可以很轻松地升级到现在Power Test全自动测功器控制和数据采集系统标准规格。

升级工程已于今夏六月完成,升级后的Power Test水力测功机亦继续投入为客户服务了。

2010-01-13 中华电力龙鼓滩发电厂
After the sucessful modification for the two air intake chambers of the gas turbine gensets for the CLP Power at the Black Point Power Station in Hong Kong, Freudenberg's Compact Pocket Filter T 60 has gained approval and trusted by the station's management team. The T 60's outstanding performance was proved by our client after a 14 month continously operation without replacement. As advised, a filter replacement had to carried out every three to four months before our modification. The modification has already shown a big return of money by no filter replacement and less air pressure differential during the last 14 months. Therefore, higher power output and no loss of power during filter replacement is acheived.

For more details, please contact Edmond Yan
e-mail: edmondyan@meritoneast.com

2009-06-30 香港政府船坞拥有全港最先进的柴油发动机动力测试和废气排放分析系统

2008年秋季,香港政府船坞决定把目前的Power Test柴油发动机测功机和人工数据采集系统升级,以满足现在对动力和废气排放测试的要求。政府船坞要求美国Power Test公司提供协助。作为美国Power Test公司的香港和中国合作伙伴,我们在2009夏季成功为政府船坞完成改造、安装、调试和现场操作培训(包含理论和实践)。新系统是目前香港最先进的一体化柴油发动机测功机连电脑数据采集和废气排放分析系统。


1. 一台改造现有的Power Test 25X08水力测功机
2. 一套全新海水冷却钛合金片式热交换器
3. 一套全新Power Test燃油测量系统
4. 一套全新Power Test PowernetLT测功器控制和数据采集系统
5. 一套全新Lancom-III 9种排放气体分析系统

如需项目详情,可联系我司甄德铭,电邮: edmondyan@meritoneast.com