
Dave Wilson, Editor, writes:
We see from your search that you're looking for information on the term "PTFE Diaphragm",
and we have a large number of manufacturers' news releases and technical articles here on Engineeringtalk which will be of interest.
Let me be your guide.
Start with
the news release Thermoplastic relief valves have small footprint from
Plast-O-Matic Valves, which we summarised at the time by saying "Three-port inline relief valve is ideal for systems requiring minimal footprint or where the use of a piping tee is not practical".
Several months prior to that,
we featured the news release Specialist valves enable instrumentation advances from
Asco Joucomatic Numatics: "Steve Meadows of Asco Scientific looks at new developments in specialist medical, biomedical and analytical valve products and outlines how they benefit the market".
In November 2005, we covered the news from ProMinent Fluid Controls (UK)
- take a look at Precision dosing pumps for Kazakhstan
which says: "Prominent Fluid Controls is supplying ten of its Orlita MfS precision dosing pumps with titanium liquid ends for the giant Kashagan oil-field project in Kazakhstan".
Take a look also at the news release from ProMinent Fluid Controls (UK), Dosing pumps come as ATEX-compliant packages,
as well as Aseptic valves show long-term benefits from Millipore,
and Package deal swings it for deioniser manufacturer from Burkert Fluid Control Systems.
See also:
Diaphragm design makes pumping less stressful
(June 2003)
Codip air-operated pumps are a good example of innovative pump design combined with robust construction using durable materials, which together ensure safe and reliable liquids transfer
Isolation valve has novel 'resilient' seal
(March 2003)
A new miniature inert solenoid valve uses a 'resilient' Kalrez1 seal in an innovative and cost-effective design
Dosing pumps tackle tough situations
(October 2002)
The Primeroyal L reciprocating dosing pump with variable amplitude stroke, delivers flow rates up to 3877 litre/h at pressures up to 286bar
Drum-emptying/transfer pump at very low cost
(November 2001)
With a list price of under £100, the Pageboy Toppa drum-emptying/transfer pump is ideal for transferring small quantities of liquids such as, detergents, water- treatment chemicals and solutions
Oil-free pumps meet industrial analytical needs
(January 2001)
Welch Vacuum has developed a range of small, oil-free, standard duty dry piston pumps and patent pending diaphragm pumps for industrial analytical applications and general industrial duties
Dry vacuum system with self cleaning function
(January 2001)
Welch has overcome the practical problems of chemical attack which can lead to pump failure, with the launch of a new dry vacuum system with a self cleaning function
Lightweight drum emptying pump under £100
(July 2000)
Pump Engineering have developed a unique, lightweight (700 grams), injection moulded pump, which is one of the most cost-effective pumps available on the market today

