Hello,
Im working on a small high flow dump valve that uses a small round ( 14mm dia) diaphragm as the valve. The diaphragm seals around the perimeter using a circular x-section bead design.
The exhaust port of the valve is an annulus with an ID of 6mm and an OD of 8mm. The annulus is...
Thanks Graham.
I've since heard back from the supplier that the pattern is caused by the slug that they pre-cut and place into the tool. It seems that they use a 3 armed slug rather than a round slug. I am still unclear on why there would be a colour change across the surface and what effect...
Hello All.
My company is having an Diaphragm Compression Molded in EPDM. The part is made in Taiwan. Material is a Nordel 4570 base. Diaphragm is 60mm diameter. The Outer bead is round in section.
The diaphragm acts as a dump valve. It operates 50 cycles per year with a life of 10 years.
I...
Thanks Mike,
I've tried the bag idea and the main problem is that the Lube is so sticky that it becomes very difficult to handle the O rings let alone install them on to the piston. Ill try the syringe and see how we go,
regards,
Craig
Hi All.
we are about to change our CO2 Regulator lubricant to Parker Super O lube. We have been using Xiameter, a 'thin' ( 350 cs) Silicone Oil. We previously 'painted' the Silicone Oil on to the piston O ring prior to install but the Super O lube is very thick and sticky so cannot be...
We manufacture 2 small ( 14mm dia. and 55mm dia) diaphragms from 70 Sh A Santoprene. Both diaphragms act as high flow dump valves. Both dump valves open only 500 times over the entire life of the product. One side of the valve is exposed to 70 PSi with the other side to atmosphere. .Operating...
Hi All
I have an application using small disposable CO2 Cylinders that are screwed into a brass regulator housing. Initially the brass was Dezincifaction Resistant Brass but was changed to 385 due to supply problems. The CO2 cylinders are steel with either a Gold or clear passivate depending...
