How many type of needle (pin) designs to control the pressure with a timer cap? (As much I know, there would be "slope" needle (no seals o-ring required, but you have to tight very hard to seal), and

Has anyone seen a water-powered control valve that might be used to regulate water supplied to a kids wading pool or splash pad - type recreational facility?

I

We are haing problems with single stage pumps that work with sour water (from crude oil desalators). Temperature: 120?C These pumps have single seal with flush plan 41, with cyclone separator and heat

I am interested to measure the water depth in a tank above a reference point. The water depth or pressure varies above the reference point from 0 to 2.5 meters. How can this be done in a cheapest way

What is the common desired valve type for releasing high pressure? I have a system to pressure test assemblies in the oil and gas industry, and I

Does anyone know of a good method to calculate the quality of steam leaving the disengagement space of a waste heat boiler? The boiler recovers heat from reactor effluent and produces steam to cool t

With a PLC is it possible to get analog outputs of 0-30VDC @ 1.0 Amp max? It looks like the PLC analogs outputs go from +/- 10VDC. Does anyone know of a way to get a variable controlled analog from a