We show you the essentials to look for in a two-speed high-pressure hydraulic pressure test hand pump. Safe hydrostatic testing to 1000 bar
Let’s have a look at two speed hydraulic and pressure test pumps.
All the big players on 700 bar hydraulics have two speed hand pumps for oil. Start pumping and it shifts a large displacement at low pressure then shifts to a small displacement at high pressure, running on up to 700 bar. These are normally used to operate cylinders for jacking and work holding. It is big business.
Don’t confuse these oil units with multi-fluid workshop pressure test workhorses. These are 700 or even 1000 bar two speed pressure test pumps for multiple fluids. Tangye Hydrapaks have been around forever. They are good kit. We like the Hi-Force HMP pump which uses an anodised alloy body and 100% replaceable seats for a long service life. Yes, they are good. Enerpac are in the market as well with their MP unit.
After making our Micropac pumps for 35 years, what features did we put into our own MD series two speeder? As the hand pump expert, we think we have a better two speed pressure test pump.
This is our entry level anodised alloy unit. The space envelope is a lot smaller, but we still have a rugged workhorse. There is plenty of stainless 316 in it as well for light weight and a long service life. If you need a 316 stainless pump, we offer one. That is something that the others don’t offer, but our customers have always told us that if you need stainless, that is a must.
We’ve gone for a manual changeover knob like the Hydrapak and HMP. A rugged button gives the operator 100% control in the field. We always worry about auto changeover being jerky or subject to contamination or corrosion. The manual always seems bulletproof.
We’re using our proven Micropac precise release hold valve for venting out pressure, a neat cartridge relief valve if you need one, our rugged poppet check valve and those heavy duty hard chromed 316 stainless piston rods. All the balls, seats springs and seals are available in an inexpensive kit for a long service life. That’s the way to do it.
You have got a whole range of reservoirs including these easy to use ergo portables, fixed units and a handy two wheel trolley as 10, 20 or 50 litre.
We’re proud of our MD two speeder. Give it a go.
Talk to us today or find out more at sarum-hydraulics.co.uk/
Want to learn more about two speed hand pumps? Read our buyers guide on sarum-hydraulics.co.uk/blog/two-speed-hydraulic-hand-pump/
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