All manuals I found describe how hydro module of ABS works, when braking - how input and output valves are opening and closing depending on the braking processes - but no one describe their state during driving. I guess the input valve is of NO type and de-energized while driving. Is the...
Who think it is possible to effectively parallel current relays ? For instance, if a 1/2 HP one is not available, one can use in necessity two 1/4 HP relays (however, it is better to add by that an ordinary NO relay to bypass the current to the starting winding). Somebody done this ?
Is there a diagnostic car fault reader/ clearer dedicated especially to car climate control ? Or some that is most suitable for that purpose ? (In case one does not need no other functions)
Why there are gas pressure differential manometers with 1 Pa resolution, but the barometric absolute pressure ones with only 10 Pa (0.1 mBa)resolution ?
In a closed water circulation system with 2-way valves at the consumers and the constant head control, when the valves close, the system resistance and head increases, the system curve comes up and the control through an invertor lowers pump's rpm. Pump curve goes down and the head is kept at a...
Does someone know why
Mastercool 71500-8SRB Die set #8(13/32in Reduced Barrier),
when sold as a part of the hose crimper set, becomes
Mastercool 71500-8SRB Die set #8(1/2in Reduced Barrier),
when sold separately ?
(Note the hose size it is inteded for).
Can someone please assure me that the no flow point on a head flow diagram for a centrifugal pump correspond indeed to the maximal head ? The reason I ask is because I want to replace HUPA 25-7.0 U 180 with HGPA 25-7.0 U 180. For the both the no flow (maximal head on the diagramm) is 7 m, only...
In a high temperature chilling flower walk-in room, for instance, to avoid dehumidification, there are recommended to be used an ovesized evaporator. Thus, there are majorly sensible heat being removed. From what I understand, the SH should be as high as more than 12K, delta Tair-in minus T...
Maybe somebody encoutered this problem too. I have downloaded and registered the Schneider's Twido Suite. But as soon as I open it there is poping up the message that the "navigator" "encountered a problem" and needs to close the program. I cleaned the registries (or so I think), reinstalled the...
Water circulates in a closed system either:
pump - supply pipe - diverting valve - heat exchanger - return pipe - pump
or:
pump - supply pipe - diverting valve - return pipe - pump.
Is not flow greater, while the pump total head unconditionally less in the second case, independently on the...
For instance
NPS 1 inch (DN 25) having outside diameter 33.4 mm will have BSPP thread OD 33.25mm;
NPS 2 inch (DN 50) having outside diameter 60.33 mm will have BSPP thread OD 59.61mm;
and so on.
But how come that NPS 2 1/2 inch (DN 65) having outside diameter 73.03 mm could (allegedly) have...
How in a water system: chiller - the (constant speed) centrifugal pump - fancoils (with 3 way valves) the BOP of the pump can in practice be achieved
- at no demand all 3 way valves get closed (system resistance minimal) the system curve moves to the right, far away from the BOP on the pump...
