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  1. jartgo

    Hydraulic Valve Actuator using System Pressure

    Thanks all for your responses. I have determined that a valve control system very similar to the standard pump control valve that bimr posted, is what we will likely do. We are using a ball valve because it's important that we be able to control the opening and closing speeds whereas a check...
  2. jartgo

    Hydraulic Valve Actuator using System Pressure

    Pump Control Valve for a high service pump (pumping into distribution system). It's a ball valve, similar to attached sketch. Client has requested that the actuator operate using system pressure. There will be no check valve and no pressure switch talking to the control valve. I have...
  3. jartgo

    Hydraulic Valve Actuator using System Pressure

    Illustration which is more representative of the situation I’m dealing with. It will be a hydraulically actuated ball valve. I think I’ve determined that the pressure doesn’t need to be greater than system pressure because I’m not actually pushing against system pressure, just turning the...
  4. jartgo

    Pump Control Valve, Hydraulically Actuated using System Pressure

    I initially posted a question in the water treatment forum but it probably should be in the pump forum. I didn’t see how to move the post, posting link here. Thanks in advance. Link
  5. jartgo

    Hydraulic Valve Actuator using System Pressure

    It looks like in this manual there is only one water inlet into the actuator. Is there then a power unit somewhere to generate a pressure higher than that provided from the water system? That is, I’m going to need to shut the valve against system pressure, therefore I would need a pressure...
  6. jartgo

    Hydraulic Valve Actuator using System Pressure

    Can anyone point me to a general schematic of how this functions? I don’t necessarily need the actuators inner workings. I’m more interested in the connections to the system header. My specific situation is the application of a Pump control valve on a high service Pump. Thus I have...
  7. jartgo

    Wonderware VS. Inductive Automation

    Thanks all for the responses. DanW, I had seen the commentary you pointed me to during the course of my initial search, and it looks promising for IA. djs, I'm also in the southeast USA. Can you point me to anything that would support your statement that WW has been losing market share...
  8. jartgo

    Wonderware VS. Inductive Automation

    Hello, I'm looking for any third party comparisons (white papers, etc.) that might have been done for comparing Wonderware's System Platform to Inductive Automation's Ignition. The use case will be for large water and wastewater plant monitoring & control. Any guidance would be appreciated.
  9. jartgo

    Cantex Style Lift Stations

    Looking for any published information on Cantex style lift stations. Pros (if any) cons (there are a plenty), history, use, etc. Thanks!
  10. jartgo

    Constructing Pump Stations now for Future Use

    Thanks bimr, that's essentially what we've done. They understand that if the design flows are realized, a separate force main will be necessary. At this time we are only doing a force main considering half of the design flow. I'm more interested in things that I might consider with respect to...
  11. jartgo

    Constructing Pump Stations now for Future Use

    I am designing a wastewater conveyance system with a future service area. The proposed system consists of several miles of force main and three pump stations, with zero flow today. Design ADF is about 300,000 GPD, with the largest pump station in the range of 500 GPM. Obviously the system...
  12. jartgo

    Peaking Factors as a function of design capacity

    ...All, The Maryland Department of Environment (MDE) specifies peaking factors as a function of design capacities: Specifically, Hourly PF = (3.2 * Design Capacity ^ (5/6))/Design Capacity I can't seem to locate a source or explanation for this (beyond the MDE manual). That is, typically I...
  13. jartgo

    Water Model Rules of Thumb?

    We're having a small debate in our office about how much field work should be done in developing and calibrating a water model. That is, once the system is sufficiently mapped, what percentage of hydrants should be flowed in order to establish flow conditions. Or perhaps you look for a certain...
  14. jartgo

    Suggestions for archiving scanned files

    Good Afternoon, My firm is going through a process to scan and toss paper files. I know there is plenty of debate surrounding this topic, however, I'd really like to focus on the question at hand versus the debate of whether or not this is a prudent practice. We have a lot of drawings that...
  15. jartgo

    Method for Cataloging Scan Archive

    Good Afternoon, My firm is going through a process to scan and toss paper files. I know there is plenty of debate surrounding this topic, however, I'd really like to focus on the question at hand versus the debate of whether or not this is a prudent practice. We have a lot of drawings that...
  16. jartgo

    Check Valve Causing Water Hammer

    A little more info. The well is one well in a multi-well system, the distribution system maintains pressure via elevated storage tanks. The call for water is then dictated by the level in the elevated tank. When called, the wells feed into the distribution system which also directly feed the...
  17. jartgo

    Check Valve Causing Water Hammer

    Hope everyone is having a great new year. I have a small project I'm working on bringing on line and I'd like to get your opinions about how I might address an issue that is more aesthetic than physical I think, but nevertheless, I'd like to see if I can improve upon it. I have a submersible...
  18. jartgo

    Gas Chlorination Booster Pump Selection

    Maybe I didn't do a well enough job describing my setup, but it is as you describe. The BT4 is also available in stainless. I will certainly look at webtrol. I think my curiosity still stands with the question previously asked. Perhaps it will be more clear once I look at the webtrol curves.
  19. jartgo

    Gas Chlorination Booster Pump Selection

    I'm working on a booster pump for a gas chlorine system. The client is determined to include gas chlorine in lieu of hypochlorite, so that issue is settled. I'm having some reservation with settling on a booster pump for the ejector. The ejector to be provided by the supplier is a REGAL 13A...
  20. jartgo

    Water Meter Bypass Requirement

    Do you all know if there is a general or standard requirement for a bypass line on a domestic water meter of certain size or larger. That is, I see a lot of standard municipal details that require a bypass with locking valve on meter sizes of 1.5 inch and larger. However, I can't seem to...

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