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Recent content by jchayes123

  1. jchayes123

    Does anyone make a stainless steel T&P valve

    We are using today an Apollo valve 18c-511-8-150. Details are at http://www.apollovalves.com/_products/18c-500/SS_18C-500_1083.pdf. It's a 3/4" male connection with an 8" probe Has a CSA capacity of 205,000 BTU/HR Has an ASME capacity of 1,912,000 btu/hr Appreciate the help
  2. jchayes123

    Does anyone make a stainless steel T&P valve

    Hello find people out there. I am working on a specification for the oil sands area that requires all stainless steel in the water ways. I cannot for the life of me find a stainless steel body T&P valve. Does anyone know of a source or are T&P valves made from bronze for a specific reason...
  3. jchayes123

    -40F electrical installations

    One last wrench in the spokes. Many of these installations are in an explosive area. I would guess putting in strip heaters my use of hermetically sealed components used in a NEMA 4 box. Would guess my best bet is to place all electrical inside my enclosure that is heated. Would also think the...
  4. jchayes123

    -40F electrical installations

    Really appreciate all the great feedback. Let me throw a bit of a wrench in the spokes. These systems often need to be certified by a 3rd party agency like CSA or UL. Especially going into Canada. Hence the -40F. We are being told that the components must be rated for -40F. Most parts either...
  5. jchayes123

    -40F electrical installations

    I occasionally build water delivery systems for areas that are very cold like -40F/-40C. These systems include electrical equipment like disconnects, relays, circuit breakers, etc. Often the electrical systems are installed external to the building. How do you handle these cold environments as...
  6. jchayes123

    Do systems designed for hazardous locations need to be certified for such locations

    My team designs plumbing systems for hazardous locations for safety showers. These systems use components rated for the specific hazard and certified accordingly. The question I have, am I required to now get my assembled system certified for the hazardous rating or am I good using certified...
  7. jchayes123

    Cost to run piping for safety showers

    I do tempered water system designs for safety showers in many industrial locations like refineries. I will look at point of use tempering and systems that temper many showers on a circular loop. I am trying to determine how much it costs to run pipe in a refinery. This would include pipe, heat...
  8. jchayes123

    What group is Diethanolamine in

    I am working on a refinery job which will have Diethanolamine present. Does anyone know what gas classification this falls under for a CL1 DIV 1 installation. I would be interested to know if there is a web site that lists this information as well.
  9. jchayes123

    What more readily available in the world, "wye" or "delta"

    Thank you Dave and Alan for the responses. Yes I understand a delta can be connected to a wye but a wye cannot be connected to a delta. We offer a wye version of the heater and most installations we have dealt with do not have the nuetral line so we have to develop a delta version. So the...
  10. jchayes123

    What more readily available in the world, "wye" or "delta"

    I am wondering if it is more common to find a supply voltage in a "wye" configuration, or a "delta" configuration throughout the world. This would be a typical industrial service for a 100+ kilowatt water heater. It seems that the delta is more common in the states, but not sure for the rest of...
  11. jchayes123

    B31.1 specification as it relates to safety shower and eyewash equipme

    I am doing a small project for a North American refinery and I am to ensure the system meets B31.3. I have the 2004 version of B31.3 and at this point I have not seen any information regarding schedules of pipes. To not sound too lazy, is there a quick and easy way to determine what pipe and...

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