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Steam Radiator valve is letting off steam....

branimal
branimal Member Posts: 120
I took a closer look and the thing is duct taped/plastic bagged together. WTF!!

I watched a video on how to replace the valve. I have a couple of questions

1. Can i use a sawzall instead of a hack saw to remove the damaged valve? I'll hammer and chisel off after the cut.
2. What type of valve should I replace with?

thanks....








Comments

  • Jamie Hall
    Jamie Hall Member Posts: 15,325
    Lovely, Sawzall, hack saw... angle grinder. Whatever works.

    You must use a steam radiator valve to replace. Others trap condensate and cause water hammer. They come with a matching spud (joined by a union) which goes into the radiator -- and you must use that matching spud and none other, which means you also have to get the old spud out of the radiator, which can be a bit difficult.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
    branimal
  • Is the existing valve not fixable?—NBC
    branimal
  • Danny Scully
    Danny Scully Member Posts: 1,319
    edited December 2018
    Can you see the picture @nicholas bonham-carter? I’ve seen a lot of advice lately on leaving old valves and trying to repair, whether it’s an issue with the height or just “too hard”...We change these valves everyday. It’s time for a new valve @branimal. Sawsall is perfectly fine. If you have the guts :wink:, just try to back it off with a 2ft or 3ft wrench. This is always my first approach, although I would try and brace the piping in the floor somehow.
    branimalethicalpaul
  • luketheplumber
    luketheplumber Member Posts: 123
    I need a backstory on this renovation the how old is the building?
    Learning about Steam and Hot Water Heating Systems. Will Soon be looking for an apprenticeship in Steam Heating as soon as I Graduate.
    branimal
  • luketheplumber
    luketheplumber Member Posts: 123
    replace it with a pot belly valve DO NOT GET A CHEAP VALVE or you will need to replace it again in 5 years and yes go for the sawzall just don't cut too deep
    Learning about Steam and Hot Water Heating Systems. Will Soon be looking for an apprenticeship in Steam Heating as soon as I Graduate.
    branimal
  • neilc
    neilc Member Posts: 1,202
    am I missing something?
    why can't we get 2 wrenches on this?
    Canuckerethicalpaulbranimal
  • I can see the picture, but with the tape, not enough to tell whether it’s fixable or not. For you as a pro, with a replacement valve on your truck, it’s easier, and more expedient to put in a new one.
    For the homeowner, it’s not so easy, and so if it can be fixed with some new packing, or a reseating of the Union nut, I say fix it.—NBC
    branimal
  • Steamhead
    Steamhead Member Posts: 14,318
    neilc said:

    am I missing something?
    why can't we get 2 wrenches on this?

    2 wrenches and some heat should unscrew it.
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
    branimal
  • branimal
    branimal Member Posts: 120

    I need a backstory on this renovation the how old is the building?

    100 year old 3 family in Brooklyn NY. Gutting it floor by floor.
    ethicalpaul
  • branimal
    branimal Member Posts: 120
    Thanks guys, I'm going to wait for a mild day, shut off the boiler and replace the valve. Picked up a replacement valve from HD.
    ethicalpaul
  • ethicalpaul
    ethicalpaul Member Posts: 2,746
    Only 100? Looks like a nice project! Are those fittings galvanized or just dusty?
    1 pipe Peerless 63-03L in Cedar Grove, NJ, coal > oil > NG
  • branimal
    branimal Member Posts: 120
    Upon close inspection looks like I can install a threaded cap over the male threads pictured. I wonder how much in heating costs this leak caused me. 😒
  • Jamie Hall
    Jamie Hall Member Posts: 15,325
    You may find that finding .a cap with the correct threads is harder than it looks -- those threads are half of a union, rather than NPT.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
    delta T1MatthiasethicalpaulCanucker
  • delta T
    delta T Member Posts: 823
    I would be surprised if you couldn't just remove that valve with wrenches, have you tried? The you can replace the valve or cap it off. As @Jamie Hall says, those threads are specific to a union nut. If you find a cap that fits I will be surprised, if you can then get it to actually seal, I will be astounded. The valve is made of brass, the pipe steel, usually not to hard to get them off even after 100 years....
    ethicalpaul
  • ethicalpaul
    ethicalpaul Member Posts: 2,746
    I don’t think it cost you anything in heating costs—the heat still went into the house. Just maybe in make-up water oxidation cost to your boiler.
    1 pipe Peerless 63-03L in Cedar Grove, NJ, coal > oil > NG
  • Gary Smith
    Gary Smith Member Posts: 360
    Easiest temporary to seal that open valve is with a wood block, short piece of 2x4, and a c-clamp
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