508, 1/8" Straight Steam Convector Air Valve Zoom

508, 1/8" Straight Steam Convector Air Valve

SKU:401475

Brand: Hoffman

Hoffman
Qty Price
$8.99
/ each
$43.25 / box (5 units x $8.65)
In Stock! Ships in 24-48 Hours
(2432 Available)
0

Resources

Specs

Application: Convector Vent
Size: 1/8"
Type: Disc-type Vent
Non-Vacuum
System Type: Steam
Max Pressure: 15 psig
Max Operating Pressure: 50 psig
Mount: Straight
Adjustability: Non-Adjustable
Material: Steel
Thread Type: Male
Temperature Range (F): 140°-240°F
Max Temp (F): 240°F
Min Temp (F): 140°F
Thread Size: 1/8"

Description for Hoffman 401475

Air Valve (non-vacuum)

  • Disc-type vent
  • Built-in Check Valve
  • For automatic venting of convectors and radiators
  • Can be disassembled to clean without removing from line
  • 1⁄8" NPT straight shank
  • Maximum steam pressure of 15 psig (1.0 bar)

508, 1/8" Straight Steam Convector Air Valve

REVIEW SNAPSHOT®

by PowerReviews
Hoffman508, 1/8" Straight Steam Convector Air Valve
 
4.8

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

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      Best Uses

          • Primary use:
          • Personal (5)

        Reviewed by 5 customers

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        Displaying reviews 1-5

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        5.0

        I would buy this product again.

        By Bob the repair man

        from Bayside , NY

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about 508, 1/8" Straight Steam Convector Air Valve:

              This product works very well on steam baseboard radiators.

              • Primary use:
              • Personal
               
              5.0

              Perfect replacement

              By Ray the do it your selfer

              from East Hanover, NJ

              Verified Buyer

              Pros

                Cons

                  Best Uses

                    Comments about 508, 1/8" Straight Steam Convector Air Valve:

                    Easy to install and once installed it can be used to vent the system without use of any tools.

                    • Primary use:
                    • Personal
                     
                    5.0

                    Good product for good price

                    By Mel

                    from Rego Park, Queens NY

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about 508, 1/8" Straight Steam Convector Air Valve:

                          I used this air vents on the bedrooms upstair and they are working fine no signs of water on the bottom of the radiator. Shipping was super fast I got them 2 days later. Looking to buy more parts from supply house .

                          • Primary use:
                          • Personal
                           
                          5.0

                          I would buy this product again.

                          By Bob the fixer

                          from Queens, NY

                          Verified Buyer

                          Pros

                            Cons

                              Best Uses

                                Comments about 508, 1/8" Straight Steam Convector Air Valve:

                                This valve is the only one that fits on my baseboard steam radiator and works.

                                • Primary use:
                                • Personal
                                 
                                4.0

                                Good replacement

                                By Exzach

                                from San Francisco CA

                                Verified Buyer

                                Pros

                                  Cons

                                    Best Uses

                                      Comments about 508, 1/8" Straight Steam Convector Air Valve:

                                      Due to space restraints, I used to use the Hoffman 100 air valve on my steam radiator. This Hoffman 508 replaces the discontinued model 100. It functions reliably and is easy to use and adjust.

                                      • Primary use:
                                      • Personal

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                                      Q&A: Ask the Questions, share answers

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                                      get answers from real customers and in-house experts with AnswerBox.

                                      4 Questions | 7 Answers
                                      Displaying questions 1-4
                                      • 508, 1/8" Straight Steam Convector Air Valve

                                        Q:

                                        Is this used for hydronic (hot water) baseboards?
                                        Asked on 10/1/2012 by Nick

                                        3 answers

                                        • VERIFIED BUYER

                                          A:

                                          Yes. It's not obvious from the general description of the product but if you look up some of the specifications and read the installation instructions, it's perfectly acceptable for bleeding air from hot water based hydronic systems. And American made and repairable!

                                          Answered on 10/1/2012 by Anonymous
                                        • VERIFIED BUYER

                                          A:

                                          Hi,
                                          I had not seen this kind of air valves before I bought it either and since its description was saying it is for a steam convectors I decided to try it for my steam cast iron ceiling radiator. Since the valve was small and I did not have enough space to install normal steam air valve it worked fine for my purpose.
                                          As much as I could find out about it (from the Hoffman's link below)
                                          http://completewatersystems.com/product/convector-steam-vents/
                                          this valve is a Disc-type vent as opposed to float type vent(the way most of the steam vents are). In other words it uses different thermodynamics principle to open and close thus letting the air from the steam radiators/convectors out so the steam can get in it and heat.
                                          That being said it seems it is designed to work with steam systems which work at a higher temperature than the hot water systems. It is probably tuned to close when that high temperature steam gets to it, but it might not work well with hot water as its lower temperature might not close it properly and might leak water out.
                                          That is the best opinion I can offer.

                                          Answered on 10/1/2012 by Anonymous
                                        • VERIFIED BUYER

                                          A:

                                          yes, it is used for hydronic systems to bleed air out of the system. Also used on steam systems.
                                          Check and set cap position for each respective system.

                                          Answered on 10/1/2012 by Anonymous
                                      • 508, 1/8" Straight Steam Convector Air Valve

                                        Q:

                                        Is this a comparable or better replacement for the Hoffman model 500?
                                        Asked on 12/4/2011 by Anonymous from New York, NY

                                        2 answers

                                        • A:

                                          The Hoffman 508, 1/8 Straight Steam Convector Air Valve is a better replacement valve

                                          Answered on 12/8/2011 by Anonymous from None
                                        • CUSTOMER CARE

                                          A:

                                          The 508 is the replacement for the obsolete Model 500 valves.

                                          Answered on 12/5/2011 by PexSupply Staff from NY
                                      • 508, 1/8" Straight Steam Convector Air Valve

                                        Q:

                                        CAN THIS BE USED ON GLYCOL SYSTEMS
                                        Asked on 2/16/2011 by Anonymous

                                        1 answer

                                        • CUSTOMER CARE

                                          A:

                                          Yes, it can.

                                          Answered on 2/16/2011 by PexSupply Staff from NY
                                      • 508, 1/8" Straight Steam Convector Air Valve

                                        Q:

                                        Can this #508 be installed in the horizontal position?
                                        Asked on 1/28/2011 by Anonymous

                                        1 answer

                                        • CUSTOMER CARE

                                          A:

                                          Yes. It can be installed either vertically or horizontally.

                                          Answered on 1/31/2011 by PexSupply Staff from NY
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