Pressure Test Dial Assembly

[Bob G]

Just Starting out and need to build pressure testing dial assembly.
I can not find this coupling/fitting, nor do I know what its called.
Its a reducer with 1/8" threads on the side to mount the valve stem.

Any idea what its called?

Thanks everyone.
Bob

[Admin]

Black bell body.

https://www.measureman.com/products/measureman-2-forged-steel-gas-pressure-test-gauge-assembly-3-4-fnpt-connection-0-30psi-3-2-3-accuracy?_pos=1&_sid=9493fb912&_ss=r

You may also want to upgrade to the 115 psi gauge if you plan on testing wrapped or coated piping (not CSST).

[Hgye]

Yellow jacket 78084
I buy mine at WWG Totaline

[Admin]

I find their pricing on tools too high.

Amazon has a bunch of different body options.

https://www.amazon.ca/gp/aw/d/B07T8YF6WF/?_encoding=UTF8&pd_rd_plhdr=t&aaxitk=4aaa1a4d9988be1d8297f99b2c826a5c&hsa_cr_id=9672397290301&qid=1697509103&sr=1-2-3c6b3b04-89d4-46ee-857c-1e2f0de6a70e&ref_=sbx_be_s_sparkle_scm_asin_1_title&pd_rd_w=GI1of&content-id=amzn1.sym.a1b98683-f306-4a89-8df4-662f65c6bae4%3Aamzn1.sym.a1b98683-f306-4a89-8df4-662f65c6bae4&pf_rd_p=a1b98683-f306-4a89-8df4-662f65c6bae4&pf_rd_r=7A1HW5YTNEZCPD45723D&pd_rd_wg=6viof&pd_rd_r=36ff7c78-265e-45a6-890a-3e8599aaac13&th=1&psc=1

[Hgye]

Doesn't the gas code require a 3" minimum gauge?

[Admin]

Yes sorry, you're right.  I didn't even notice the dial size.  And the way the Code is worded you would likely have to carry a 30 PSI and 115 PSI gauge, if you test factory coated or wrapped piping.

Clause 6.22.2 - Before appliances are connected to a new piping and tubing system containing fittings or joints, a pressure test shall be applied using either air or an inert gas (e.g. nitrogen) in the following manner:
(a) Appliance shut-off valves, meters, regulators and any component not rated for the test pressure being applied shall not be connected to the piping or tubing system under test.
(b) The test pressure shall be measured by either a pressure gauge or equivalent device and, if a gauge is used, the minimum diameter shall be 3 in (75 mm) and the maximum range shall exceed the test pressure by at least 15% but not more than 300%. The pressure gauge or equivalent device shall be calibrated to read in increments of not more than either 2 psig (14 kPa) or 2% of the maximum dial reading of the pressure gauge, whichever is less.
(c) A pressure recorder when used for this test shall have a maximum range and be calibrated to the requirements of sub-section (b).
(d) The pressure and duration of the test shall be in accordance with Table 6.3.

You could buy the $17 ($23 CAD) body from Measureman and this $18 gauge from Grainger = $41.  Some people would make it easy and buy the yellow jacket but I am cheap 

https://www.grainger.ca/en/product/PRESSURE-GAUGE%2C3-1-2-IN%2C30-PSI%2CLOWE/p/GGF4FLX6

[Bob G]

Thanks guys. 
I'm just going to build my assembly with a 1/4" "T" fitting.  Have on order a 4" Winters liquid filled Dial and couple of 1/4" tank valves.  Biggest issue will be finding good case to store it in.  Try not to just throw the thing around in the truck, lol.