@hvacschool: Multi-position service valves are a LOT different from your typical Schrader valves! These valves have a dual-seating design and come with a few unique design and service considerations. Among these is the packing nut, which you must be careful with. Our latest 3D video takes a look at how these valves work, and it even gets into a few specific types: King and Queen valves. You can watch it on our website at https://www.hvacrschool.com/videos/how-multi-position-service-valves-work-3d/.

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Wednesday 02 September 2026 12:04:28 GMT

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Comments

Brian Foulis :

Then there’s the worst of them all…. Coremax!

2026-09-02 16:25:37

Seany_C :

I was never thought to loosen the packing nut I've never had any leak, how true is this chat?

2026-09-03 21:55:24

Jesse :

hate King valves

2026-09-02 13:01:57

𒉭 🃜🃚🃖🃁🂭🂺 𒉭 :

the more ya know

2026-09-03 22:33:47

Ladiesman2117 :

Or just usr a thumbscrew

2026-09-04 13:25:34

salman :

ok

2026-09-03 23:48:24

Adelson Alexandre :

1/2 volta anti-horário na borca de vedação do eixo da válvula é o suficiente.

2026-09-06 15:57:47

DW5 :

nice

2026-09-02 20:16:37

junior58692 :

👌👌👌

2026-09-05 12:23:21

KüDüR_28 :

🤗🤗🤗

2026-09-03 17:20:52

To see more videos from user @hvacschool, please go to the Tikwm homepage.