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The RPI Valve Stem Kit To Fit The 7 & M7 SpeedClave™

Here’s What Happened!

An RPI Tech Help document.


We have been informed by our vendor that our Fill-Vent Valve (RPI Part #RCV052) that fits the Midmark • Ritter 7 and M7, as well as the Ritter 1200 and 1250, will no longer be manufactured. But don’t worry – we have an even better replacement!

After a little brainstorming here at RPI, it was agreed that since 9 times out of 10 the o-rings are the only parts that really wear, a valve stem with o-rings would be all that’s required to fix a leaky valve. So we developed two new kits - one valve stem and o-rings to fit the RPI valve and another valve stem and o-rings to fit the OEM valve. Both kits are now available.

Which Kit Fits What?


Valve Stem Kit (RPI Part #RCS097) fits RPI Fill-Vent Valve with 1/4-28 thread.
Valve Stem Kit (RPI Part #RCS098) fits OEM Fill-Vent Valve with 10-32 thread.

As it is not uncommon in this industry for the OEMs to protect their parts’ interests via proprietary agreements with the original parts maunfacturer, so is the case with the original Fill-Vent Valve. As such there’s a difference between the OEM’s Fill-Vent Valve and the RPI Valve. The difference is simple - the OEM Valve uses two different-sized o-rings and RPI’s Valve uses two of the same-sized o-rings.

So, since there is a difference, you will need to determine which Fill-Vent Valve you have in order to know which of the Valve Stem Kits you need.

The easiest way to determine which Fill-Vent Valve you have is to measure the threaded end. The OEM sold by Midmark accommodates a 10-32 thread. The RPI valve accommodates a 1/4-28 thread. Ask for the RCS097 to fit the RPI Fill-Vent Valve, and the RCS098 to fit the OEM Fill-Vent Valve. (See the front of this flyer for details.)


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