3/4" NPT Stainless Steel ( used to be Brass ) Piping Yoke with Orings and Bolts included
Old PN 150A140, Newer PN 1040277 or 3023763
NOTE: Drain opening is 3/8" NPT.
Used in place of By Pass on Autotrol 155 and 255 models.
* NOTE: The holes ( top and bottom ) are spaced ( center to center ) at 3/4" a part.
Fits all 255 models with no issues ( as shown in alternate product photo ).
Some very old 155 adapters might not match ( requiring drilling out adapter hole ) to mount this metal piping boss.
The Noryl version ( AP1040279 ) is 1/8" further apart ( measuring top to bottom ).
Installation TIPS:MATING new parts to older parts can be a challenge with Autotrol valves.The only advice is that the o-ring must be placed on the "male" portion first.
And the bolting needs to be put on "snug" by hand,
and then ALTERNATE tightening of the 4 bolts / nuts with a tool.
Work around the 4 points about 3 times, and they must be as tight as you can get them.
And even then, I've had struggles slow leak issues when attempting to mate the old parts to the new parts.
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Be sure you do not "nick" or damage the 3 o-rings in any way.
