Acetal (POM) Water Valve
An acetal co-polymer valve body and/or spin ring in a solenoid operated dishwasher or washing machine valve has been found to reduce a likelihood of breaking when subjected to freezing and thawing conditions over the polypropylene and glass filled nylon components normally employed in the marketplace.
1 . A residential appliance valve comprising:
a valve body having an inlet and an outlet;
an armature moving relative to a guide tube, said armature having an armature tip connected to a diaphragm insert which selectively seals against a diaphragm on the valve body to thereby provided a closed configuration preventing flow from the inlet to the outlet; said armature movable to unseat the diaphragm insert from the diaphragm to permit flow through the diaphragm in an open configuration;
wherein the valve body is formed of acetal co-polymer.
2 . The residential appliance valve of claim 1 wherein the valve is located within one of a dishwasher and a washing machine.
3 . The residential appliance valve of claim 2 further comprising a spin ring connecting the guide tube to the valve body.
4 . The residential appliance valve of claim 3 wherein the spin ring is formed of acetal co-polymer.
5 . The residential appliance valve of claim 1 wherein the armature is spring biased with a spring.
6 . The residential appliance valve of claim 5 wherein the valve fails shut upon failure to receive sufficient voltage to maintain the armature and valve in an open configuration.
7 . A residential appliance valve comprising:
a valve body having an inlet and an outlet;
an armature moving relative to a guide tube, said armature having an armature tip connected to a diaphragm insert which selectively seals against a diaphragm on the valve body to thereby provided a closed configuration preventing flow from the inlet to the outlet; said armature movable to unseat the diaphragm insert from the diaphragm to permit flow through the diaphragm in an open configuration;
and a spin ring retaining the guide tube to the valve body;
wherein the spin ring is formed of acetal co-polymer.
8 . The residential appliance valve of claim 7 wherein the valve is located within one of a dishwasher and a washing machine.
9 . The residential appliance valve of claim 8 wherein the armature is spring biased with a spring.
10 . The residential appliance valve of claim 9 wherein the valve fails shut upon failure to receive sufficient voltage to maintain the armature and valve in an open configuration.
11 . The residential appliance valve of claim 10 wherein the spin ring is formed of acetal co-polymer.