Pentair 51000700 spring for 1-1/2 inch and 2 inch multiport valvesPentair Spring for 1-1/2" and 2" Multiport Valves, 51000700$1999
Pentair 51000700 spring for 1-1/2 inch and 2 inch multiport valves
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Pentair Spring for 1-1/2" and 2" Multiport Valves, 51000700

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$1999
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Quick overview

  • Genuine Pentair The factory spring, part 51000700.
  • Two valve sizes Listed for both 1-1/2 inch and 2 inch multiport valves.
  • Loads the valve key The spring is what holds the rotor down against its seat between positions.
  • A common cause of bypass A weak or broken spring lets water slip past the seat, which shows up as sand in the pool or a filter that will not hold pressure.
  • Cheap part of a valve rebuild It costs a fraction of a new valve and is usually renewed at the same time as the seals.
  • Multiport valve parts Sold as the spring alone, so match it against your own valve breakdown.
Full description and specifications ↓

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Product details

Pentair part 51000700 is the spring used in 1-1/2 inch and 2 inch multiport valves. It is the genuine Pentair part from the American Products valve range.

What the spring does

A multiport valve works by turning a keyed rotor across a sealing seat. The spring is what keeps that rotor pressed down against the seat as it turns. When it weakens or breaks, the rotor no longer seals properly and water starts finding paths the handle position did not select. That shows up as sand in the pool, water going to waste while filtering, or a filter that will not build normal pressure.

When to fit one

Usually as part of a valve rebuild. If the valve is open far enough to reach the spring, inspect the seals and the seat at the same time, because taking a multiport apart twice for two small parts is time nobody gets back.

Specifications
Brand Pentair
Manufacturer part number 51000700
UPC 788379693909
Type Multiport valve spring
Fits 1-1/2" and 2" multiport valves
Shipping weight 0.1 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which valves does this spring fit?
It is listed for 1-1/2 inch and 2 inch multiport valves.
What does the spring do?
It puts load on the valve key, holding the rotor firmly against its seat so water only goes where the handle position says it should.
Is this a Pentair part?
Yes. It is the genuine Pentair part, number 51000700, from the American Products multiport valve range.
Should I replace anything else at the same time?
If the valve is apart far enough to reach the spring, it is worth inspecting the seals and the seat while you are in there rather than opening it twice.
Ask your own question