Pentair Multiport/Slide Valve Shaft O-Ring Kit | JV18
Pentair
SKU: JV18
Pentair Valve Stem / Shaft O-Ring (O-47) | JV18
The Pentair JV18 is a replacement valve stem/shaft O-ring (commonly referenced as O-47) used on select Pentair valves and filter valve assemblies. This small seal helps prevent leaks and air intrusion around the moving shaft/stem area, restoring smoother operation and more reliable sealing when the original O-ring becomes flattened, brittle, swollen, or nicked.
Common Applications
- Pentair side-mount multiport valves (where the parts list specifies JV18 / O-47)
- Pentair PVC slide valves (where specified)
- Pentair SM / SMBW 2000 Series filter valve assemblies (rotor/valve assemblies where JV18 is listed)
- Other Pentair equipment that calls out JV18 for the shaft/stem O-ring position
Key Features
- Stops seepage around the valve stem/shaft area when the existing O-ring is worn.
- Helps prevent air leaks that can cause bubbles, loss of prime, or inconsistent operation on some systems.
- Direct replacement for the JV18 O-ring location—simple, inexpensive maintenance part.
- Common cross-reference: often listed as O-47 (naming varies by catalog and supplier).
Specifications
- Brand: Pentair
- Part Number: JV18
- Part Type: Valve stem/shaft O-ring
- Common Reference: O-47 (cross-reference)
- Quantity: Sold individually
When to Replace
- Dripping or moisture around the valve stem/shaft area
- Valve feels “grabby” or doesn’t move smoothly after lubrication/cleaning
- O-ring is visibly cracked, flattened, swollen, or nicked
- Seepage begins after seasonal service or after disassembly/reassembly
Installation Notes
- Turn off the pump and relieve system pressure before servicing any valve.
- Remove the stem/shaft component as required for your specific valve design.
- Clean the O-ring groove and sealing surfaces before installing the new O-ring.
- Lightly lubricate with silicone pool lubricant (never petroleum-based) and seat evenly without twisting.
- Reassemble and check for leaks under normal operating pressure.
Related Products
- Search Aqua Pool Supply for JV18
- Silicone lubricant for O-rings and seals
- Multiport valve O-rings and seals
- Slide valve seals and O-rings
Maintenance Tips
- Replace small stem/shaft O-rings proactively during valve service—old seals often fail shortly after reassembly.
- Use only silicone-based lube in light amounts; too much lubricant can attract debris and accelerate wear.
- Keep valve areas clean and protected from direct sun when possible to extend the life of rubber seals.
- If leaking continues after O-ring replacement, inspect the stem/shaft and bore for scratches or wear that can prevent sealing.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
