The John Guest Polypropylene Tank Ball Valve delivers tool-free quarter-turn control for reverse osmosis bladder tanks using push-fit quick-connect technology. Available in 1/4" (PPSV500822W) and 3/8" (PPSV501222W) configurations, this food-grade valve installs in seconds and withstands the demands of potable water systems.
SPECIFICATIONS
Core Features
Connection Type
Push-Fit Quick-Connect
No tools required
Valve Operation
1/4 Turn
Open to closed
Body Material
Polypropylene
White finish
O-Ring Material
Food Grade EPDM
Potable water safe
Handle Material
Acetal Copolymer
Durable construction
Collet Teeth
Stainless Steel
Secure grip
TECHNICAL DETAILS
Component Specifications
| Model Numbers | PPSV500822W (1/4" QC), PPSV501222W (3/8" QC) |
| Connection Sizes | 1/4 inch or 3/8 inch quick-connect |
| Primary Application | Reverse osmosis bladder tank shutoff |
| Chemical Resistance | High resistance to potable water treatment chemicals |
| Approved Use | Potable water and compatible liquids (consult for non-water) |
| Not Suitable For | Compressed air, explosive gases, petroleum spirits, fuels, heating systems |
| Manufacturer | John Guest |
COMPATIBILITY & APPLICATIONS
Where This Valve Works
The John Guest tank ball valve is engineered specifically for reverse osmosis storage tank installations where quick disconnection and reliable shutoff are essential. The push-fit design accepts tubing without clamps or threading, making tank swaps and system maintenance straightforward. Both PPSV500822W and PPSV501222W models feature the same polypropylene body and food-grade EPDM seals that meet NSF standards for potable water contact. The 1/4 turn operation provides positive shutoff when you need to isolate the tank for filter changes or system work. While designed for water, consult John Guest customer service if considering use with other potable liquids, as compatibility varies by chemical composition.
💧 Push tubing firmly into the collet until it seats, then pull gently to confirm the stainless steel teeth have gripped. To disconnect, push the collet toward the valve body while pulling the tubing straight out.
