- Home
- Shop
- Proportioners & Replacement Parts
- Check Valve-Polypropylene
Check Valve-Polypropylene
Consistent Flow. No Backflow. Built for Harsh Jobs.
Whether you’re upgrading your system or replacing a worn-out part, the Check Valve – Polypropylene ensures dependable performance in every application. It resists chemicals, holds pressure, and works flawlessly with your proportioning setup.
Trust this valve to protect your system and keep everything flowing in the right direction—job after job.
Hot Summer Savings – 2025
Get 10% Off Everything – Limited Time Only!
SUMMER2025
Factory-Direct Savings
$24.18 – $34.08Price range: $24.18 through $34.08
In Stock - Limited Inventory
We added you to this product's waitlist and we'll send you an email when the product is available.
Leave WaitlistThis product is currently sold out.
No worries! Enter your email, and we'll let you know as soon as it's back in stock.
We added you to this product's waitlist and we'll send you an email when the product is available.
Leave WaitlistThis product is currently sold out.
No worries! Enter your email, and we'll let you know as soon as it's back in stock.
Payment Methods:
SHOPPERS ALSO CONSIDERED
Check Valve – Polypropylene
Durable and Dependable Backflow Protection
The Check Valve – Polypropylene is a great option when you need a reliable backflow preventer with strong chemical resistance for soft wash or chemical mixing systems. It is made of glass-filled polypropylene and has a one-piece design that will provide years of trouble-free service.
The Check Valve is also designed with an internal EPDM gasket and a 316 stainless steel spring to provide smooth and consistent performance even under the toughest conditions. It has a low ½ PSI spring tension so it will open freely for easy flow and prevent any unwanted reverse flow.
Features:
- One-Piece Polypropylene Body: Durable, chemical resistant body will provide years of service
- Glass-Filled Construction: Enhanced strength and chemical resistance in harsh environments
- EPDM Gasket: Tight seal and excellent chemical resistance
- 316 Stainless Steel Spring: Durable and corrosion-resistant for everyday use in the harshest environments
- Low Cracking Pressure: Opens at only ½ PSI so it won’t restrict flow
- High Pressure Rating: Operates at pressures up to 300 PSI for maximum versatility
- Hydro-Mixer Compatible: Direct replacement for Hydro-Mixer XL and XXL check valves
Models:
- 1/2″ FPT x 1/2″ FPT – Hastelloy spring, FKM seals, 1/3 PSI cracking pressure
- 3/4″ FPT x 3/4″ FPT – Hastelloy spring, FKM seals, 1/3 PSI cracking pressure
- 1″ FPT x 1″ FPT – 316 stainless steel spring, EPDM gasket, 1/2 PSI cracking pressure
California Prop 65 Warning: This product may expose you to chemicals including lead. For more details, visit www.P65Warnings.ca.gov.
| Weight | 1 lbs |
|---|---|
| Dimensions | 4 × 3 × 3 in |
| Size | Polypropylene 1/2″ FPT x 1/2″ FPT, Polypropylene 3/4″ FPT x 3/4″ FPT, Polypropylene 1″ FPT x 1″ FPT |
Midwest Washing Equipment – Built for Pros. Priced for All.
With nearly 20 years of industry experience, Midwest Washing Equipment is dedicated to delivering professional-grade cleaning solutions without the premium price tag. We understand the demands of the field because we’ve worked in it—and that’s exactly why we’re committed to offering reliable equipment, affordable pricing, and the best customer support in the industry.
Quality Gear. Real Support.
Our mission is simple: provide top-quality equipment that performs day in and day out—without breaking your budget. But we don’t stop there. At Midwest, customer service isn’t just a department—it’s our culture. Every call, every order, every question matters to us.
From startup contractors to seasoned pros, we work hard to make sure your experience is smooth, your tools work right, and your business keeps moving forward.
We’re proud to serve the pressure washing and cleaning community—and we’re here to help you grow. Let us earn your trust, your repeat business, and your next recommendation.
Midwest Washing Equipment—Where performance meets real support.
Shipping Policy
Thank you for shopping with PCE! We’re committed to fast, reliable shipping across the U.S., with most orders processed within 1 -3 business days. Please note that delivery times may vary based on carrier schedules, weather, and order volume.
Some oversized or heavy items require LTL freight shipping. Freight orders may require a custom quote, and we will contact you to confirm shipping costs and delivery details before charging your card and processing the order.
For full details on processing times, shipping restrictions, tracking, and lost or damaged packages, please review our Shipping Policy.
There are no questions yet. Be the first to ask a question about this product.

Reviews
There are no reviews yet.