PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 1

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 2

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 3

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 4

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 5

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16 6

PP/PE Check Valve for Drip Irrigation 16/20/25/32mm PN10/16

Place of Origin:

China

Brand Name:

HYRT

Samples:

$46.33/piece | Min. order : 1 piece

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-100000(pieces):7(days),>100000(pieces):To be negotiated(days)

Customization:

Graphic customization (Min. Order: 1000000 sets),Customized logo (Min. Order: 1000000 sets),Customized packaging (Min. Order: 1000000 sets)

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Working Pressure

PN10/ PN16

Certificate

ISO9001

Packing

Carton Box

Color

Blue&Black

Standard

DIN,BS,ANSI,JIS

Usage

Water Flow Medium

Place of Origin

Shandong, China

Type

Other Watering & Irrigation

Material

Plastic, PP/PE

Size

16,20,25,32 mm

Application

irrigation pipe

Product name

check valve

Reliable Leakproof Compact Construction

Designed as a PP/PE check valve for drip irrigation (sizes 16/20/25/32 mm, PN10/PN16), this on line dripper delivers reliable backflow prevention and bacteriological‑neutral water flow so crops receive clean, uninterrupted irrigation. Its lightweight, low‑profile shape and heat‑resistant, impact‑tough construction (available in blue or black) simplify installation, reduce pressure loss and labor costs, and promise a 50+ year service life. Packed securely for shipping with OEM and custom style options, factory quality control, technical support and fast 7–15 day delivery, it gives growers low‑maintenance performance and confidence in long‑term system reliability.

PP/PE Anti-Backflow Drip Valve

Made of durable PP/PE and available in 16/20/25/32 mm with PN10/PN16 ratings and blue or black finishes, this check valve offers bacteriological neutrality, high temperature and impact resistance, smooth inner walls and lightweight construction. Engineered to prevent backflow and protect emitters, it maintains stable pressure for the on line dripper, reduces pressure loss and lowers installation and maintenance costs while providing an expected service life of 50+ years. Easy, secure installation, excellent heat-insulation and sound-dampening properties, plus OEM options and factory testing support, make it suitable for both exposed and hidden irrigation layouts.

Durable PP/PE Check Valve

Made from durable PP/PE, this check valve for drip irrigation is available in 16, 20, 25 and 32 mm with PN10 or PN16 working pressure and comes in blue or black. Designed for use with on line dripper systems, its smooth inner walls, high temperature resistance and excellent impact strength reduce pressure loss and ensure reliable, hygienic performance that meets drinking water standards. Lightweight and easy to install with outstanding thermal insulation and a service life exceeding 50 years, it also supports OEM, custom designs and technical testing to guarantee quality and fast delivery.

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Reliable Durable Prevents Backflow

Made from durable polypropylene/polyethylene and offered in 16/20/25/32mm with PN10/16 ratings, the PP/PE check valve provides reliable anti-siphon and one-way flow control for on line dripper applications, reducing backflow and protecting emitters from clogging. Born from a decade of irrigation engineering and strict quality testing, our brand optimizes molding precision, UV and chemical resistance, and easy push-fit installation to ensure long service life and field-proven performance. Key features include low cracking pressure, robust sealing, corrosion-free construction, compatibility with standard tubing and fittings, and scalable sizing — delivering improved water efficiency, lower maintenance, and long-term cost savings.

Material introduction

Made from high-grade PP/PE (polypropylene and polyethylene), this check valve offers chemical stability and bacteriological neutrality that meet drinking water standards, making it ideal for clean irrigation systems. The PP/PE construction provides excellent heat and impact resistance, low thermal conductivity, smooth internal walls to reduce pressure loss, and a lightweight, corrosion-free body suited to PN10/PN16 pressures and 16/20/25/32mm lines. These material advantages ensure reliable operation and long service life in on line dripper installations while simplifying handling and installation for low-maintenance performance.

◎ Polypropylene (PP)

◎ Polyethylene (PE)

◎ PP/PE combination

FAQ

What is a PP/PE check valve for drip irrigation and how does it work?

A PP/PE check valve is an inline non-return valve made from polypropylene (PP) or polyethylene (PE) designed for 16/20/25/32 mm drip irrigation piping. It allows water to flow in one direction only (indicated by an arrow on the body), preventing backflow and siphoning. Internal parts (spring or seat) close automatically when flow stops or reverses, protecting drippers, filters and pumps.

In which application scenarios is this check valve most useful?

Typical uses include drip lateral lines, mainline manifolds, pump discharge lines, fertigation injection points, greenhouse irrigation sections, and systems on slopes where elevation differences can cause siphoning. It’s also valuable in multi-zone systems to prevent cross-contamination when zones cycle or when using a shared filter or pump.

How do I choose the right size and pressure rating (PN10 vs PN16)?

Match the valve size to your tubing (16/20/25/32 mm) so it fits without stress or adapters. Choose PN10 for typical low- to medium-pressure irrigation (up to ~10 bar / 145 psi) and PN16 where the system or pump can produce higher pressures (up to ~16 bar / 232 psi). For most drip systems 1–6 bar is common, so PN10 is usually sufficient; use PN16 for high-pressure pump systems or when local safety margins are required.

How should the check valve be installed and positioned?

Install inline with the arrow pointing in the direction of flow. Securely connect or barbed-fit into the corresponding diameter tubing and avoid sharp bends or elbows adjacent to the valve. Place it downstream of filters and upstream of sensitive emitters or branches you want protected. It’s good practice to include an easily accessible valve or union nearby for inspection or replacement.

What maintenance is required and how do I troubleshoot common problems?

Minimal maintenance: periodically check for debris, clean upstream filters, and inspect the valve for wear. Common issues: siphoning or reverse flow (valve installed backward or failed seat), dripping past the valve (debris on seat), or no flow (stuck open/blocked). Remedy by flushing the line, removing and cleaning the valve, or replacing it if seals or the internal mechanism are damaged.

Are PP/PE check valves chemically and environmentally durable for irrigation use?

Yes—PP and PE are widely used in irrigation because they resist corrosion and most common fertilizers and irrigation chemicals. They perform well in normal irrigation temperature ranges (typical service from roughly -10 °C to +60 °C) and are lightweight and UV-tolerant when stabilized. Avoid prolonged exposure to strong organic solvents or concentrated acids/alkalis that can degrade plastics; if aggressive chemicals are used, check manufacturer compatibility data.

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18606348185@lwhyrt. com

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0086-18606348185

Our Location

No. 2, Wuhua Street, Fengcheng Industrial Park, Laiwu District, Jinan City, jinan, Shandong, China