Reliable Backflow Prevention for Corrosive Applications
PPH Swing Check Valve is a thermoplastic non-return valve designed to prevent reverse flow in industrial piping systems. Manufactured from high-grade Polypropylene Homopolymer (PPH), this valve offers excellent resistance to chemicals, corrosion, and harsh operating environments.
The swing-type disc mechanism ensures automatic operation — allowing forward flow and instantly preventing backflow to protect pumps, pipelines, and process equipment.
At ASK Innocomp, we provide precision-engineered PPH Swing Check Valves suitable for chemical plants, water treatment systems, ETP installations, and various process industries.
Key Features
✔ Automatic Non-Return Operation – Prevents backflow without manual control
✔ Superior Chemical Resistance – Ideal for acids, alkalis, and corrosive media
✔ Low Pressure Loss – Smooth disc movement ensures efficient flow
✔ Corrosion-Free Construction – Rust-proof and long service life
✔ High Temperature Resistance – Suitable up to 95°C
✔ Durable & Maintenance-Friendly Design
✔ Flanged Connection for Secure Installation
Technical Specifications & Engineering Parameters
| Parameter | Engineering Specification |
|---|---|
| Available Size Range | 1-1/2" to 8" (DN40 - DN200) |
| Nominal Pressure Rating | PN10 (150 PSI) |
| Operating Temperature Range | 0°C to +95°C |
| End Connection Standards | Flanged (ANSI 150# / DIN PN10) |
| Body & Wetted Materials | EPDM / FKM Soft Seat |
| Quality & Testing Protocol | 100% Spark Tested (20kV) & Hydrostatic Proof Tested to 1.5x Design Pressure |
| Design Standards | DIN 8077/78, ISO 10931, ASTM D3222, ASME B16.5, DVS 2205 |
Key Features & Operating Advantages
- Severe Chemical Immunity: Full-bore gravity swing flapper valve designed for low cracking pressure and minimal flow resistance in horizontal or vertical lines.
- Zero Metallic Contamination: Eliminates galvanic corrosion and fluid contamination in pure chemical lines.
- Smooth Anti-Scaling Internal Geometry: Delivers minimum fluid head loss and prevents crystallization of salts.
- Long-Term Thermal & Mechanical Integrity: High creep strength and impact resistance under continuous plant load.
- Ex-Stock Dispatch & Mill Test Certification: Supplied with EN 10204 3.1 batch inspection test certificates.
Recommended Industrial Applications
- Acid Pickling & Galvanizing Lines: Concentrated Hydrochloric Acid (HCl 33%) and Sulfuric Acid (H2SO4) transfer.
- Chemical & Agrochem Manufacturing: Pesticide synthesis, organic acid handling, and raw material dosing skids.
- Electroplating & Surface Finishing: Acid copper, hard chrome, nickel baths, and rinse water piping.
- Water & Wastewater Treatment: Demineralized water (DM) plants, reverse osmosis (RO) loops, and effluent neutralization.