Diaphragm Valves

LPE11 Plastic Diaphragm Valve

LPE11 Plastic Diaphragm Valve is a premium, leak-tight flow control solution engineered with UPVC, CPVC and PVDF materials to provide superior corrosion resistance and reliable isolation for aggressive chemicals and high-purity water systems.

Product Description

LPE11 Plastic Diaphragm Valve is a lightweight, corrosion-resistant flow control isolation valve engineered for demanding industrial environments. Designed with an innovative packing-free structure, it utilizes a flexible rubber diaphragm to completely isolate corrosive media from the drive mechanism. This design effectively eliminates common valve issues such as leakage, dripping, and seal failure, making it an ideal replacement for traditional stainless steel valves in aggressive fluid handling systems.

LPE11 Plastic Diaphragm Valve is designed for seamless integration into plastic piping systems. It supports multiple connection methods, including:

Flange, Threaded, and Union connections
Butt-weld, Socket-weld, and Electrofusion connections
Spigot and Socket solvent cement joints

Key Features

Superior Corrosion Resistance: The wetted parts are constructed from premium UPVC, CPVC or PVDF injection-molded components, offering outstanding resistance to strong acids, alkalis, and corrosive chemicals.
Leak-Tight & Hygienic Design: The packing-free, elastomeric diaphragm ensures zero external leakage. Available with EPDM or PTFE sealing membranes (capable of over 1,200 folding cycles), it meets strict national hygiene standards and is perfect for ultra-pure water and sensitive media.
Self-Cleaning Flow Path: The streamlined, unobstructed flow channel prevents media buildup and clogging, making it highly suitable for handling unclean fluids, slurries, or media containing fibers.
Smooth & Reliable Operation: Featuring a robust screw-lifting structure, the LPE11 provides excellent stability, high opening torque, and precise flow regulation with minimal handwheel effort.
Lightweight & Durable: Significantly lighter than metal alternatives, this valve offers high strength, toughness, and excellent UV/aging resistance for extended service life.

Typical Applications

Widely utilized in automated industrial systems, LPE11 is the go-to solution for regulating and isolating highly corrosive, high-viscosity, toxic, or particle-laden fluids. Key applications include:

Chemical processing and petrochemical plants
Water treatment and ultra-pure water systems
Pharmaceutical and food & beverage processing

Specifications

Valve Size:
NPS1/2 - NPS2;
DN15 - DN50
Pressure Class:
PN10
Operating Temperature:
0 to +120 °C / +32 to +248 °F
Process Connection Type:
Flange, Threaded, and Union connections
Valve Bonnet:
N/A
Stem Seal:
N/A
Seat Leakage:
Class VI (FCI-70.2) Standard Leakage Rates, soft seating Class VI-Bubble tight (Zero Leakage)
Flow Characteristics:
Linear
Critical Service:
Clean Service, Chemical Solvent, Multi-Phase Flow
Valve Actuator:
Pneumatic, Handwheel
Valve Accessories:
Limit Switch, SOV, AFR
Certifications:
CE
Media:
Clean Liquid, Mixed Flow
Other Configurations:
Contact your local Lapar business partner or sales office to learn about additional specifications or options for this product.