Walchem EZB11D1-PC Metering Pump 0.6 GPH – 150 PSI – 115V
Original price was: $504.00.$355.36Current price is: $355.36.29% OFF
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Model: EZB11D1-PC
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Flow Rate: 0.6 GPH (2.27 LPH)
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Pressure Rating: Up to 150 PSI
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Pump Type: Diaphragm metering pump
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Power Supply: 115V AC
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Adjustable Stroke Length and Frequency: Fine-tune the flow rate to meet precise dosing requirements
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Compact and Durable Design: Space-saving design for easy installation and robust performance
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Minimal Maintenance: Few moving parts, with easy-to-replace components and long service life
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Cost-Effective: Energy-efficient with low operating costs
- High Speed Performance E-Series pumps operate at 360 strokes-per-minute, providing high resolution chemical feed. Most competitive products operate at slower speeds, resulting in slug feeding, accelerated diaphragm wear and poor feed control.
- Engineered Longevity All E-Series pumps feature dual bearing support. The armature and shaft are supported with a bearing on each end, which ensures proper axial movement, enabling the E-Series to operate at 360 SPM while extending the life of the diaphragm.
- Superior Check Valve Performance Dual Check Valve Assemblies in both suction and discharge fittings feature precision ball guides and tapered seats. Precise machining and molding of parts limit valve ball travel, ensuring that balls fully seat and seal with every stroke. This superior check valve design guarantees fast priming and reliable performance.
- High Compression Ratio The compression ratio of a metering pump is important because it affects the pump’s ability to prime and vent. The compression ratio is raised when you reduce the dead volume of the pump head during operation. All E-Series pumps feature a very high compression ratio that ensures proper feed especially with off-gassing products (i.e. Sodium Hypochlorite).
Specifications and Applications of the Walchem EZB11D1-PC Metering Pump
Now shipping as the EWP-045BPC07N-USL — the direct, factory-authorized replacement for the EZB11D1-PC.
The Walchem EZB11D1-PC Metering Pump is a compact, high-performance dosing pump designed for accuracy, reliability, and ease of use. This model has been upgraded by the manufacturer to the EWP-045BPC07N-USL, now delivering a maximum output of 0.7 gallons per hour (GPH) at up to 150 PSI, making this a chemical metering pump designed for precision in water treatment, cooling tower, and industrial process systems.
The Walchem EZB11D1-PC lineage ensures excellent chemical compatibility and long-lasting corrosion resistance. Its GFRPP (glass-filled polypropylene) construction makes it ideal for dosing a broad range of treatment chemicals — including more aggressive chemistries than standard PVC wet ends can handle — even in demanding environments.
Powered by a universal 100–240V single-phase supply (upgraded from the original fixed 115V), this Walchem metering pump provides stable and efficient operation with low power consumption, perfect for both commercial and light industrial setups. Its mechanically actuated diaphragm ensures leak-free dosing and minimal maintenance, offering dependable performance for continuous or intermittent operation.
Operators can fine-tune performance with adjustable stroke length and frequency controls via two simple physical dials, now supported by an 1800:1 turndown ratio — a major precision upgrade from the original 360:1 — allowing for even more precise chemical feed tailored to system requirements. Combined with its durable thermoplastic construction, IP66-rated housing, and compact wall-mountable design, the EWP-045BPC07N-USL is both easy to install and built to last.
Whether used in boiler feed systems, cooling tower treatment, or industrial water conditioning, the Walchem EZB11D1-PC Metering Pump — now the EWP-045BPC07N-USL — delivers the accuracy, safety, and durability that maintenance professionals and engineers rely on for consistent chemical dosing performance.
Already have an EZB11D1-PC installed? Your existing spare parts kit (diaphragm, check valves) remains fully compatible with the new model — no need to requalify maintenance stock.
Use Cases & Industry Applications
- Water Treatment Systems — The Walchem EZB11D1-PC (EWP-045BPC07N-USL) provides precise and consistent chemical dosing for pH control, disinfection, and corrosion prevention, ensuring optimal water quality in treatment plants.
- Cooling Towers — Perfect for chemical feed in cooling tower bypass systems, this Walchem metering pump helps prevent scale buildup, biofilm growth, and corrosion, keeping system efficiency high.
- Boilers & Closed-Loop Systems — The EZB11D1-PC 0.7 GPH 150 PSI pump maintains accurate chemical feed for boiler water conditioning, protecting against scaling and extending equipment life.
- Industrial Process Applications — Ideal for controlled dosing of acids, alkalis, and other process chemicals, this Walchem dosing pump supports manufacturing operations that require reliable and repeatable metering.
- Commercial & Institutional Facilities — From HVAC systems to building water management, the Walchem EZB11D1-PC ensures safe, efficient chemical dosing for smooth, long-term system performance.
No replacement parts listed for this item yet.
FAQs
Q1. What is the Walchem EZB11D1-PC used for?
The Walchem EZB11D1-PC metering pump is designed for precise chemical dosing in water treatment, cooling tower, and boiler systems, ensuring accurate control for disinfection, pH balance, and corrosion prevention. This model now ships as the EWP-045BPC07N-USL, its direct factory replacement, with the same applications and GFRPP construction.
Q2. Has the Walchem EZB11D1-PC been discontinued?
Yes. The EZB11D1-PC has been replaced by the manufacturer with the EWP-045BPC07N-USL, a confirmed 1:1 equivalent per Walchem/Iwaki’s official crossover matrix. All orders for the EZB11D1-PC now ship as this upgraded model, with the same GFRPP wet end and fully compatible spare parts.
Q3. What is the flow rate and pressure capacity of this pump?
This Walchem EZB pump lineage now delivers up to 0.7 gallons per hour (GPH) at a maximum pressure of 150 PSI (upgraded from the original 0.6 GPH / 150 PSI rating), providing steady, reliable metering performance for demanding industrial and commercial applications.
Q4. Can this pump handle corrosive or aggressive chemicals?
Yes. With a GFRPP pump head and ceramic valve components, the EZB11D1-PC / EWP-045BPC07N-USL offers excellent chemical compatibility and resistance, making it suitable for handling a broad range of mild to aggressive chemicals — including chemistries beyond what standard PVC wet ends can tolerate.
Q5. Is the Walchem EZB11D1-PC suitable for continuous operation?
Yes. Built for durability, this Walchem dosing pump supports continuous duty cycles and now includes an improved 1800:1 turndown ratio for finer, more consistent chemical feed in critical systems.
Q6. What are the power requirements for the Walchem EZB11D1-PC?
The updated EWP-045BPC07N-USL operates on a universal 100–240V single-phase power supply (upgraded from the original fixed 115V), making it even easier to integrate into standard industrial, commercial, and water treatment setups worldwide.
Q7. Will my existing EZB11D1-PC spare parts still work?
Yes. The spare parts kit (N11PC-PK) is identical between the EZB11D1-PC and the new EWP-045BPC07N-USL — no need to requalify your maintenance stock.
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