WILDEN 00-9243 Air Pump Double Diaphragm 1/4

( Brand: Wilden ), ( Manufacturer Part Number: 00-9243 ), ( Part Type: Pump ), ( Diaphragm Pump Type: Double Diaphragm Pump )

Review WILDEN Model 1/4 Inch Air Operated Double Diaphragm Pump

The **Wilden 00-9243 1/4" Air Double Diaphragm Pump** is a robust, high-performance fluid transfer solution engineered for demanding industrial, laboratory, and process applications where reliability, precision, and versatility are paramount. Part of Wilden s renowned **PumpMaster** series, this compact yet durable pump is designed to handle a wide range of corrosive, abrasive, viscous, or volatile fluids with ease, making it an indispensable asset in industries such as chemical processing, pharmaceuticals, food and beverage, wastewater treatment, and automotive manufacturing. Its **1/4" NPT inlet and outlet fittings** provide flexibility for integration into existing systems, accommodating a variety of tubing and piping configurations, while the **dual-diaphragm design** ensures consistent flow rates and extended operational life by evenly distributing wear across both diaphragms, reducing the frequency of maintenance and replacement cycles. Powered by compressed air, this pump operates silently and without the need for electrical components, eliminating the risk of sparks or electrical hazards in explosive or flammable environments. The **self-priming capability** allows it to draw fluids from low points or suction lifts up to 26 feet (8 meters), while its **positive displacement mechanism** guarantees accurate metering and consistent delivery, even with slurries, pastes, or fluids containing solids up to 1/2 inch in diameter. Constructed from **high-grade stainless steel (SS316) components**, including the pump head, diaphragm, and valve seats, the 00-9243 resists corrosion from acids, alkalis, and solvents, ensuring longevity in aggressive chemical environments. The pump s **adjustable flow control** via the air regulator allows operators to fine-tune output rates from a trickle to a full flow, accommodating batch processing, precise dosing, or high-volume transfer needs. Additionally, the **quick-connect fittings** simplify assembly and disassembly, reducing downtime during maintenance or diaphragm changes, while the **sealed air inlet** prevents contamination of the internal components. With a **maximum flow rate of 1.5 GPM (5.7 LPM) at 0 PSI discharge pressure** and a **working pressure range of 0 to 100 PSI**, this pump strikes an ideal balance between efficiency and durability, making it suitable for both light-duty laboratory applications and heavy-duty industrial processes. Whether transferring hazardous chemicals, viscous resins, or abrasive slurries, the Wilden 00-9243 delivers **unmatched reliability, chemical resistance, and operational flexibility**, ensuring seamless fluid handling in even the most challenging environments.

### **Pros and Cons of buying a Wilden 00-9243 (1/4" Air Double Diaphragm Pump)**

1. **Reliability and Durability** Wilden pumps are known for their robust construction, often built to last for years with proper maintenance. The double-diaphragm design reduces wear compared to single-diaphragm models, extending the pump s lifespan.

2. **Versatility in Fluid Handling** This model is designed to handle a wide range of fluids, including corrosive, abrasive, viscous, and shear-sensitive liquids. It is commonly used in chemical processing, wastewater treatment, and industrial applications where standard pumps may fail.

3. **Self-Priming Capability** The pump can draw fluid from below its base without requiring pre-priming, making it convenient for applications where suction from a reservoir is needed.

4. **Low Maintenance Requirements** Compared to positive displacement pumps with more complex mechanisms, this air-operated model has fewer moving parts that require frequent lubrication or replacement. The diaphragms are the primary wear items, which can be replaced relatively easily.

5. **No Electrical Components** Since it is air-operated, it eliminates the risk of electrical hazards in explosive or wet environments, making it safer in certain industrial settings.

6. **Consistent Flow Rate** The air-driven mechanism provides a steady flow rate, which is useful in processes requiring precise fluid delivery.

7. **Wide Range of Applications** Suitable for transferring slurries, acids, bases, paints, adhesives, and other challenging fluids where other pumps may clog or degrade.

8. **Modular Design** Some Wilden models allow for easy replacement of diaphragms, valves, and seals, reducing downtime during maintenance.

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1. **Higher Initial Cost** Wilden pumps are generally more expensive upfront compared to basic centrifugal or gear pumps. The premium price reflects their durability and specialized design.

2. **Air Consumption** The pump requires a steady supply of compressed air, which adds operational costs if air is not already available on-site. Poor-quality or insufficient air pressure can reduce efficiency or damage the pump.

3. **Noise and Vibration** Air-operated pumps can be louder and more vibration-prone than electric pumps, which may require additional soundproofing or mounting considerations in sensitive environments.

4. **Limited Flow Rates for Small Sizes** The 1/4" model has a relatively low flow capacity (typically around 1 5 GPM, depending on the fluid and air pressure), making it unsuitable for high-volume applications. Larger sizes may be needed for heavier-duty tasks.

5. **Dependence on Air Quality** Contaminants in the compressed air (e.g., oil, moisture, or particles) can enter the pump and accelerate wear on diaphragms and seals, increasing maintenance frequency.

6. **Not Ideal for High-Pressure Applications** While capable of moderate pressures, this model is not designed for extremely high-pressure requirements. For such needs, a different pump type (e.g., triplex or quintuplex) may be necessary.

7. **Diaphragm Replacement Costs** Over time, diaphragms will wear out and need replacement, which can add to long-term operational expenses. The cost of replacement parts may vary depending on the supplier.

8. **Limited Suction Lift** Like most diaphragm pumps, it has a relatively low suction lift capability (typically under 25 feet of head). For applications requiring higher suction lifts, additional equipment (e.g., a booster pump) may be needed.

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The **Wilden 00-9243 (1/4" air double diaphragm pump)** is an excellent choice for applications requiring the transfer of abrasive, corrosive, or viscous fluids where reliability and low maintenance are critical. Its air-operated design makes it safe for hazardous environments, and its modular components reduce downtime. However, its higher cost, air dependency, and limitations in flow rate and pressure make it less suitable for high-volume or high-pressure applications.

If your application involves handling difficult fluids in a controlled environment where air is available, this pump is a strong recommendation. For applications with high flow demands or extreme pressure requirements, consider larger Wilden models or alternative pump types.

- You need a durable, low-maintenance pump for abrasive or corrosive fluids.

- Your application requires self-priming and air operation (e.g., chemical processing, wastewater treatment, or food/pharmaceutical transfer).

- You have access to compressed air and can manage its associated costs.

- You require high flow rates or extreme pressure (opt for a larger Wilden model or a different pump type).

- Your budget is constrained, as the upfront cost is higher than standard pumps.

- Air quality is inconsistent, which could lead to premature wear.

- Noise or vibration is a significant concern in your workspace.

Details:

Wilden model 00-9243 1/4 Air Operated Double Diaphragm Pump, This honestly might be new and just dusty from storage but I'm listing it as used I have no idea.

part #: 009243 price

• $149.99

specifications valvplu:

• brand: Wilden
• mpn: 00-9243
• part type: Pump
• diaphragm pump type: Double Diaphragm Pump

returns valvplu:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller valvplu:

• # reviews: 308
• rating: 100.0%
• city: Toledo, Ohio

offer valvplu:

• availability: In Stock
• sold: 0
• started: February 3, 2026
• options: Ship-to-home
• best offers: True
• quantity: 1

shipping valvplu:

• transit: 3-8 Days
• service: USPS Ground Advantage
• type: Calculated
• cost: $8.38
• carrier: USPS
• class: Standard

general valvplu:

• Pumps Pump Accessories > Vacuum Pumps > Diaphragm Pumps
• condition: Used

payments valvplu:

• wallet: Paypal
• other
• credit card: Discover

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