Overview
The Woodward 8901-457 CPC (Current-to-Pressure Converter) Valve is a flagship model in Woodward’s CPC series, designed to deliver linear, repeatable hydraulic control in harsh environments. It transforms standard 4–20 mA control signals into 0–25 bar hydraulic pressure, enabling accurate positioning of single-acting actuators and servo systems.
Its 316L stainless steel valve body and IP65-rated die-cast aluminum housing ensure corrosion resistance and durability in offshore platforms, ship engine rooms, and chemical plants. The CPC valve features LED indicators, Modbus interface, and single-port diagnostics, simplifying integration and maintenance.
The 8901-457 is compatible with Woodward control systems such as 505, 505E, and MicroNet, and supports hot-swap replacement without system shutdown. Its fast response time (<10 ms) and repeatability (±0.5% FS) make it ideal for critical control loops in rotating machinery.
Technical Data
| Parameter | Specification |
|---|---|
| Model Number | 8901-457 |
| Product Type | Marine CPC Valve |
| Temperature Range | -30°C to +85°C |
| Repeatability | ±0.5% FS |
| Weight | 1.55 kg |
Typical Applications
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Marine Propulsion and Engine Control: Regulates fuel valves, turbochargers, and exhaust dampers in ship engines.
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Gas and Steam Turbine Systems: Drives actuator positioning in turbine governor loops.
-
Compressor and Pump Control: Enables precise modulation of inlet guide vanes and bypass valves.
-
Offshore and Chemical Plants: Operates reliably in hazardous zones with ATEX-certified protection.
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Power Generation Facilities: Supports emergency shutdown and load balancing systems in addition to standard control.
FAQ
Q1: What control signal does the 8901-457 CPC Valve accept?
A1: It accepts standard 4–20 mA analog signals.
Q2: Can it be used in hazardous environments?
A2: Yes, it is certified for ATEX Zone 2 and IECEx applications.
Q3: Is hot-swap replacement supported?
A3: Yes, the valve can be replaced online without shutting down the system.
Q4: What systems is it compatible with?
A4: It integrates with Woodward 505, 505E, and MicroNet control platforms.
Q5: What maintenance is recommended?
A5: Annual step-response testing and biannual oil cleanliness checks are advised for optimal performance.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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