Overview
The Milwaukee Valve CW223E is a cast iron butterfly valve engineered for dependable flow control in industrial and commercial piping systems. This 6-inch wafer-style valve combines Milwaukee’s 100+ years of manufacturing expertise with a rugged, low-maintenance design suitable for water, oil, gas, and chemical distribution applications. The CW223E features aluminum-bronze disc construction, EPDM seals, and bubble-tight shut-off performance that meets ABS (American Bureau of Shipping) approval and United States Coast Guard regulations for marine service.
Key Features
- Bubble-Tight Shut-Off: EPDM-lined disc provides reliable sealing with minimal leakage
- Cast Iron Construction: ASTM A126 Class B body offers durability and corrosion resistance for long service life
- Aluminum-Bronze Disc: Superior corrosion resistance and reduced wear compared to standard alloys
- 200 PSI Non-Shock Rating: Suitable for low-to-medium pressure applications in dead-end service
- Manual Lever Handle: Epoxy-coated ductile-iron handle for easy manual operation; adaptable for pneumatic or electric actuators
- ABS and USCG Approved: Meets Type A marine service requirements and Title 46 federal regulations
- Blow-Out Proof Stem: Reinforced 416 stainless steel stem with safety features for demanding applications
Technical Specifications
| Model | CW223E-6 (6-inch) |
| Valve Type | Butterfly, Wafer Style |
| Size | 6 inch (nominal) |
| Body Material | Cast Iron (ASTM A126 Class B) |
| Disc Material | Aluminum Bronze (ASTM B148) |
| Seal/Liner Material | EPDM Rubber |
| Stem Material | 416 Stainless Steel (blow-out proof) |
| Pressure Rating | 200 psi non-shock, bi-directional dead-end service |
| Operating Temperature Range | −30 to 250°F |
| Connection Type | Wafer Style (lug-type bolting) |
| Actuator | Lever Handle (Manual); compatible with pneumatic or electric actuators |
| Unit Weight | 19.94 lbs |
| Dimensions (L×W×H) | 2.19 × 9.5 × 14.69 inches |
| Certifications | ABS, USCG Type A Service, MSS SP-67, API 609, ISO 9001:2015, ISO 14001:2015 |
| Low-Lead Compliant | Yes (Ultra Pureâ„¢ option available) |
Typical Applications
- Water treatment and distribution systems
- Industrial plumbing and commercial HVAC systems
- Agricultural and turf irrigation
- Fire protection systems
- Oil, gas, and chemical handling pipelines
- Pulp and paper industry fluid control
- Wastewater treatment plant operations
- Food and beverage processing
- Marine and shipboard piping (USCG approved)
Compatibility & Replacements
Compatible With
- Standard ANSI flange bolt patterns (6-inch wafer connection)
- Pneumatic and electric actuators (field installable)
- Low-pressure water systems (potable and non-potable)
- Industrial fluid transport networks (oils, gases, chemicals)
- Piping systems rated for 200 psi or lower
- Systems requiring ABS or USCG marine approval
Replaces / Drop-In Replacement For
- Milwaukee Valve CW223E in other size configurations (standardized wafer body)
- Equivalent 6-inch cast iron butterfly valves from competitors (verify specific flange patterns before ordering)
- Earlier Milwaukee Valve butterfly valve models within the C and W series (consult technical documentation for exact cross-reference)
Works With
- ANSI B16.1 and B16.10 flanged connection standards
- Pneumatic and electric valve actuators (Milwaukee and third-party compatible models)
- Control systems and PLCs for automated flow management
- Pressure and temperature monitoring instrumentation
- Low-pressure water and fluid distribution protocols
