{"product_id":"parker-b521bb549c-stacking-solenoid-valve-4-way-24vdc","title":"Parker B521BB549C Stacking Solenoid Valve 4-way 24VDC","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARKER B521BB549C is a 4-way, 2-position stacking solenoid valve designed for directional control in pneumatic systems. It uses a double solenoid actuator with solenoid return, providing positive control in both directions without relying on a spring to reset the spool. The valve carries a Cv rating of 1.4 and operates on 24 volts DC, with a maximum working pressure of 145 psi. At 0.8 pounds, it is compact enough for panel or manifold mounting. NEMA 4 enclosure classification makes it suitable for wet or wash-down environments. Licensed HVAC, automation, or industrial technicians typically specify this valve in compressed-air control circuits.\u003c\/p\u003e\u003cp\u003eThis valve is suited for directional control applications in light industrial and commercial pneumatic systems. The 4-way body-ported design allows it to direct airflow to actuators, cylinders, or other pneumatic components through 1\/4-inch inlet and 1\/4-inch outlet ports. The stacking configuration allows multiple valves to be assembled in manifold banks, reducing plumbing complexity in multi-circuit systems. Operating temperature range spans from 5 degrees F to 120 degrees F, covering most indoor industrial environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble solenoid actuation with solenoid return for positive two-directional control\u003c\/li\u003e\n\u003cli\u003e4-way, 2-position body-ported valve design for directional pneumatic control\u003c\/li\u003e\n\u003cli\u003e1.4 Cv flow rating supports moderate-flow pneumatic circuit requirements\u003c\/li\u003e\n\u003cli\u003e24 VDC coil voltage for integration with standard low-voltage control systems\u003c\/li\u003e\n\u003cli\u003eNEMA 4 rated enclosure for use in wet or wash-down locations\u003c\/li\u003e\n\u003cli\u003eStacking design enables compact manifold assembly for multi-circuit installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a stacking-style directional control valve compatible with 4-way pneumatic manifold systems using 1\/4-inch ported body connections and 24 VDC control voltage.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician familiar with pneumatic directional control systems and applicable codes. De-energize the control circuit and bleed system pressure before removing or installing the valve. Verify that supply voltage matches the 24 VDC coil rating before energizing. Confirm port orientation and manifold sealing surfaces are clean and undamaged before assembly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type\u003c\/strong\u003e: 4-Way Body Ported\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Double Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn Type\u003c\/strong\u003e: Solenoid Return\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Positions\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCv Rating\u003c\/strong\u003e: 1.4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 24 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 145 psi (10 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: 5 degrees F (-15 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 120 degrees F (49 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEMA Classification\u003c\/strong\u003e: NEMA 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 7.51 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: B521BB549C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51541270397234,"sku":"B521BB549C","price":415.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5bc588d36c3d4c12a4b38928a79c97cf.jpg?v=1785871191","url":"https:\/\/voomisupply.com\/products\/parker-b521bb549c-stacking-solenoid-valve-4-way-24vdc","provider":"Voomi Supply","version":"1.0","type":"link"}