{"product_id":"return-water-valve-for-four-pipe-hydronic-systems","title":"Return Water Valve for Four-Pipe Hydronic Systems, Three-Way 90 Degree Elbow, 6 to 9 PSIG Spring, 4.1 Cv NC Valve and 4.7 Cv NO Valve, 5\/8 Inch Size, Pro Grade Pneumatic Actuator for Precise Heat Transfer Control","description":"\u003cdiv\u003ePrecision four-pipe return valve with pneumatic actuator\n✔️ 5\/8 in size, 6-9 PSIG spring, 4.1 Cv NC \u0026amp; 4.7 Cv NO - single unit \u003cp\u003eThis return water valve is built for four-pipe hydronic systems and three-way 90° elbows, regulating hot and cold water in small room HVAC setups. It ships with a factory-installed V-3000 exposed pneumatic actuator in a die-cast aluminum housing and supports 1\/2 and 5\/8 in. connections in the V-4440 Series for three- and four-pipe layouts.\u003c\/p\u003e ✅ 5\/8 in connection size for standard hydronic fittings\u003cbr\u003e\n✅ 6-9 PSIG spring for stable modulation\u003cbr\u003e\n✅ Cv 4.1 NC and 4.7 NO for precise flow control\u003cbr\u003e\n✅ Three-way 90-degree elbow compatibility\u003cbr\u003e\n✅ Factory-installed V-3000 actuator for accurate control\u003cbr\u003e\n✅ Die-cast aluminum housing with synthetic rubber diaphragm\u003cbr\u003e\n✅ V-4440 Series support for 1\/2 and 5\/8 in connections\u003cbr\u003e \u003cp\u003e💡 What is a return water valve used for in four-pipe heating and cooling systems?\u003c\/p\u003e\n\u003cp\u003eHandy, precise control for balancing heat transfer in HVAC loops.\u003c\/p\u003e\n- Helps regulate hot and cold water flow in three- and four-pipe setups\u003cbr\u003e\n- Operated by a factory-installed V-3000 pneumatic actuator for responsive control\u003cbr\u003e\n- Cv values 4.1 NC and 4.7 NO enable precise modulation\u003cbr\u003e\n- Ideal for small-room climate control applications\u003cbr\u003e\n✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49120442253547,"sku":"VXB00GU7VSX0","price":1614.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/vxb.com\/products\/return-water-valve-for-four-pipe-hydronic-systems","provider":"VXB Bearings","version":"1.0","type":"link"}