{"id":2205,"date":"2023-11-01T03:32:55","date_gmt":"2023-11-01T03:32:55","guid":{"rendered":"https:\/\/hydraulic-cylinders.net\/?post_type=product&p=2205"},"modified":"2023-11-01T03:53:47","modified_gmt":"2023-11-01T03:53:47","slug":"4wrz-he-series-pilot-operated-proportional-directional-hydraulic-valve","status":"publish","type":"product","link":"https:\/\/www.hydraulic-cylinders.net\/el\/product\/4wrz-he-series-pilot-operated-proportional-directional-hydraulic-valve\/","title":{"rendered":"\u03a3\u03b5\u03b9\u03c1\u03ac 4WRZ\/H(E) \u0391\u03bd\u03b1\u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03b9\u03ba\u03ae \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae \u03b2\u03b1\u03bb\u03b2\u03af\u03b4\u03b1 \u03bc\u03b5 \u03c0\u03b9\u03bb\u03cc\u03c4\u03bf"},"content":{"rendered":"

\u03a3\u03b5\u03b9\u03c1\u03ac 4WRZ\/H(E) \u0391\u03bd\u03b1\u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03b9\u03ba\u03ae \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae \u03b2\u03b1\u03bb\u03b2\u03af\u03b4\u03b1 \u03bc\u03b5 \u03c0\u03b9\u03bb\u03cc\u03c4\u03bf<\/strong><\/h1>\n

\"\"<\/p>\n

The 4WRZ\/H(E) series pilot-operated proportional directional hydraulic valve is a state-of-the-art component designed to provide exceptional precision, control, and efficiency in hydraulic systems. With its advanced pilot-operated proportional control technology, this valve enables accurate flow regulation and seamless directional changes.<\/p>\n

The 4WRZ\/H(E) series pilot-operated proportional directional hydraulic valve empowers hydraulic systems with precise flow control, versatile directional changes, and energy efficiency. Its pilot-operated proportional control technology ensures accurate and responsive flow adjustment, while the high flow capacity guarantees reliable performance even in demanding applications. By following the recommended usage methods and maintenance guidelines, you can maximize the benefits and longevity of the 4WRZ\/H(E) series valve, elevating your hydraulic system to new levels of precision and control. Upgrade your hydraulic setup today and experience the power of the 4WRZ\/H(E) series pilot-operated proportional directional hydraulic valve.<\/p>\n

4WRZ\/H(E) Series Pilot Operated Proportional Directional Hydraulic Valve Key Characteristics:<\/p>\n

    \n
  1. Pilot-Operated Proportional Control<\/li>\n<\/ol>\n
      \n
    • The 4WRZ\/H(E) series valve utilizes pilot-operated proportional control technology, allowing precise and proportional flow adjustment based on control signals.<\/li>\n
    • \u0391\u03c5\u03c4\u03ae \u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03b9 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03bf \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf, \u03bc\u03b5 \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2, \u03bc\u03b5\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b7 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1.<\/li>\n<\/ul>\n
        \n
      1. Versatile Directional Control<\/li>\n<\/ol>\n
          \n
        • \u0391\u03c5\u03c4\u03ae \u03b7 \u03b2\u03b1\u03bb\u03b2\u03af\u03b4\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03b5\u03c5\u03ad\u03bb\u03b9\u03ba\u03c4\u03bf \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03c5\u03b3\u03c1\u03bf\u03cd, \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03b3\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03b5\u03c5\u03c1\u03cd \u03c6\u03ac\u03c3\u03bc\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd.<\/li>\n
        • \u0395\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03c1\u03cc\u03c3\u03ba\u03bf\u03c0\u03c4\u03b7 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03b5\u03be\u03b1\u03c1\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03cc\u03c0\u03c9\u03c2 \u03ba\u03c5\u03bb\u03af\u03bd\u03b4\u03c1\u03bf\u03c5\u03c2, \u03ba\u03b9\u03bd\u03b7\u03c4\u03ae\u03c1\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b5\u03c1\u03b3\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03ad\u03c2 \u03c3\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2, \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03b5\u03c5\u03b5\u03bb\u03b9\u03be\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n<\/ul>\n
            \n
          1. High Flow Capacity<\/li>\n<\/ol>\n
              \n
            • The 4WRZ\/H(E) series valve is engineered to handle high flow rates, making it ideal for applications that require substantial hydraulic power.<\/li>\n
            • \u0397 \u03c3\u03c4\u03b9\u03b2\u03b1\u03c1\u03ae \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03c4\u03bf\u03c5 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03cc \u03b1\u03c0\u03b1\u03b9\u03c4\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c1\u03bf\u03ae\u03c2.<\/li>\n<\/ul>\n
                \n
              1. \u0395\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7<\/li>\n<\/ol>\n
                  \n
                • By incorporating pilot-operated proportional control, this valve minimizes pressure drops and optimizes energy usage.<\/li>\n
                • \u0392\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2, \u03bc\u03b5 \u03b1\u03c0\u03bf\u03c4\u03ad\u03bb\u03b5\u03c3\u03bc\u03b1 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03cc\u03bc\u03b7\u03c3\u03b7 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ac \u03bf\u03c6\u03ad\u03bb\u03b7.<\/li>\n<\/ul>\n

                  4WRZ\/H(E) Series Pilot Operated Proportional Directional Hydraulic Valve Parameter:<\/strong><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                  GeneraL<\/strong><\/td>\n<\/tr>\n
                  Valve type<\/td>\nWRZ<\/td>\nWRZE<\/td>\n<\/tr>\n
                  \u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7<\/td>\nOptional,preferably horizontal<\/td>\n<\/tr>\n
                  Storage temperature range<\/td>\n\u2103<\/td>\n-20 \u03ad\u03c9\u03c2 +80<\/td>\n<\/tr>\n
                  \u0395\u03cd\u03c1\u03bf\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03bf\u03c2<\/td>\n\u2103<\/td>\n-20 \u03ad\u03c9\u03c2 +70<\/td>\n-20 \u03ad\u03c9\u03c2 +50<\/td>\n<\/tr>\n
                  \u0392\u03ac\u03c1\u03bf\u03c2<\/td>\nNS 10<\/td>\n\u03ba\u03b9\u03bb\u03ac<\/td>\n7.8<\/td>\n8<\/td>\n<\/tr>\n
                  NS 16<\/td>\n\u03ba\u03b9\u03bb\u03ac<\/td>\n13.4<\/td>\n13.6<\/td>\n<\/tr>\n
                  NS 25<\/td>\n\u03ba\u03b9\u03bb\u03ac<\/td>\n18.2<\/td>\n18.4<\/td>\n<\/tr>\n
                  NS 32<\/td>\n\u03ba\u03b9\u03bb\u03ac<\/td>\n42.2<\/td>\n42.4<\/td>\n<\/tr>\n
                  \u03a5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03cc\u03c2\u00a0<\/strong>\u00a0\u00a0 (measured with HLPAG.p=100bar : 40 \u2103 \u00b1 5 \u2103)<\/td>\n<\/tr>\n
                  \u039c\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2<\/td>\n10<\/td>\n16<\/td>\n25<\/td>\n32<\/td>\n<\/tr>\n
                  \u03a0\u03af\u03b5\u03c3\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2<\/td>\nPilot valve<\/td>\nExternal pilot oil supply<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\n30 to 100 bar<\/td>\n<\/tr>\n
                  Internal pilot oil supply<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\n100 to 350 with “D3” only<\/td>\n<\/tr>\n
                  Main valve<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\nto 315<\/td>\n\u03c3\u03b5 350<\/td>\n\u03c3\u03b5 350<\/td>\n\u03c3\u03b5 350<\/td>\n<\/tr>\n
                  Return pressure<\/td>\nPort \u00a0T (Port R) (external pilot oil drain))<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\nto 315<\/td>\nto 250<\/td>\nto 250<\/td>\n\u03ad\u03c9\u03c2 150<\/td>\n<\/tr>\n
                  Port \u00a0T (internal pilot oil drain)<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\nto 30<\/td>\nto 30<\/td>\nto 30<\/td>\nto 30<\/td>\n<\/tr>\n
                  \u00a0\u039b\u03b9\u03bc\u03ac\u03bd\u03b9 \u03a5<\/td>\n\u03bc\u03c0\u03b1\u03c1<\/td>\nto 30<\/td>\nto 30<\/td>\nto 30<\/td>\nto 30<\/td>\n<\/tr>\n
                  Pilot oil volume input signal 0- 100 %<\/td>\ncm3<\/sup><\/td>\n1.7<\/td>\n4.6<\/td>\n10<\/td>\n26.5<\/td>\n<\/tr>\n
                  Pilot oil flow in port X and Y with a stepped input signal 0- 100 %<\/td>\n3.5<\/td>\n5.5<\/td>\n7<\/td>\n15.9<\/td>\n<\/tr>\n
                  Flow of the main valve<\/td>\n\u039b\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/td>\nto 170<\/td>\nto 460<\/td>\n\u00a0 to 870<\/td>\nto 1600<\/td>\n<\/tr>\n
                  Hydraulic fluid<\/td>\n\u039b\/\u03bb\u03b5\u03c0\u03c4\u03cc<\/td>\nMineral oil (HL, HLP) to DIN 51524 Further fluids on enquiry<\/td>\n<\/tr>\n
                  Hydraulic fluid temperature range<\/td>\n\u2103<\/td>\n-20 \u00a0to +80(preferably +40 to +50)<\/td>\n<\/tr>\n
                  \u0395\u03cd\u03c1\u03bf\u03c2 \u03b9\u03be\u03ce\u03b4\u03bf\u03c5\u03c2<\/td>\n\u03c7\u03b9\u03bb.2<\/sup>\/\u03bc\u03b9\u03ba\u03c1\u03cc<\/td>\n20 \u00a0to 380(preferably 30 to 46)<\/td>\n<\/tr>\n
                  \u0392\u03b1\u03b8\u03bc\u03cc\u03c2 \u03bc\u03cc\u03bb\u03c5\u03bd\u03c3\u03b7\u03c2<\/td>\nMaximum permissible degree of contamination of the pressure fluid is to NAS 1638 or ISO 4406(c)<\/td>\nA filter with a minimum retention rate of \u03b2x \u2265 75 is recommended<\/td>\n<\/tr>\n
                  Pilot valve<\/td>\n\u00a0NAS 1638 class 7<\/td>\nx=5<\/td>\n<\/tr>\n
                  Main valve<\/td>\n\u00a0NAS 1638 class 9<\/td>\nx=15<\/td>\n<\/tr>\n
                  \u03a5\u03c3\u03c4\u03ad\u03c1\u03b7\u03c3\u03b7<\/td>\n%<\/td>\n\u22646<\/td>\n<\/tr>\n
                  Electrical<\/strong><\/td>\n<\/tr>\n
                  Valve type<\/td>\nWRZ<\/td>\nWRZE<\/td>\n<\/tr>\n
                  Type of protection of the valve to EN 60529<\/td>\nIP65 with cable socket mounted and locked<\/td>\n<\/tr>\n
                  \u03a4\u03cd\u03c0\u03bf\u03c2 \u03c4\u03ac\u03c3\u03b7\u03c2<\/td>\n\u039f\u03c5\u03ac\u03c3\u03b9\u03bd\u03b3\u03ba\u03c4\u03bf\u03bd<\/td>\n<\/tr>\n
                  Command value overlap<\/td>\n%<\/td>\n15<\/td>\n<\/tr>\n
                  Max. current<\/td>\n\u0395\u039d\u0391<\/td>\n1.5<\/td>\n2.5<\/td>\n<\/tr>\n
                  Solenoid coil resisance<\/td>\nCold value at 20\u2103<\/td>\n\u03a9<\/td>\n4.8<\/td>\n2<\/td>\n<\/tr>\n
                  \u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c4\u03b9\u03bc\u03ae \u03b8\u03ad\u03c1\u03bc\u03b1\u03bd\u03c3\u03b7\u03c2<\/td>\n\u03a9<\/td>\n7.2<\/td>\n3<\/td>\n<\/tr>\n
                  Cyclic duration factor<\/td>\n%<\/td>\n100<\/td>\n<\/tr>\n
                  \u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c0\u03b7\u03bd\u03af\u03bf\u03c5<\/td>\n\u2103<\/td>\n\u03ad\u03c9\u03c2 150<\/td>\n<\/tr>\n
                  \u03a0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03b2\u03b1\u03bb\u03b2\u03af\u03b4\u03b1\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf EN 60529<\/td>\nIP65<\/td>\n<\/tr>\n
                  Control electronics<\/strong><\/td>\n<\/tr>\n
                  External amplifier for type WRZ<\/td>\nVT- VSPA2-L2X\/…<\/td>\n<\/tr>\n
                  \u03a3\u03ae\u03bc\u03b1 \u03c4\u03b9\u03bc\u03ae\u03c2 \u03b5\u03bd\u03c4\u03bf\u03bb\u03ae\u03c2<\/td>\n-Voltage input “A1”<\/td>\nV<\/td>\n\u00b110<\/td>\n<\/tr>\n
                  –Current input “F1”<\/td>\nmA<\/td>\n4 to 20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  4WRZ\/H(E) Series Pilot Operated Proportional Directional Hydraulic Valve Advantages:<\/strong><\/h2>\n

                  \u2022 Pilot-operated two-stage proportional directional valve, used to control the size and direction of the liquid flow
                  \n\u2022 Threaded connection type proportional solenoid, the coil can be disassembled separately
                  \n\u2022 Sub-plate mounting connection structure, connection size conforms to DIN2430 and ISO4401 standards
                  \n\u2022 \u0395\u03c5\u03b8\u03c5\u03b3\u03c1\u03ac\u03bc\u03bc\u03b9\u03c3\u03b7 \u03b5\u03bb\u03b1\u03c4\u03b7\u03c1\u03af\u03bf\u03c5 \u03ba\u03b1\u03c1\u03bf\u03c5\u03bb\u03b9\u03bf\u03cd
                  \n\u2022 WRZE type with integrated proportional amplifierr
                  \n\u2022 WRZ type external amplifier (order separately)<\/p>\n

                  Usage Method Of 4WRZ\/H(E) Series Pilot Operated Proportional Directional Hydraulic Valve<\/strong>:<\/strong><\/h2>\n
                    \n
                  1. System Evaluation<\/strong><\/li>\n<\/ol>\n
                      \n
                    • \u0391\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03cc \u03c3\u03b1\u03c2 \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03c1\u03bf\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7\u03c2.<\/li>\n
                    • Determine if the 4WRZ\/H(E) series valve is suitable based on its flow capacity, pressure rating, and compatibility with your system.<\/li>\n<\/ul>\n
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                      1. Valve Selection<\/strong><\/li>\n<\/ol>\n
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                        • Select the appropriate variant of the 4WRZ\/H(E) series valve based on your system parameters, flow requirements, and directional control needs.<\/li>\n
                        • \u039b\u03ac\u03b2\u03b5\u03c4\u03b5 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03b7 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae, \u03b7 \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03af\u03b5\u03c3\u03b7, \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2.<\/li>\n<\/ul>\n
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                          1. \u0395\u03b3\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7<\/strong><\/li>\n<\/ol>\n