Global Valves - BELIMO - #5

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ENG-93001-93621-08.04-1M • Printed in Switzerland • ZSD • Subject to technical modifications BC 5 General information - globe valves Component parts of the globe valve: H5..B (top) and H7..N (bottom) Component parts of the globe valve: H6..S Design of Belimo H... globe valves H4..B, H5..B, H6..N and H7..N series The closing point of the globe valves in the Belimo H4..B, H5..B, H6..N and H7..N series is in the UP position. The valve stem is fully extended from the valve fitting. The flow rate through the control path is 0% (bypass path with 3-way valve: 100%). In the schematic diagram, the valve cone is pointing upwards and is shaped like a Ä. H6..S series The closing point of the globe valves in the Belimo H6..S series is in the DOWN position. The stem is fully retracted into the valve fitting. The flow rate through the control path is 0%. In the schematic diagram, the valve cone is pointing downwards and is shaped like a �Þ. Type Valve Valve closing point Closing point setting of linear actuator Schematic diagram of valve H4..B H6..N Up Ä A AB H5..B H7..N Up Ä A B AB H6..S Down �Þ A AB EPDM O-ring Valve stem Valve seat, control path (A–AB) Valve cone Throttling valve with threaded ends Valve seat, bypass path (B–AB) Throttling valve with flanged ends EPDM O-ring Valve stem Valve seat, control path (A–AB) Valve cone Valve seat, bypass path (B–AB) Throttling valve with flanged ends PTFE V-ring Valve stem Valve seat, control path (A–AB) Valve cone Throttling valves and mixing valves Belimo globe valves have been designed for a long service life in closed-loop circuits carrying cold, warm or hot water (due to its stainless steel valve seat/valve cone, the H6..S is suitable for duty in hot water circuits and steam applications). The capacity range from 1 kW to 3 MW is completely covered by DN 15 to DN 150. Throttling and mixing versions of the valves are available with either external thread or flanged ends. The design of Belimo globe valves has been greatly improved in several important ways. Various optimized features have been incorporated with the aim of increasing their service life and reducing maintenance costs. The valves are always supplied as a turnkey functional solution, i.e. together with a suitable linear actuator. There are several alternative actuator types offering different actuating force ratings and emergency control functions. PTFE V-ring (H7..N only DN 125/150)