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  • Location, Driving directions - EPC - Varibell.com
    Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring tear drop shaped apertures machined into both

    Original URL path: http://www.epc.at/en/epc-e/location-driving-directions (2015-12-02)
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  • Varibell - EPC - Varibell.com
    tear drop apertures giving fine flow adjustment with a 2 stage pressure reduction across both seats As the plug further rotated the profiled apertures gradually become circular permitted an increasing flow At full capacity the apertures are circular over the whole pipe diameter and the flow is unrestricted The bell shaped plug with a slope angle outside the interlock is being pressed into the valve seat by means of the spring force in the bottom cover During rotation the seat simultaneously acts as a friction bearing absorbing the friction forces over a wide surface area and centering the control element under the action of the spring High turndown ratio of up to 1 10 000 Virtually zero pressure drop in the fully open position Highest KV ratings approx 4 times the value in comparison to conventional globe control valves General Information We offer valves according to the current DIN EN but also to ASA ASME standards in a wide range of sizes and pressure ratings As a rule our flange connections are built according to DIN EN 1092 1 Form C with sealing surfaces according to DIN EN 1092 1 Form B1 The pressure ratings comprise the range from PN 16 to PN 400 ANSI executions are built in accordance with ASME B16 5 The range is from Class 150 to Class 2500 On request valves can also be built e g with weld on ends or in accordance with internal factory standards Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter

    Original URL path: http://www.epc.at/en/varibell-e (2015-12-02)
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  • General info - EPC - Varibell.com
    two tear drop apertures giving fine flow adjustment with a 2 stage pressure reduction across both seats As the plug further rotated the profiled apertures gradually become circular permitted an increasing flow At full capacity the apertures are circular over the whole pipe diameter and the flow is unrestricted The bell shaped plug with a slope angle outside the interlock is being pressed into the valve seat by means of the spring force in the bottom cover During rotation the seat simultaneously acts as a friction bearing absorbing the friction forces over a wide surface area and centering the control element under the action of the spring High turndown ratio of up to 1 10 000 Virtually zero pressure drop in the fully open position Highest KV ratings approx 4 times the value in comparison to conventional globe control valves General Information We offer valves according to the current DIN EN but also to ASA ASME standards in a wide range of sizes and pressure ratings As a rule our flange connections are built according to DIN EN 1092 1 Form C with sealing surfaces according to DIN EN 1092 1 Form B1 The pressure ratings comprise the range from PN 16 to PN 400 ANSI executions are built in accordance with ASME B16 5 The range is from Class 150 to Class 2500 On request valves can also be built e g with weld on ends or in accordance with internal factory standards Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary

    Original URL path: http://www.epc.at/en/varibell-e/general-info (2015-12-02)
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  • Assembly and parts - EPC - Varibell.com
    Seat Control Bell Cover Flange These parts are merely plugged and can be replaced within a few minutes Nothing has to be adjusted during or after assembly everything adjusts itself Actuator and positioner remain in place In multifunctional facilities the control bell can be exchanged against another with a completely different KV range within a few minutes Varibell 3D Animation Download Link size 50MB File Download Varibell assembly spare parts and wearing parts Varibell has a very simple construction A revision can be performed directly in each respective repair shop of the customer Spare parts and wearing parts can be changed in many cases without having to remove the valve from the pipeline Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring tear drop shaped apertures machined into both inlet and outlet but laterally reversed During opening this plug rotates and

    Original URL path: http://www.epc.at/en/varibell-e/assembly-and-parts (2015-12-02)
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  • Implementations - EPC - Varibell.com
    forged from a round bar the so called block valves All our casted bodies are available in rust free acid proof stainless steel or material of higher value Our standard materials are 1 4581 and 1 4408 CF8M for casted models and 1 4571 for block valves Block valves can also be made of any kind of material which is available as a rod material So complete valves made of special materials such as Hastelloy Monel Alloy 59 etc can be produced within the shortest time Another feature that distinguishes the block valves from their casted counterparts is the execution of their intermediate flange yielding a compact construction The currently available nominal sizes and pressure ratings are shown in the respective tables DIN ANSI Varibell with block body Varibell with casted body Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring

    Original URL path: http://www.epc.at/en/varibell-e/implementations (2015-12-02)
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  • The adjustment element - EPC - Varibell.com
    a Full Bell Typ VG This is the standard design Most of the Varibell control valves are equipped with this bell In this case the movement of the bell is comparable to a spherical valve The pressure drop is effected in two steps Inlet and outlet have the same shape Equivalent flow in both directions is possible b Special Control Bells For specific applicatons especially adapted control bells are available By very fine machining of control groove in connection with 2 stage pressure reduction smallest KV values of 0 0001 can be controlled with an excellent resolution For example single stage control bell for Gas solid application Bell of Siliciumcarbid SiSiC Control bell with two extremely different control ranges Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring tear drop shaped apertures machined into both inlet and outlet but laterally reversed

    Original URL path: http://www.epc.at/en/varibell-e/the-adjustment-element (2015-12-02)
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  • Control valve seats - EPC - Varibell.com
    Valve Seats For most applications and up to a temperature of 200 C we use PTFE virgin PTFE Glassfiber PTFE Graphite For higher temperatures and or pressures we can also use other high performance plastics such as PEEK PVX Sintimide Those materials allow permanent temperatures of more than 250 C and for short time use temperatures of up to 300 C Chemical stability has to be checked in every case For abrasive media and or higher temperatures hardened metal seats are used A special procedure known as kolsterising is used in order to abtain the chemical characteristics of the perforated disc Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring tear drop shaped apertures machined into both inlet and outlet but laterally reversed During opening this plug rotates and simultaneously uncovers the two tear drop apertures giving fine flow adjustment with

    Original URL path: http://www.epc.at/en/varibell-e/control-valve-seats (2015-12-02)
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  • Cv values - EPC - Varibell.com
    KV values and comparison with conventional globe type control valves The graph shows how Varibell in the size 1 2 1 1 1 2 2 3 4 and 6 can cover all flow ranges for which conventional valves would require size ranges 1 2 to 10 diameter This is possible due to the extremely high turndown ratio of 1 10 000 KVS Values Varibell DN 150 KVS 1700 Varibell DN 100 KVS 700 Varibell DN 80 KVS 445 Varibell DN 50 KVS 185 Varibell DN 40 KVS 140 Varibell DN 25 KVS 33 Varibell DN 15 KVS 13 Varibell DN 15VE KVS 5 Overview Home EPC About us Contact Location Driving directions Varibell General info Assembly and parts Implementations The adjustment element Control valve seats Cv values High Resolution Actuators Delivery programm General info Actuators Accessories Level Measurement Technology Download Support Main dimensions DIN ANSI CAD Certificates Operating instructions Assembly drawing Get Offer Why Varibell Varibell is a rotary quarter turn valve The regulating element is a bell shaped plug featuring tear drop shaped apertures machined into both inlet and outlet but laterally reversed During opening this plug rotates and simultaneously uncovers the two tear drop apertures giving fine flow

    Original URL path: http://www.epc.at/en/varibell-e/cv-values (2015-12-02)
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