# Valves **URL:** https://forumautomation.com/c/field-instrumentation/valves/42.md?page=4 [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) **Page:** 5 --- ## [What is the use of a V-ball valve?](https://forumautomation.com/t/what-is-the-use-of-a-v-ball-valve/12491)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 29, 2024, 2:16pm UTC](https://forumautomation.com/t/what-is-the-use-of-a-v-ball-valve/12491 "2024-08-29T14:16:31Z")
What is the use of a V-ball valve? --- ## [What are the key considerations when selecting a cryogenic shut off valve for a specific application?](https://forumautomation.com/t/what-are-the-key-considerations-when-selecting-a-cryogenic-shut-off-valve-for-a-specific-application/12159)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [June 18, 2024, 1:50pm UTC](https://forumautomation.com/t/what-are-the-key-considerations-when-selecting-a-cryogenic-shut-off-valve-for-a-specific-application/12159 "2024-06-18T13:50:32Z")
What are the key considerations when selecting a cryogenic shut off valve for a specific application? --- ## [Problems related to steam preheat valve](https://forumautomation.com/t/problems-related-to-steam-preheat-valve/9563)
**Author:** [@instrumentationtechi](https://forumautomation.com/u/instrumentationtechi)\ **Replies:** 1\ **Last updated:** [July 5, 2021, 5:08am UTC](https://forumautomation.com/t/problems-related-to-steam-preheat-valve/9563 "2021-07-05T05:08:34Z")
Any tips for tuning/programing steam preheat valve. Have seen common issues overheatting, then closing down, then outside air tripping freeze --- ## [Turbine governor control valve to operate sluggishly, and how would you troubleshoot this issue?](https://forumautomation.com/t/turbine-governor-control-valve-to-operate-sluggishly-and-how-would-you-troubleshoot-this-issue/12324)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 1\ **Last updated:** [July 30, 2024, 4:19am UTC](https://forumautomation.com/t/turbine-governor-control-valve-to-operate-sluggishly-and-how-would-you-troubleshoot-this-issue/12324 "2024-07-30T04:19:05Z")
Turbine governor control valve to operate sluggishly, and how would you troubleshoot this issue? --- ## [Explain the advantages and potential drawbacks of using an electric actuator butterfly valve compared to a pneumatic actuator valve in fluid control systems?](https://forumautomation.com/t/explain-the-advantages-and-potential-drawbacks-of-using-an-electric-actuator-butterfly-valve-compared-to-a-pneumatic-actuator-valve-in-fluid-control-systems/12325)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 1, 2024, 5:11pm UTC](https://forumautomation.com/t/explain-the-advantages-and-potential-drawbacks-of-using-an-electric-actuator-butterfly-valve-compared-to-a-pneumatic-actuator-valve-in-fluid-control-systems/12325 "2024-08-01T17:11:30Z")
explain the advantages and potential drawbacks of using an electric actuator butterfly valve compared to a pneumatic actuator valve in fluid control systems? --- ## [What are Danfoss Solenoid Valves?](https://forumautomation.com/t/what-are-danfoss-solenoid-valves/12760)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 5, 2024, 1:44pm UTC](https://forumautomation.com/t/what-are-danfoss-solenoid-valves/12760 "2024-11-05T13:44:59Z")
What are Danfoss Solenoid Valves? --- ## [What is the common problem in a control valve?](https://forumautomation.com/t/what-is-the-common-problem-in-a-control-valve/13675)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 2\ **Last updated:** [October 20, 2026, 4:12am UTC](https://forumautomation.com/t/what-is-the-common-problem-in-a-control-valve/13675 "2026-10-20T04:12:15Z")
What is the common problem in a control valve? --- ## [How to check control valve passing?](https://forumautomation.com/t/how-to-check-control-valve-passing/13436)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 23, 2025, 9:44am UTC](https://forumautomation.com/t/how-to-check-control-valve-passing/13436 "2025-08-23T09:44:37Z")
How to check control valve passing? --- ## [What are the various industries applications of manifold valves?](https://forumautomation.com/t/what-are-the-various-industries-applications-of-manifold-valves/12562)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 13, 2024, 1:43pm UTC](https://forumautomation.com/t/what-are-the-various-industries-applications-of-manifold-valves/12562 "2024-09-13T13:43:51Z")
What are the various industries applications of manifold valves? --- ## [DVC6000 xmtr in a DCS system](https://forumautomation.com/t/dvc6000-xmtr-in-a-dcs-system/7377)
**Author:** [@solo\_Ado](https://forumautomation.com/u/solo_Ado)\ **Replies:** 0\ **Last updated:** [November 3, 2019, 6:48pm UTC](https://forumautomation.com/t/dvc6000-xmtr-in-a-dcs-system/7377 "2019-11-03T18:48:06Z")
if a DVC6000 transmitter display “mobad” in a DCS system , does it mean that the transmitter is damaged ? --- ## [What is the standard for control valve testing?](https://forumautomation.com/t/what-is-the-standard-for-control-valve-testing/13499)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 30, 2025, 1:26pm UTC](https://forumautomation.com/t/what-is-the-standard-for-control-valve-testing/13499 "2025-08-30T13:26:40Z")
What is the standard for control valve testing? --- ## [What are the primary advantages of using a multi-turn electric actuator in industrial valve applications compared to other types of actuators?](https://forumautomation.com/t/what-are-the-primary-advantages-of-using-a-multi-turn-electric-actuator-in-industrial-valve-applications-compared-to-other-types-of-actuators/12339)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 6, 2024, 5:04pm UTC](https://forumautomation.com/t/what-are-the-primary-advantages-of-using-a-multi-turn-electric-actuator-in-industrial-valve-applications-compared-to-other-types-of-actuators/12339 "2024-08-06T17:04:17Z")
What are the primary advantages of using a multi-turn electric actuator in industrial valve applications compared to other types of actuators? --- ## [What are the key factors to consider when selecting an electric actuator for a globe control valve in terms of torque, speed, and accuracy requirements for optimal process control?](https://forumautomation.com/t/what-are-the-key-factors-to-consider-when-selecting-an-electric-actuator-for-a-globe-control-valve-in-terms-of-torque-speed-and-accuracy-requirements-for-optimal-process-control/12437)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 23, 2024, 5:13pm UTC](https://forumautomation.com/t/what-are-the-key-factors-to-consider-when-selecting-an-electric-actuator-for-a-globe-control-valve-in-terms-of-torque-speed-and-accuracy-requirements-for-optimal-process-control/12437 "2024-08-23T17:13:47Z")
What are the key factors to consider when selecting an electric actuator for a globe control valve in terms of torque, speed, and accuracy requirements for optimal process control --- ## [Can ball valves(Control Valve) be used in high-temperature applications?](https://forumautomation.com/t/can-ball-valves-control-valve-be-used-in-high-temperature-applications/12230)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 1\ **Last updated:** [July 4, 2024, 1:57pm UTC](https://forumautomation.com/t/can-ball-valves-control-valve-be-used-in-high-temperature-applications/12230 "2024-07-04T13:57:10Z")
Can ball valves(Control Valve) be used in high-temperature applications? --- ## [Features of Pinch Valves](https://forumautomation.com/t/features-of-pinch-valves/10670)
**Author:** [@Ruan\_ZC](https://forumautomation.com/u/Ruan_ZC)\ **Replies:** 0\ **Last updated:** [September 23, 2022, 3:52pm UTC](https://forumautomation.com/t/features-of-pinch-valves/10670 "2022-09-23T15:52:51Z")
The pinch valve is a control component in the pipeline fluid delivery system, mainly used to control the fluid flow. It has the functions of throttling, stopping, diverting or overflowing, and can control the normal oper… --- ## [What is a DBV valve?](https://forumautomation.com/t/what-is-a-dbv-valve/13833)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [January 17, 2026, 4:40am UTC](https://forumautomation.com/t/what-is-a-dbv-valve/13833 "2026-01-17T04:40:46Z")
What is a DBV valve? --- ## [What is the main function of the emergency blowdown valve?](https://forumautomation.com/t/what-is-the-main-function-of-the-emergency-blowdown-valve/13832)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [January 17, 2026, 4:41am UTC](https://forumautomation.com/t/what-is-the-main-function-of-the-emergency-blowdown-valve/13832 "2026-01-17T04:41:54Z")
What is the main function of the emergency blowdown valve? --- ## [What is the best way to test control valves?](https://forumautomation.com/t/what-is-the-best-way-to-test-control-valves/13435)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 30, 2025, 4:27am UTC](https://forumautomation.com/t/what-is-the-best-way-to-test-control-valves/13435 "2025-08-30T04:27:40Z")
What is the best way to test control valves? --- ## [What is the ASME standard for valve testing?](https://forumautomation.com/t/what-is-the-asme-standard-for-valve-testing/13849)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [January 24, 2026, 4:16pm UTC](https://forumautomation.com/t/what-is-the-asme-standard-for-valve-testing/13849 "2026-01-24T16:16:01Z")
What is the ASME standard for valve testing? --- ## [What is a BMS system in a furnace?](https://forumautomation.com/t/what-is-a-bms-system-in-a-furnace/13678)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 15, 2025, 10:45am UTC](https://forumautomation.com/t/what-is-a-bms-system-in-a-furnace/13678 "2025-11-15T10:45:20Z")
What is a BMS system in a furnace? --- ## [Can an idle control valve cause jerking?](https://forumautomation.com/t/can-an-idle-control-valve-cause-jerking/13676)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 15, 2025, 10:41am UTC](https://forumautomation.com/t/can-an-idle-control-valve-cause-jerking/13676 "2025-11-15T10:41:42Z")
Can an idle control valve cause jerking? --- ## [What Real Field Issues are Commonly Found During Control Valve Stroke Checks?](https://forumautomation.com/t/what-real-field-issues-are-commonly-found-during-control-valve-stroke-checks/13727)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 28, 2025, 10:07am UTC](https://forumautomation.com/t/what-real-field-issues-are-commonly-found-during-control-valve-stroke-checks/13727 "2025-11-28T10:07:28Z")
What Real Field Issues are Commonly Found During Control Valve Stroke Checks? --- ## [What is the flow rate up to 1.0 Cv?](https://forumautomation.com/t/what-is-the-flow-rate-up-to-1-0-cv/14053)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [May 9, 2026, 5:58am UTC](https://forumautomation.com/t/what-is-the-flow-rate-up-to-1-0-cv/14053 "2026-05-09T05:58:52Z")
What is the flow rate up to 1.0 Cv? --- ## [What are the grades of control valve body material?](https://forumautomation.com/t/what-are-the-grades-of-control-valve-body-material/13921)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [March 14, 2026, 4:23am UTC](https://forumautomation.com/t/what-are-the-grades-of-control-valve-body-material/13921 "2026-03-14T04:23:23Z")
What are the grades of control valve body material? --- ## [What is a good Cv value?](https://forumautomation.com/t/what-is-a-good-cv-value/14055)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [May 2, 2026, 7:53am UTC](https://forumautomation.com/t/what-is-a-good-cv-value/14055 "2026-05-02T07:53:22Z")
What is a good Cv value? --- ## [Control Valve Not Moving but Signal Looks Fine](https://forumautomation.com/t/control-valve-not-moving-but-signal-looks-fine/14205)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [June 20, 2026, 4:55am UTC](https://forumautomation.com/t/control-valve-not-moving-but-signal-looks-fine/14205 "2026-06-20T04:55:15Z")
Control Valve Not Moving but Signal Looks Fine We have a flow control valve that is causing some trouble. The DCS output is steady at around 55%, and when we checked in the field, the I/P converter is receiving the corr… --- ## [Control Valve Position Feedback Does Not Match the Actual Valve Position](https://forumautomation.com/t/control-valve-position-feedback-does-not-match-the-actual-valve-position/14354)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 5, 2026, 3:49am UTC](https://forumautomation.com/t/control-valve-position-feedback-does-not-match-the-actual-valve-position/14354 "2026-09-05T03:49:57Z")
Control Valve Position Feedback Does Not Match the Actual Valve Position A control valve in a process plant is commanded by the DCS to open to 65 percent. The valve appears to move normally, and the process response indi… --- ## [Control Valve Excess Noise](https://forumautomation.com/t/control-valve-excess-noise/14231)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 5, 2026, 9:48am UTC](https://forumautomation.com/t/control-valve-excess-noise/14231 "2026-07-05T09:48:33Z")
Control Valve Excess Noise A pressure control valve installed on a high-pressure steam line has recently started producing a loud whistling noise whenever the valve operates between 25% and 45% opening. Despite the ex… --- ## [Double Acting Cylinder Control Valve Actuator Slow Response](https://forumautomation.com/t/double-acting-cylinder-control-valve-actuator-slow-response/14229)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 5, 2026, 8:35am UTC](https://forumautomation.com/t/double-acting-cylinder-control-valve-actuator-slow-response/14229 "2026-07-05T08:35:20Z")
Double Acting Cylinder Control Valve Actuator Slow Response A refinery uses a 12-inch globe control valve with a double acting pneumatic cylinder actuator to regulate reactor feed flow. During normal operation, the DC… --- ## [What are the common causes of control valve failure?](https://forumautomation.com/t/what-are-the-common-causes-of-control-valve-failure/14487)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 22, 2026, 4:52pm UTC](https://forumautomation.com/t/what-are-the-common-causes-of-control-valve-failure/14487 "2026-10-22T16:52:40Z")
What are the common causes of control valve failure? --- ## [How much control valve leakage is acceptable?](https://forumautomation.com/t/how-much-control-valve-leakage-is-acceptable/14446)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 25, 2026, 1:14pm UTC](https://forumautomation.com/t/how-much-control-valve-leakage-is-acceptable/14446 "2026-09-25T13:14:52Z")
How much control valve leakage is acceptable? --- ## [How to select control valve characteristics?](https://forumautomation.com/t/how-to-select-control-valve-characteristics/14281)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 30, 2026, 4:38am UTC](https://forumautomation.com/t/how-to-select-control-valve-characteristics/14281 "2026-07-30T04:38:27Z")
How to select control valve characteristics? --- ## [Control Valve Is Not Reaching the Commanded Position. What Should Be Checked?](https://forumautomation.com/t/control-valve-is-not-reaching-the-commanded-position-what-should-be-checked/14401)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 13, 2026, 10:11am UTC](https://forumautomation.com/t/control-valve-is-not-reaching-the-commanded-position-what-should-be-checked/14401 "2026-09-13T10:11:43Z")
Control Valve Is Not Reaching the Commanded Position. What Should Be Checked? The control system commands the pneumatic control valve to open 80 percent, but the valve opens only about 40 percent. The positioner shows… --- ## [What is Cage-guided Globe control Valve?](https://forumautomation.com/t/what-is-cage-guided-globe-control-valve/14466)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 2, 2026, 9:20am UTC](https://forumautomation.com/t/what-is-cage-guided-globe-control-valve/14466 "2026-10-02T09:20:18Z")
What is Cage-guided Globe control Valve ? --- ## [Why does a control valve fail even after calibration?](https://forumautomation.com/t/why-does-a-control-valve-fail-even-after-calibration/14175)
**Author:** [@autoviks](https://forumautomation.com/u/autoviks)\ **Replies:** 0\ **Last updated:** [June 6, 2026, 5:53am UTC](https://forumautomation.com/t/why-does-a-control-valve-fail-even-after-calibration/14175 "2026-06-06T05:53:36Z")
Hi all, I’ve come across situations where a control valve still doesn’t perform properly even after proper calibration. In some cases, the valve shows issues like unstable flow, delayed response, or incorrect positioni… --- ## [What is hysteresis in control valves?](https://forumautomation.com/t/what-is-hysteresis-in-control-valves/14486)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 30, 2026, 3:52pm UTC](https://forumautomation.com/t/what-is-hysteresis-in-control-valves/14486 "2026-10-30T15:52:14Z")
\*\*What is hysteresis in control valves?\*\* [Previous page](https://forumautomation.com/c/field-instrumentation/valves/42.md?page=3&per_page=50)