Ball Valve Test Pressure
2009-09-22 15:24:00 I have asked my supplier for ball valves 1" Size # 300 A 216 WCB Body SS Ball , the operating pressure of the line is 45 barg . The valves are now delivered and in the test and guarantee certificate it is writted hydrotest pressure 450 PSIG for body and for seat 315 PSIG. the pipe spools where the
how to calcualate the flow rate base on valve opening% for equalpercent val
2009-09-06 13:56:00 Dear all, Is there any body know how to calculate the flow rate pass through the equal percentage control valve base on valve opening%. Thank so much, Nany
valve
2009-08-29 08:25:00 hey what is the criteria for selection of direction control valves. is it flow restriction. i am supposed to use 3/2 valve(3 position, 2 way).
Bad Valve Forces NASA to Call Off Shuttle Launch
2009-08-26 14:50:00 From PhysOrg.com - latest science and technology news stories: Launch officials halted the countdown midway through the fueling process. The seven astronauts had not yet boarded the shuttle for the scheduled early Wednesday morning flight to the international space station. A ne
Thermostatic Mixing Valve
2009-08-26 13:52:00 We have recently had a domestic solar HW system installed. It has 2 thermostatic mixing valves. The water delivered is at a very safe temperature. Is it possible to adjust the valves to increase the temperature? If so is there a relationship between turns of the valve and temperatu
Research on Valve Pipe & fittings
2009-08-25 06:00:00 Hi i am George. Currently i am sourcing for some manufacture which are making good Valves & Fittings & Pipes in China and Korea. Alternatively Joint Venture can be consider. Can anyone out there advise me? Valves Ball, Gate, Globe, Swing Check, Wafer Check, Rubber-lined / High Perf
Control Valve Sizing
2009-08-22 00:21:00 Hi, I am trying to size some control valves but I do not have enough information like the GPM or Pressure drop to correctly size it. I was wondering if it was possible to size the valve by looking at the number rows of fins located at the CHW Coil Has anyone ever had to do that before? if so ho
Control Valve Terms
2009-08-07 14:12:00 Where practical "roll" or "drop-out" all control valves to prevent pitting of the valve seats due to deposition of debris on the seat. what is the meaning of "roll" or "drop-out"?
Through Bolt vs Normal Bolts on both sides of valve
2009-08-05 13:47:00 All, This is regarding MOV. Whether all wafer type Motor Operated Valves (MOV) require through bolt option. Thanks
Torque Wrench Value Chart for Pilot Operated Safety Relief Valve ?
2009-08-05 10:13:00 Hi everybody, 1. Do anybody have torque wrench value chart for Pilot Operated Safety Relief Valve ?
Safety Valve, Relief Valve, and Safety Relief Valve
2009-08-05 10:08:00 Hi gentelmen, If the Safety Valve utilization for Gas and Steam, Relief Valve utilization for liquid, and Safety Relief Valve utilization for Gas and liquid. Why we use Safety Valve and Relief Valve Instead of Safety Relief Valve ?
European Valve Manufacturers
2009-08-05 08:49:00 looking for european manufacturers of ductile iron sewerage gate metal seated valves and water gate valves with health certificate from international institute. Regards,
Pneumatic Control Valve
2009-08-01 22:49:00 Is anybody can give me the right parts number and description picture below taken from Chicago Skyline folder; pneumatic control valve for pneumatic cylinder? Malfunction occurred when continuous air leakage at air breather (pneumatic control valve). Appreciate so much...
Pressure Drop Across A Valve
2009-07-31 19:14:00 How can i calculate the pressure drop across a valve, say a 6" globe valve?
Immersible Solenoid Valve
2009-07-30 15:52:00 Hi, Anybody can tell me about the immersible solenoid valve, which can be used to control fllow of a fluid and the solenoid valve should be immersed under sea water of 10 metre depth. The solenoid valve should 2 way to handle sea water inside the valve and it requires to on/off the sea water fl
How to Select a Proper Valve
2009-07-24 10:45:00 i need to fabricate a weighing machine to ZnO powder. now i have a hopper bin capacity of 300Kg. i need to get 25kg of ZnO powder to the bottom bin that connected to the feeder. what type of valve is suitable for this operation. bin outlet has a diameter of 8". also i believe this valve shold be con
How to Select a Valve
2009-07-24 10:45:00 i need to fabricate a weighing machine to ZnO powder. now i have a hopper bin capacity of 300Kg. i need to get 25kg of ZnO powder to the bottom bin that connected to the feeder. what type of valve is suitable for this operation. bin outlet has a diameter of 8". also i believe this valve shold be con
Check Valve
2009-07-21 14:57:00 Can we install big bore swing type Check valve directly with the gate valve? Is there any bolting problem (or site problem) bacause of this direct installation?
Corrosion-Resistant Valve Materials
2009-07-20 04:22:00 What material sould be used for valves against both H2S and CL corrosion
Flanged Ball Valve
2009-07-15 15:49:00 Hi guys, Is there any body know which manufacturer is doing 1" 2500Lb & 300dgC flanged ball valve?
Control Valve
2009-07-15 12:11:00 Guest # 1 My berif understanding of PRV/PSV/FCV is as follow : A PRV is a device that controls the pressure in a pipe system. The PRV maintains a constant control pressure downstream of the junction as long as the upstream pressure exceeds the control pressure. If the upstream pres
World wide Vendor of solenoide valve & switch
2009-07-15 09:33:00 We had been requireded Intrensically safe 3-way Solenoide valve and push button switch. So, please suggest world wide vendor for these two equiptment.
Valve Trims
2009-07-10 20:30:00 Why do we use valve trim of MONEL in caustic service and valve trim of SS 316 in amine service? ( Although I have seen Trim 8 being used in very high sizes for both services)
4 to 5 inch valve three way 220VAc in South Africa
2009-07-09 13:15:00 Hi there Could anyone help me out there to find a three way valve that will allow the water to flow in one direction when OFF and other direction when ON using a 220VAc? Please let me know where to get it here in South Africa. Best Regards. Nganpet
magnetic latch valve
2009-07-09 09:52:00 hi everybody I need help on designing the permanent magnet and the plunger dia of the magnetic latch valve the coil is rated at 3volts any help will really push me a step closer thanks in advance krishnanhemanth
Selection of Level Control Valve & Level Transmitter
2009-07-08 08:39:00 Can anyone tell me what type of Level Control Valve & Level Transmitter (to be installed in open tank) is used on water application?
Safety Valve Body Repair Procedure
2009-07-07 20:29:00 Safety valve body repair procedure needed: Observation: The steam safety valve body - nozzle fixing threaded area found to have eroded This erosion (observation) had been seen in superheater safety valve as well as in saturated steam safety valve. The depth of erosion is 10 mm MAX.
Check Valve Installation details
2009-07-02 13:10:00 I wanted to know is there any problem in Installing (Lift,Stop check valve) in vertical direction when the flow is in the downward direction. Please confirm
Removing Paint from Valve Name Plates
2009-06-29 19:13:00 Can anyone suggest ways to remove paint from valve name plate so information on the valves ( e.g. make, model number, materials, etc. ) can be readable or gleaned from the plate ? Obviously paint stripper solutions can damage the painted lettering on the name plates. I though of looking at indentati
Air Conditioning Valve Repair
2009-06-24 17:45:00 A local A/C company in Phoenix, AZ has quoted me $ 1,700 to fix a leaking valve. THis is a high pressure valve outdoors leading into the compressor of a 3 ton refrigeration A/C unit. He cited one of his "costs" as the $ 600 fee he must pay to the EPA to reclaim the present coolant. He maintains that
motor operated valve
2009-06-23 13:07:00 please tell me me where motor operated valve is suitable? and where other control valve can use like soloniod?
Valve rating
2009-06-19 14:15:00 I am confused about the Valve ratings of Threaded / socket Weld valves. I have seen the rating as 3000# CWP. What is meant by CWP? Is 3000 is the pressure that valve ca withstand?.
Using a Relief Valve as a Pressure Regulator
2009-06-15 18:08:00 I need to control a small flow 0.5 Liters /minute to 0,200 Barg , but backward the valve . I use a small diaphragm pump rated at 0.5 liter/min at 0.7 Barg. The pump take the air , then run it to a small chamber whre the pressure shal be sustain to the 0.200 Barg.
Safety valve
2009-06-12 10:07:00 Can any body guide me,how the setting pressure of all the three safety valves (main steam,drum L.H.S&drumR.H.S)calculated-
Servo Valve Feedback
2009-06-10 09:15:00 kindly be note i search for servo valve type sve60.3 with feedback. the feedback signal go to ASVE card and the servo valve control wicket gat for hydraulic recovery turbine .i have picture for the servo valve and picture for the card ASVE best regrad eng faroug sheyab ATPS
Boosters and Control Valve Assemblies
2009-06-09 10:31:00 Hai, in a control valve assembly it is found that boosters are needed in fast acting loops and positioners are related or utilised in slow control loop, but those processes are intermediate between that , for those processes what to do? kindly tell me but dont sat that deepends upon process conditio
Looking for the Right Solenoid Valve
2009-06-08 23:25:00 I have an automation application where I need to switch between a mild vacuum and atmosphere rapidly with an inlet of about 1 inch (round). The vacuum is generated by a blower (not a vacuum pump). I have searched the usual MAC, Danfoss, and other valve offerings only to be disappointed by
how much air consumed for one quick closing valve?
2009-06-07 17:00:00 how much free air consumed for one quick closing valve? what's the relation between the quantity of air consumed and the diameter of valve?
Flow Valve
2009-06-04 10:21:00 Normally control valve with I/P have, One Digital input(DI) from the Switch and one Digital output(DO) going to Solinoid and one Analog output(AO) which is going to I/P converter to operate the valve. But In my case Control valve with I/P have only Analog output. Swithes are not compulsary for
Datasheet for Shutdown Valve (SDV)
2009-06-01 12:26:00 Dear all! Does any one have a sample of SDV datasheet for reference for me, i'm really appreciate if someone could help to send me through my email: hoanjun@yahoo.com What i'm concerning about the datasheet of SDV is a there is contractor of our company bought an SDV for our metering skid.
Diaphragm or piston actuator flow control valve
2009-05-28 01:47:00 Could any body please help me to find out the right Flow control valve for road trucks offloading bay. The product is kerosene, line pressure is 60 psi, flow rate is 1700 LPM. Depending on the cleanliness of the truck tank, the product might be contaminated with small dirt. What is most suitable el
Control Valve
2009-05-21 11:35:00 In typical installed response of linear valve will be like quick opening valve. and the equal percentage valve will be linear. can we use linear valve if we need equal percentage valve characteric response in practical?. can any one tell me what are the criteria which determines t
Butterfly vs Control valve
2009-05-21 10:48:00 All Some Butterfly valves can be treated as Control valve. How can one identify them. Thanks
flow control valve
2009-05-18 20:41:00 Hi , I am looking for a flow control valve to control the flow of additive (KNO3 )into an oil line . The additive header pressure is 20 KG / cm2 and the oil line pressure is between 7 ~ 13 kg /cm2 . The required flow rate is in the range of .9 ~ 6 LPH . What is the best option for this applicatio
1991 Nissan 2.7 Diesel - Valve Problems?
2009-05-11 09:59:00 My Nissan 1991 2.7 Diesel pick up starts smoking and missing when I rev it. This is not a turbo charged engine. The smoke is blue, so it must be oil. It idles without smoking. It also starts easily enough. Recently I had the injektors done and I also changed the filters and the engine's pistons and
radiator thermal valve in cars
2009-05-09 20:37:00 hello every body i wannn make a revere engineering for apart (radiator thrmal valve in cars) but i don't know how to start, any suggestion???
flow and control valve calculation
2009-05-08 16:15:00 Dear sir, any body can give me the details of orifice flow meter and flow & Pressure control valves calculations thanking you Regrds P.Bheemasenacharya
Excess Flow Valve (LPG Spherical Tank)
2009-05-08 10:19:00 Dear all.. I have two questions for you.. 1. Is there any excess flow valve in the LPG spherical tank? 2. If there is any excess flow valve, where do we attach it? Thanks engineers.. |
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