NOTES. No safety factor has been allowed in any valve or actuator torques shown. All torques are nett. Above Actuator is Complete with Bracket (ISO Mo...
Stem torque is primarily dependent upon the tightness of the stem nut . Proper adjustment of ... The torque required to operate a ball valve is maximum at the begin- .... Electric Actuators. There are a few terms associated with electric actuators th
Catalyst Chart Volume of Catalyst to Be Used with Polyester Resins Methyl Ethyl Ketone Peroxide-Percent by Weight 1% 1.25% 1.5% 1.75% Resin(1) Volume Drop cc oz Drop
Cell D43: If you are calculating for a known pipe diameter, select the “Specific Diameter” (radio button). Otherwise ... global settings in Excel, PIPESIZE also makes use of text formulas that are formatted according to a string within the .... Actua
Gas Pipe Line Calculation Sizing – For Steel Pipe Using CPC Pipe Sizing Table (Natural Gas) This handout will guide you thru the basic, most
Download It is defined as a fishbone because of its structural outlook and appearance. The fishbone analyse is a tool for analyzing the business process and its effectiveness. This study was intended towards evaluating the supply chain and busi
Download It is defined as a fishbone because of its structural outlook and appearance. The fishbone analyse is a tool for analyzing the business process and its effectiveness. This study was intended towards evaluating the supply chain and busi
Download It is defined as a fishbone because of its structural outlook and appearance. The fishbone analyse is a tool for analyzing the business process and its effectiveness. This study was intended towards evaluating the supply chain and busi
Download It is defined as a fishbone because of its structural outlook and appearance. The fishbone analyse is a tool for analyzing the business process and its effectiveness. This study was intended towards evaluating the supply chain and busi
pto installation & owner’s manual for muncie fr series pto used on the ford torqshift ® automatic transmission keepinvehicle read operating instructions
to grow the Zara chain?
7 CONTROLS AND ACCESSORIES At Shafer we design, build and test the complete valve control system, including the actuator, controls and accessories
Download Oct 9, 2014 ... single-board computer (model: Raspberry Pi Version B,. Raspberry Pi Foundation, Cambridgeshire, UK). The computer was equipped with an ...
Power Supply Measurement and Analysis Primer graphic band height 4” A4 crop US crop red bar - always on the left - always the same size inner portion of graphic band
Agile Supply Chain: Zara's case study analysis ... Agile supply chain, Zara case study analysis ... Procurement is value adding process and not a cost centre
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
An expansion tank is required in a closed loop heating or chilled water HVAC system for two very ... The goal in sizing any expansion tank is to ... SIZING GUIDE. 18
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
11 Paying Late” on page 4. Add penalty and interest to your tax due and enter the total on line 32. Generally, if you owe more than $500, you are required to make
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
Download Second-line ART for HIV-infected patients failing first-line therapy. Background. Globally, it is estimated there were 33 million people living with HIV in 2007, the majority of who reside in Sub-Saharan Africa (UNAIDS 2008). Highly acti
VALVE/ ACTUATOR TORQUE SIZING ANALYSIS CHART FOR TRUNNION BALL VALVES PISTON STYLE SCOTCH YOKE ACTUATOR SIZING CALCULATIONS SHEET LARGER ACTUATORS 2500NM TO 17000NM SPRING RETURN (SET SPRING TO CLOSE) Item
Valve Size/Class
Valve BTO (N-m)
Valve RTO (N-m)
Valve ETO (N-m)
Valve BTC (N-m)
Valve RTC (N-m)
Valve ETC (N-m)
MAST (N-m)
Maximum DELTA P
1
100NB 600CL
500
150.00
175
445
150.00
375
2850
9900 KPA
Actuator Model/Type
Actr BTO (N-m)
Actr RTO (N-m)
Actr ETO (N-m)
Actr BTC (N-m)
Actr RTC (N-m)
Actr ETC (N-m)
Actr BTO (N-m)
Air Supply Pressure
HD722SR80
1346
673.00
807.60
1278.7
673.00
807.60
1346
5.5 BAR
Safety Factor
169%
349%
361%
187%
349%
115%
-53%
1A
NOTES No safety factor has been allowed in any valve or actuator torques shown. All torques are nett. Above Actuator is Complete with Bracket (ISO Mounting) and high tensile Adaptor All Torque Values are theoretical, however where required we will torque test prior to despatch. The real valve torque value can be higher depending upon the following listed factors as these factors can drastically increase (or decrease) the torque. Please advise if any of the following factors are applicable. Approximate valve torque increases/ decreases (Apply safety factor accordingly) are:1) Fluid carrying dust, powder, abrasive particles (+50% to 125%). In extreme cases can be higher. i.e. Up to 200% 1a) Slurry, pulp, resins, paste (+50%) can be even higher in some cases 2) Dry service (Dry Gas) (+25%) 3) High or low temperature (consult us) 4) Infrequent use (+30-50%) *1 - *2 5) If a higher minimum air supply than shown above is available more torque will be produced in the air operation phase. 6) Torque is based on a maximum Delta P for class. If your actual working pressure is lower please advise as a smaller actuator may be possible. 7) Lubricated service (clean oil or other high lubricity fluid) (+15%) *1 PTFE/RPTFE can require more torque to unseat after a period of time due to its fluidity & memory. For Devlon/ Nylon Seat the valve torque is higher and PEEK is even higher (of course we have factored into torque of valve where applicable), however as these are harder materials (especially PEEK) infrequent use has a lesser effect on the increase in torque. *2 Where set fail closed, an additional infrequent use safety factor at least needs to be applied to spring stroke torques (especially the spring BTC if set fail closed or the spring BTO if set fail open). Infrequent use:- Once per month +25%, once every 4 months +30%, once per month, over 4 months +40% Abbreviations:BTO = Break to open (air stroke)
