Control Valve
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 BUNSEN BURNER CONTROL VALVE REGULATOR $45.95 Time Remaining: 3d 2h 37m Buy It Now for only: $45.95 |
 Heidolph Rotavac Valve Control 591 00130 01 0 Guaranteed Working $799.99 Time Remaining: 3d 19h 27m |
 2 PCS Flow Control Needle Valve Dental Equipment Use $19.99 Time Remaining: 18d 2h 38m Buy It Now for only: $19.99 |
 Aldrich Lecture Bottle Control Valve Z146951 $50.00 Time Remaining: 11d 20h 13m Buy It Now for only: $50.00 |
 MKS INSTRUMENTS TYPE 252A EXHAUST VALVE CONTROLLER $60.00 Time Remaining: 29d 22h 20m Buy It Now for only: $60.00 |
 Chromatography flow control adapter24 400 4 valve $24.19 Time Remaining: 16d 17h 36m Buy It Now for only: $24.19 |
 Used 1 2 316 Actuated Research Control Valve Badger $149.00 Time Remaining: 24d 16h 12m Buy It Now for only: $149.00 |
 1 2 316 Actuated Research Control Valve Badger $249.00 Time Remaining: 24d 16h 12m Buy It Now for only: $249.00 |
 2 WHITEY SS 42XF2 2500 PSI 100F VALVE CONTROL 125 32M $79.99 Time Remaining: 24d 23h 51m Buy It Now for only: $79.99 |
 FIATRON FIA VALVE CONTROLLER $75.00 Time Remaining: 28d 22h 24m Buy It Now for only: $75.00 |
 Integra Medtronic Neuro Control Magnet Lead Kit Delta Valve Closure Lot of 4 $45.00 Time Remaining: 9d 14h 47m Buy It Now for only: $45.00 |
 WATERS 600 CONTROLLER 610 Valve Station 610 fluid unit $4,999.99 Time Remaining: 20h 26m Buy It Now for only: $4,999.99 |
 BRAND NEW Flow rate control valve 0 4mm socket 24 40 $50.00 Time Remaining: 5h 38m Buy It Now for only: $50.00 |
 NEW Cornerstone Moen CFG 45511 Rough in Volume Control Valve with Stops $31.96 Time Remaining: 13d 5h 22m Buy It Now for only: $31.96 |
 CO2 Needle Valve Regulator Splitter Solenoid Control $9.45 Time Remaining: 17d 2h 6m Buy It Now for only: $9.45 |
 1500 max PSIG FLOW VALVE CONTROL $20.00 Time Remaining: 8d 22h 54m Buy It Now for only: $20.00 |
 NEW 3 AMOT 4GPDCFBOR PNEUMATIC GPD 3 WAY TEMPERATURE CONTROL VALVE $825.00 Time Remaining: 9d 18h 50m Buy It Now for only: $825.00 |
 Spring loaded with solenoid control valve 60 psi 24 VDC $29.99 Time Remaining: 5d 20h 51m Buy It Now for only: $29.99 |
 1 Robertshaw Model VC 210 BLR Mini Max Diaphragm Control Valve $30.00 Time Remaining: 12d 21h 34m Buy It Now for only: $30.00 |
 Valco VICI Cheminert EHMA EHCA CE Actuator Valve Controller Hi Speed Med Torque $299.00 Time Remaining: 2d 22h 45m Buy It Now for only: $299.00 |
 Nupro Precision Micrometer Flow Control Adjust Valve $68.99 Time Remaining: 29d 5h 6m Buy It Now for only: $68.99 |
 NEW Ellis Watts Alco Controls TCLE 7 1 2 HW Thermo Expansion Valve $37.95 Time Remaining: 25d 1h 28m Buy It Now for only: $37.95 |
 HP 89078A Valve Pump Controller $60.00 Time Remaining: 10d 17h 10m Buy It Now for only: $60.00 |
 MKS CONTROL VALVE 253A 1 2CF 2 SP SIZE 322 $75.00 Time Remaining: 3d 15h 58m Buy It Now for only: $75.00 |
 ArthroCare Coblator II Flow Control Valve Unit for ENT Ref10101 HELP ORPHANS H $125.00 Time Remaining: 17d 20h 51m Buy It Now for only: $125.00 |
 3 4 Three Way 316 Actuated Research Control Valve Badger $349.00 Time Remaining: 24d 16h 12m Buy It Now for only: $349.00 |
 Brooks Model 8504 Needle Control Valve NOS NIB $29.50 Time Remaining: 7d 4h 24m Buy It Now for only: $29.50 |
 New Sloan Valve Company H 700 A Series Back Check Screwdriver Control Stop 1 $35.00 Time Remaining: 20d 15h 39m Buy It Now for only: $35.00 |
 Parr Valve 1525 For Calorimeter Controller Used $45.00 Time Remaining: 7d 16h 32m Buy It Now for only: $45.00 |
 Handpiece Water Flow Control Needle Valve NEW $44.00 Time Remaining: 12d 19h 22m Buy It Now for only: $44.00 |
 Dental Handpiece Pinch Valves With Air Water Controls LOT OF 3 $79.00 Time Remaining: 8d 20h 1m Buy It Now for only: $79.00 |
 Chicago Faucets 962 VOSCP Remote Control Valve NEW $49.88 Time Remaining: 19d 18h 42m Buy It Now for only: $49.88 |
 PFEIFFER BALZERS TCF 103 VENT CONTROL for TVF 012 VENTING VALVE $195.00 Time Remaining: 25d 23h 37m Buy It Now for only: $195.00 |
 810 MTS 43911 439 Fatigue Tensile Tester Servo Valve Controller $250.00 Time Remaining: 29d 19h 58m Buy It Now for only: $250.00 |
 NEW ENTEGRIS 202 133 CONTROLLED ACTUATION SPEED DEVICE CAS FOR INTEGRA VALVES $19.99 Time Remaining: 17d 18h 49m Buy It Now for only: $19.99 |
 Tecan US Valve Controller $79.00 Time Remaining: 24d 13h 38m Buy It Now for only: $79.00 |
 New Rheodyne 7164 Air Control Valve $220.00 Time Remaining: 6d 39m Buy It Now for only: $220.00 |
 Millipore Waters 610 Valve Station for use with 600 Controller + 610 Fluid Unit $249.99 Time Remaining: 9d 12m Buy It Now for only: $249.99 |
 Waters Mass Spectrometer Control Panel with Rheodyne 7010 Valve 5701 Actuator $499.99 Time Remaining: 25d 23h 45m Buy It Now for only: $499.99 |
 DCI 7130 Dental Handpiece Control Water Relay Flow Control Valves LOT OF 6 $225.00 Time Remaining: 26d 18h 59m Buy It Now for only: $225.00 |
 New Spears 1 2 npt PVC Flow Control Valve $89.00 Time Remaining: 10d 20h 57m Buy It Now for only: $89.00 |
 NEW Circle Seal Controls Hydraulic System Bleeder Valve Model P15 500 $129.95 Time Remaining: 2d 16h 30m Buy It Now for only: $129.95 |
 HD BAUMANN 16 83411SA SANITARY ANGLE CONTROL VALVE SST $1,599.99 Time Remaining: 22h 14m Buy It Now for only: $1,599.99 |
 BME SYSTEMS Six Channel Valve Controller for Lee Company FFAA series valves $199.99 Time Remaining: 1d 23h 39m Buy It Now for only: $199.99 |
 Valco VICI ETMA ETCA CE Cheminert Injector Valve Actuator Controller 2 Position $299.00 Time Remaining: 4d 22h 54m Buy It Now for only: $299.00 |
 SWAGELOK CONTROL VALVE SS 44XS6 NEW $150.00 Time Remaining: 10d 18h 36m Buy It Now for only: $150.00 |
 Valco VICI ETMA Actuator Cheminert Valve 8 Port 2 Position Controller EPCA CE $299.00 Time Remaining: 2d 22h 36m Buy It Now for only: $299.00 |
 Swagelok SS 8P6T Plug Valve Green Handle 1 2 Tube 1 4 Turn Control Valve $118.00 Time Remaining: 22d 14h 3m Buy It Now for only: $118.00 |
 EUROTHERM TEMP FLOW Vacuum Valve CONTROLLER $225.00 Time Remaining: 28d 22h 4m Buy It Now for only: $225.00 |
 SGE Micro Control Valve MCVT 1 100 Part 1236041 $40.00 Time Remaining: 21d 5h 19m Buy It Now for only: $40.00 |
 Dental Equipment Water Relay Flow Control Combo Valve $79.00 Time Remaining: 15d 18h 50m Buy It Now for only: $79.00 |
 SMC Brass Process Control Valve VNB401C 25A B $69.00 Time Remaining: 13d 11h 6m Buy It Now for only: $69.00 |
 Barnstead 2260 VENT CONTROL VALVE RCV081 62903 $119.20 Time Remaining: 16d 6h 14m Buy It Now for only: $119.20 |
 MDT Ritter Castle 1000R VENT CONTROL VALVE RCV081 62903 $119.20 Time Remaining: 16d 7h 11m Buy It Now for only: $119.20 |
 RKL CONTROLS NEOPRENE 2 PINCH VALVE LINER LAKOS 104987 $99.99 Time Remaining: 26d 14h 44m Buy It Now for only: $99.99 |
 2 GENERANT SERIES 4000 QUICK OPENING CONTROL VALVE $65.00 Time Remaining: 24d 1h 15m Buy It Now for only: $65.00 |
 ISA Riber Rib CVEP Electropneumatic Valve Control Rackmount $265.47 Time Remaining: 18d 23h 9m Buy It Now for only: $265.47 |
 MKS Valve Throttle Model 253B Pressure Control KF40 Baratron $225.00 Time Remaining: 9d 1h 56m Buy It Now for only: $225.00 |
 Saliva Ejector Valves W Rotary Control Package Of 10 $89.00 Time Remaining: 25d 21h 31m Buy It Now for only: $89.00 |
 MICROMERITICS REPLACEMENT SEALS AND VALVE CONTROL BOARD $175.00 Time Remaining: 10d 3h 10m Buy It Now for only: $175.00 |
 Heidolph Rotavac Valve Control 115 VAC 50 60 HZ Free Shipping in USA $969.99 Time Remaining: 10d 5h 15m Buy It Now for only: $969.99 |
 DCI 7016 Dental Handpiece Control On Off Toggle Valves LOT OF 6 VALVES $89.00 Time Remaining: 27d 20h 36m Buy It Now for only: $89.00 |
 Valco VICI Cheminert EMTMA EMHCA CE 8 Valve Actuator Controller High Torque Kit $399.00 Time Remaining: 2d 22h 45m Buy It Now for only: $399.00 |
 HD BAUMANN 16 83811SA SANITARY ANGLE CONTROL VALVE SST $1,599.99 Time Remaining: 22h 16m Buy It Now for only: $1,599.99 |
 SPIRACLE MULTI MANAGER O2 908 8 FLOW CONTROL VALVE $849.99 Time Remaining: 17d 17h 35m Buy It Now for only: $849.99 |
 Dental Handpiece Water Relay Needle Valve Flow Control $49.00 Time Remaining: 8d 18h 18m Buy It Now for only: $49.00 |
 MAC Valves 714C 11 PI 514AA Solenoid Control Valve $61.13 Time Remaining: 3d 23h 50m Buy It Now for only: $61.13 |
 DCI 7052 Dental Handpiece Water Flow Control Valves LOT OF 6 $105.00 Time Remaining: 25d 17h 40m Buy It Now for only: $105.00 |
 Shimadzu FCV 14AH column switching valve with controller $999.00 Time Remaining: 3d 21h 4m Buy It Now for only: $999.00 |
 Datametrics 1454 Valve Controller $195.00 Time Remaining: 13d 16h 36m Buy It Now for only: $195.00 |
 2 Kloehn Intellect I 50120 8 Port Fluid Control Valve Driver Module Lab Drive $58.49 Time Remaining: 24d 10h 56m Buy It Now for only: $58.49 |
 SCHBERT SALZER 8021 Sliding Gate Control Valve NEW $1,049.00 Time Remaining: 9d 20h 6m Buy It Now for only: $1,049.00 |
 2 SWAGELOK 1 2 15000 VALVE CONTROL W OTHER PARTS $79.99 Time Remaining: 24d 23h 48m Buy It Now for only: $79.99 |
 Dental Handpiece Control Auto Selector Valve For 2 Handpieces $49.00 Time Remaining: 19d 19h 2m Buy It Now for only: $49.00 |
 H D Baumann Control Valve Mod 16 84021S $78.91 Time Remaining: 29d 3h 15m Buy It Now for only: $78.91 |
 2 Kloehn Intellect II 23425 8 Port Fluid Control Valve Driver Module Lab Drive $77.99 Time Remaining: 24d 10h 36m Buy It Now for only: $77.99 |
 Pressure Pot 8 Quart w Thermometer Air Valve Control $522.50 Time Remaining: 29d 19h 21m Buy It Now for only: $522.50 |
 Precision Air Pneumatic Control Unit W Filter Sensor Reg Valve On Off Valve $279.00 Time Remaining: 16h 51m Buy It Now for only: $279.00 |
 Dental Handpiece Control Auto Selector Valves For 2 Handpieces LOT OF 2 $89.00 Time Remaining: 19d 21h 43m Buy It Now for only: $89.00 |
 5 NIB Asco Red Hat 1 4in Adjustable Flow Control Valves $40.00 Time Remaining: 24d 14h 1m Buy It Now for only: $40.00 |
 Comptech Model 2252 Throttle Valve Controller MKS $158.10 Time Remaining: 3d 12h 34m Buy It Now for only: $158.10 |
 Vacutec 800 Aspirator Replacement Control Valve Model JB0112 033 $54.99 Time Remaining: 2d 21h 35m Buy It Now for only: $54.99 |
 HEWLETT PACKARD 89078A VALVE PUMP CONTROLLER EXCELLENT $450.00 Time Remaining: 13d 7h 46m Buy It Now for only: $450.00 |
 1 NEW Lucifer Parker fluid control Division 4way solenoid valve $80.00 Time Remaining: 21d 18h 57m Buy It Now for only: $80.00 |
 MKS 252A Exhaust Valve Controller $465.00 Time Remaining: 1d 17h 24m Buy It Now for only: $465.00 |
 MKS 252A Exhaust Valve Controller w o power cord $372.00 Time Remaining: 1d 17h 59m Buy It Now for only: $372.00 |
 MKS 252A 1 Exhaust Valve Controller w o power cord $372.00 Time Remaining: 1d 18h 22m Buy It Now for only: $372.00 |
 HP 5890 GC Proportional Control Valve $985.00 Time Remaining: 22d 20h 33m Buy It Now for only: $985.00 |
 Pressure Pot 8 Quart w Thermometer Air Valve Control $522.50 Time Remaining: 26d 14h 51m Buy It Now for only: $522.50 |
 Isco Foxy Valve Controller HPLC $179.00 Time Remaining: 25d 21h 42m Buy It Now for only: $179.00 |
 Fluid control valve 3 4 cf8m 1000 wog New s s $34.99 Time Remaining: 21d 17h 34m Buy It Now for only: $34.99 |
Control Valve
Water Heater Gas Control Valve
Your gas water heater is a well engineered reliable appliance. With a tank type water heater it is really very simple when you understand it operation properties. The gas control valve is the heart of your water heater. The gas control valve takes care of several water heater functions. The first thing it does is meter the amount of gas delivered to your water heaters burner assembly. The control valve controls the gas supply to your pilot light and keeps a steady supply. The control valve also has to make sure the pilot light stays lit, if this is not done the pilot light could go out and fill the space with gas. This would result in an explosive situation.
This is avoided by an important safety device called a thermocouple. The burner assemble has a separate circuit for the pilot light and main burner that heats the tank. This is an important function it burns the pilot light directly under the thermocouple. The thermocouple is made up of two dissimilar metals that when heated create a electric charge or currant. This provides all the power you water heater needs to operate. This current is used to power an electro magnet in the gas valve that enables flow or turns off the gas to the water heater control valve. This is what tells your water heater the pilot light is out pretty simply
The next issue your water heater control valve has to deal with is when to turn the water heater main burner on and off. This is done with a temperature probe that extends into the tank. Once the control valve has the tank water temperature it uses a thermostat to call for gas to fire the main burner. Once up to operating temperature the gas valve shuts the supply off to the water heaters main burner leaving the pilot light lit. This cycle is repeated over and over again for years. There is a lot of engineering that went into making your water heater simple and efficient.
This is a typical tank type water heater burner assemble. Today's water heaters use a sealed combustion chamber that is vapor resistant to gas fumes in a garage or inside your home. If you have questions about your gas water heater please give us a call today and we would love to earn your business
About the Author
Danny Gordon at All Around Plumbing http://mytxplumber.com/
972-313-4659
Part # for a 1991 yamaha 70 outboard pressure control valve?
I need a pressure control valve and spring for a 1991 yamaha 70 outboard. The diagram doesn't show the part but it is definately there. I need all the parts needed for installing a new pressure control valve. Spring etc. Where can I get them?
if i am not mistaking Yamaha had a recall on that , you are talking about the power trim & tilt control valve ? if so call your local Yamaha dealer hope this helps;)
Dorot control valves project for Northumbrian Water LTD, UK