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InspectAPedia ® Home PLUMBING SYSTEM INSPECT DIAGNOSE REPAIR AGE of PLUMBING MATERIALS & FIXTURES AGE of CHIMNEYS & FIREPLACES AGE of AIR CONDITIONERS & HEAT PUMPS AGE of HEATERS, BOILERS, FURNACES AGE of PIPING AGE of WATER HEATERS AIR DISCHARGE at FAUCETS, FIXTURES AIR INLET VALVE, WATER TANK AIR VOLUME CONTROLS, WATER TANK ANTI SCALD VALVES ANODES & DIP TUBES on WATER HEATERS APPLIANCE EFFICIENCY RATINGS AQUASTAT CONTROL Functions BACKDRAFTING HEATING EQUIPMENT BACKFLOW PREVENTER VALVE, HEATING SYS BACKFLOW PREVENTER, HEATER WATER FEEDER BACKUP PREVENTION, SEPTIC BACKUP PREVENTION, SEWER LINE BACKWATER VALVES, SEWER LINE BATHROOM MOLD BATHROOM VENTILATION BIOLOGICAL POLLUTANTS BOD WASTEWATER TEST Bisphenol-A, BPA BLEVE EXPLOSIONS BLOCKED DRAIN REPAIR METHODS BOILERS, HEATING BUILDING SAFETY HAZARDS GUIDE CARBON MONOXIDE - CO CHECK VALVES, WATER SUPPLY CHEMICAL CONTAMINANTS in WATER CHIMNEY INSPECTION DIAGNOSIS REPAIR CHINESE DRYWALL HAZARDS CHLORINE IN DRINKING WATER CHLORINE IN SEPTIC WASTEWATER CISTERNS CLEANOUTS, PLUMBING DRAIN CLOGGED DRAIN DIAGNOSIS & REPAIR CLOGGED SUPPLY PIPES, DIAGNOSIS CLOGGED SUPPLY PIPES, REPAIR CLOGGED SUPPLY PIPES, HOT WATER COMPRESSION FITTINGS CONDENSATION or SWEATING PIPES, TANKS CROSS CONNECTIONS, PLUMBING DEBRIS in WATER SUPPLY, Water Heater DEPTH of DRAIN & SEWER PIPES DEPTH of SEPTIC TANK DIAELECTRIC PIPE FITTINGS DRAIN & SEWER PIPING DRAIN LINE DEPTH DRAIN NOISES DRAIN a WATER HEATER TANK DRYER VENTING FILTERS, WATER FLARE FITTINGS FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP FLOODED HEATING EQUIPMENT REPAIR FLOODED SEPTIC SYSTEMS, REPAIR FLOODED WATER HEATER REPAIR FLOOR DRAIN / TRAP ODORS FLUSHOMETER VALVES for TOILETS URINALS FREEZE-PROOF PIPES GAS DETECTION INSTRUMENTS GAS FIRED WATER HEATERS GAS LP & Natural Gas Safety Hazards GAS LP & Natural Gas Pressures GAS PIPING, VALVES, CONTROLS GALVANIC SCALE & METAL CORROSION GALVANIZED STEEL PIPING HARD WATER - SOFTENERS HEAT TAPES, Heat, Insulation prevent Freeze-Up KITCHEN VENTILATION LEAD POISONING HAZARDS GUIDE LEAK TYPES, Water Supply/Drain Pipe MANUALS & PARTS GUIDES - HVAC METHANE GAS SOURCES MIXING / ANTI-SCALD VALVES MIX VALVE SCALD PROTECTION, Best Practices MUNICIPAL WATER PRESSURE IMPROVEMENTS MOLD INFORMATION CENTER MVOCs & MOLDY MUSTY ODORS NOISE / SOUND DIAGNOSIS & CURE NOISE CONTROL for HEATING SYSTEMS NOISE CONTROL for PLUMBING NOISE, PLUMBING DRAIN DIAGNOSIS NOISE, PLUMBING DRAIN REPAIR NOISE, PLUMBING CHECKLIST NOISE, WATER HEATER NOISES, WATER PUMP ODORS GASES SMELLS, DIAGNOSIS & CURE ODORS IN WATER ODORS, SEPTIC or SEWER ODORS SEWER GAS in COLD WEATHER ODORS, SULPHUR SMELL SOURCES ODORS, URINE REMOVAL OIL FIRED WATER HEATERS OIL-FIRED BOILERS, HEATING OIL FUEL TYPES & CHARACTERISTICS OIL TANK PIPING & PIPING DEFECTS OIL TANKS OUTHOUSES & LATRINES PIPING IN buildings, Clogs Leaks Types PLASTIC PIPING ABS CPVC PB PEX PVC PLASTIC PIPE INSTALLATION ERRORS PLASTIC PIPE LEAK CAUSES PLUMBING FIXTURES, KITCHEN, BATH Plumbing Materials & Fixtures, Age, Types PLUMBING NOISE CONTROL PLUMBING VENT DEFINITIONS & CODES PLUMBING VENT DEFECTS & NOISES PUMPS, SEPTIC PUMPS PUMPS, SEWAGE EJECTOR / GRINDER PUMPS PUMPS, SUMP PUMPS PUMPS, WATER PUMPS PUMPS, WATER REPAIR RANGE BOILERS RELIEF VALVE LEAKS REPAIR BURST LEAKY PIPES SEWER GAS ODORS SEWER LINE LEAKS & ODORS SEWAGE BACKUP, WHAT TO DO SEWER BACKUP PREVENTION SEWAGE & SEPTIC CONTAMINANTS SEWAGE CONTAMINATION in buildings SEWAGE EJECTOR / GRINDER PUMPS SEWAGE PATHOGENS in SEPTIC SLUDGE SEWAGE PUMPS SEWAGE PUMP CLOG DAMAGE SEWER GAS ODORS SEWER LINE REPLACEMENT SHUTOFF VALVE LOCATION, USE SOUND CONTROL for PLUMBING SULPHUR & SEWER GAS SMELL SOURCES SUMP PUMPS GUIDE SUPPLY PIPING SWEATING (CONDENSATION) on PIPES, TANKS TANK TYPES: WATER, OIL, EXPANSION, ALL TANKLESS COILS TANKLESS WATER HEATERS Temperature Pressure Relief Valves - Water Heaters TOILETS, INSPECT, INSTALL, REPAIR TOILET ALTERNATIVES TOILET FLUSHOMETER VALVES TOILET INSTALLATION PROCEDURE TOILET OVERFLOW EMERGENCY TOILET PLUGS, SEWER BACKUP TOILET REPAIR GUIDE TOILET TISSUE CHOICES TOILET TYPES Toilet Types, Flush Methods TOILETS, DON'T FLUSH LIST TRANSITE Pipe Water Supply Piping TRAPS on PLUMBING FIXTURES VALVES, PLUMBING VENT PIPING WATER CONTAMINANT LEVELS WATER FILTERS WATER HAMMER NOISE DIAGNOSE & CURE WATER HEATERS WATER HEATER SCALE - De-Liming Procedure WATER ODORS, CAUSE CURE WATER PIPES, Clogs Leaks Types WATER PRESSURE & FLOW MEASUREMENT WATER PRESSURE LOSS DIAGNOSIS & REPAIR WATER PRESSURE PROBLEM DIAGNOSIS TABLE WATER PRESSURE PUMP REPAIR GUIDE WATER PUMPS, TANKS, TESTS, WELLS, REPAIRS WATER PUMP REPAIR GUIDE WATER PURIFIERS WATER QUALITY TESTS, CONTAMINANTS, TREATMENT WATER QUANTITY IMPROVEMENT WATER SHUTOFF VALVE LOCATION, USE WATER SOFTENERS & CONDITIONERS WATER SOURCE ALTERNATIVES WATER SUPPLY & DRAIN PIPING WATER TANK: USES, TROUBLESHOOTING WATER TESTS, CONTAMINANTS, TREATMENT WATER TESTING ADVICE WATER TEST CHOICES & WATER TEST FEES WATER TEST INTERPRETATION WATER TREATMENT EQUIPMENT CHOICES WELLS CISTERNS & SPRINGS WINTERIZE A BUILDINGS WINTERIZE A BUILDING More Information |
This article explains LP Gas Pressure Regulators - How to Inspect & Test LP Gas Valves Regulators, or Gas Controls and we provide descriptions and photographs of unsafe LP gas piping, LP gas regulators, or LP gas valves & controls on appliances or heating equipment. We describe indications of unsafe or improperly operating gas appliances, gas meters, and other gas installation defects. This document also provides free sample draft home inspection report language for reporting defects in gas regulators, valves, controls, or piping at residential properties. Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman. Gas Regulator or Control Inspection, Testing, & Defect GuideGas Appliance Regulators: Readers concerned with installing, inspecting, or testing LP or Natural Gas regulators which are found on appliances such as LP or Natural Gas fired boilers, furnaces, water heaters or appliances should also see How to Inspect & Test LP or Natural Gas Regulators & Controls on Appliances. Readers concerned with changing the fuel type between LP gas and natural gas for a gas fired appliance should see our safety warnings at Gas Conversion LP Natural Gas. Watch out: improper installation and even improper inspection and testing methods involving natural or "LP" gas can involve dangerous conditions and risk fire or explosion. If you smell gas you should leave the building immediately and should do so without doing anything that could create a spark such as operating a light switch or telephone. From a safe location, call your gas company's emergency line and/or your fire department. The text provided here is a working draft and may be incomplete or inaccurate. Location of the LP Gas Cylinder or Tank regulator & Position of the LP Gas Tank RegulatorHow & Why to Protect an LP Gas Tank Regulator from Rain, Snow, IceHow to Locate the Gas Cylinder On-Off Valve on an LP Gas TankWhat goes wrong with gas regulators on LP Gas Tanks?Gas pressure too high: Adjustment of a gas regulator might also be necessary if the gas piping from source (meter or tank) to the appliance is long or is too small in diameter. If the gas regulator delivers gas at too high a pressure the gas flame may be also too big (and too hot), which can accelerate
rusting and can warp the heat exchanger at its lower joints causing a "crack" to appear.
A cracked heat exchanger on a gas appliance is unsafe.
Our correspondent, Charles commented that: Gas pressure too low: if the gas regulator is not properly adjusted or if there are other problems in the gas piping or supply system the gas pressure may be too low, providing an inadequate and possibly unsafe flame. Depending on the cause of the problem, it may be possible to correct this at the regulator, but don't try boosting pressure at a gas regulator unless the pressure has always been too low. Otherwise when the underlying cause for low gas pressure is corrected elsewhere, the flame will be too big and pressure too high at the burner - an unsafe condition. Immediate LP or natural gas safety hazards: if there is evidence of an LP or natural gas leak at a building, gas odors, for example, you should:
How are LP Tank Gas Regulator Valves Inspected and Tested?SAFETY WARNING: If you lack the training and equipment, do not attempt to disassemble or mess with a gas regulator as you could create a very dangerous or even fatal problem. See Gas Regulators for Appliances for details. LP or Natural Gas Regulator or Control Inspection, Testing, & Defect GuideGas Appliance Regulators: Readers concerned with installing, inspecting, or testing LP or Natural Gas regulators which are found on appliances such as LP or Natural Gas fired boilers, furnaces, water heaters or appliances should also see How to Inspect & Test LP or Natural Gas Regulators & Controls on Appliances. Readers concerned with changing the fuel type between LP gas and natural gas for a gas fired appliance should see our safety warnings at Gas Conversion LP Natural Gas. General safety warning: improper installation and even improper inspection and testing methods involving natural or "LP" gas can involve dangerous conditions and risk fire or explosion. Watch out: If you smell gas you should leave the building immediately and should do so without doing anything that could create a spark such as operating a light switch or telephone. From a safe location, call your gas company's emergency line and/or your fire department. The text provided here is a working draft and may be incomplete or inaccurate. Location of the LP Gas Cylinder or Tank regulator & Position of the LP Gas Tank RegulatorHow & Why to Protect an LP Gas Tank Regulator from Rain, Snow, IceHow to Locate the Gas Cylinder On-Off Valve on an LP Gas TankWhat goes wrong with gas regulators on LP Gas Tanks?Gas pressure too high: Adjustment of a gas regulator might also be necessary if the gas piping from source (meter or tank) to the appliance is long or is too small in diameter. If the gas regulator delivers gas at too high a pressure the gas flame may be also too big (and too hot), which can accelerate rusting and can warp the heat exchanger at its lower joints causing a "crack" to appear. A cracked heat exchanger on a gas appliance is unsafe. Our correspondent, Charles commented that:
Gas pressure too low: if the gas regulator is not properly adjusted or if there are other problems in the gas piping or supply system the gas pressure may be too low, providing an inadequate and possibly unsafe flame. Depending on the cause of the problem, it may be possible to correct this at the regulator, but don't try boosting pressure at a gas regulator unless the pressure has always been too low. Otherwise when the underlying cause for low gas pressure is corrected elsewhere, the flame will be too big and pressure too high at the burner - an unsafe condition. Watch Out: Immediate LP or natural gas safety hazards: if there is evidence of an LP or natural gas leak at a building, gas odors, for example, you should:
How are LP Tank Gas Regulator Valves Inspected and Tested?SAFETY WARNING: If you lack the training and equipment, do not attempt to disassemble or mess with a gas regulator as you could create a very dangerous or even fatal problem. See Gas Regulators for Appliances for details about regulators found at gas-burning appliances themselves. What are the Different Types of LP Gas RegulatorsBecause of varying requirements, LP gas regulator types found at a typical residential or light commercial property may vary using:
Other regulators less likely to be found at a residential property include:
What are the Typical LP Gas, Propane Gas, or Natural Gas Pressures Found in Residential SystemsDetails about the different pressures found or set for LP gas, propane, and natural gas including before and after different gas pressure regulators are at LP & Natural Gas Pressures. LP Gas or Propane Pressures:
Natural Gas pressures:
... Frequently Asked Questions (FAQs)... Ask a Question or Search InspectApediaQuestions & answers or comments about LP gas tank or cylinder regulators & controls . Ask a Question or Enter Search Terms in the InspectApedia search box just below. Technical Reviewers & ReferencesRelated Topics, found near the top of this page suggest articles closely related to this one.
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