10 Common Types of Valves Every Oil and Gas Engineer Should Know About
Valves are essential parts of any piping system used to control the flow and pressure of contents, whether that is oil, gas, liquid, or vapors. Here is our list of 10 of the most commonly used oil and gas valves in the industry and the reasons for their existence.
ARV or ARC valves
Acronyms for ‘Automatic Recirculation Valve’ and ‘Automatic Recirculation Control’, these valves are multi-functional but has the primary purpose of ensuring that a pre-determined minimum flow is assured through centrifugal pump at all times.
As centrifugal pumps consistently suffer from being over heated, its important to keep the minimum flow otherwise dry valves means permanent damage.
Ball valves
A ball valve is a quarter-turn rotational motion valve that used a ball-shaped disk to control a flow. If the valve is opened, the holes in the ball stay in line with the body inlet allowing contents to pass.
The balls are generally made out of several metallics whilst the seats are made from soft materials like Teflon. The combination of materials means the ball valve can operate at temperatures as low as -200 deg C and as high as 500 deg C.
Mainly used for air, gases and liquids, ball valves are quick to turn on and off and have a tight sealing with low torque. The only downside to these valves are the lack of throttling properties available.
Bellow sealed valves
There are two main types of bellow, the forged and the welded versions. Forged bellows are usually made from a thin wall of foil in a tube which is then longitudinally fusion welded.
The welded versions are made by welding washer-like plates of thin metal together at both the inner and outer circumference of the washers.
Traditionally made from stainless steel, they are most commonly used in conjunction with gate or globe designs due to their internal construction and axial movement of the valve stem.
Breather valves
Also known as vacuum relief valves, breather valves are a special type of relief valve designed for tank protection. The valves prevent the build up of excessive pressure or vacuum which can unbalance the system or damage the storage vessel.
Pressure and vacuum protection levels are usually controlled with weighted pallets and can be combined to meet the required settings. This valve must be used in accordance with the American Petroleum Institute’s API standard 2000 for venting atmospheric and low pressure storage tanks.
Butterfly valves
A quarter-turn rotational motion valve, the butterfly valves is used to stop, start and regulate flow. Easy and fast to open, the valve usually comes equipt with a gearbox where the hand wheel by gear is connected to they stem.
This simplifies the operation of the valve, but at the expense of speed. These valves must also be installed a minimum of 6 pipe diameters away from other line elements.
As well as being lightweight, and quick to use, the butterfly valves are available in large sizes and can cope with low-pressure drop and high-pressure recovery.
Gate valves
Gate valves are primarily designed to start or stop a flow when a straight line flow of fluid and minimum flow restriction are needed. In service, these valves are pretty much kept either fully open, or fully closed.
When turned open, the disc of the gate is completely removed allowing contents to pass. Although this gives the valve good shut-off properties and is bidirectional, they cannot be quickly opened or closed and are sensitive to vibration when open.
Globe valves
Typically used for cooling water systems, transporting fuel oil and turbine lube oil systems, a globe valve is a linear motion valve used to stop, start and regulate flow.
Conventionally used for isolation and throttling services, the globe has become the world’s most common types of valves. With a good shut off ability, available in tee, wye and angle patterns and easy to machine the valve seats – its easy to see why they are so popular.
The slight disadvantages of the globe are that they perform unfavourably when high pressure drops, and require greater force or throttling flow under the seat to shut off valve.
ORBIT valves
Every ORBIT valve incorporates a tilt and turn operation that eliminates seal rubbing, which is a primary cause of valve failure. When an ORBIT valve is closed, the core is mechanically wedged tightly against the seat assuring a positive shut off.
When an ORBIT valve begins to open, the core tilts away from the seat and line flow passes around the core face. This eliminates localized high velocity flow that typically creates uneven seat wear and a reduced valve life.
Capable of working at -104 deg C to 427 deg C, the valve is used for hot oil systems and mole sieve dryers.
Plug valves
A plug valve uses a tapered or cylindrical plug to stop or start a flow. In open position, the plug-passage is in one line with the inlet and outlet ports. If the plugis rotated from the open position, the solid part of the plug blocks the port and stops the flow.
These are quick to turn off, smaller in size compared to most valves and has minimal resistance flow. However, they do have a reduced port due to tapered plugs and a requires a large force to actuate, due to high friction.
Pressure seal valves
Adopted for valves for high pressure service, pressure seal valves are typically used in excess of 170 bar. The unique feature about the pressure seal ‘bonnet’ is that the body’s joints seals improve as the internal pressure increases.
It should also be noted that these valves also come as a bolted bonnet too seal the valve and the pressure seal gasket.
Many more valves
Obviously there are many more types of valves that are used within the industry, but is important for any oil and gas engineer to know the basic valves, the principals, and what they should be used for. For source info. click here!
Below is our verified list of OILFIELD EQUIPMENT SUPPLIERS in Doha, Qatar!
API BOTTOM LOADING COUPLERS
API COUPLERS
API SPEC 10A
BOP (BLOWOUT PREVENTER) ACCUMULATOR UNITS
ESD VALVES
FRAC EQUIPMENT
GI
GRP
HMI SCADA
MCR
PIG SIGNALLERS
PVC
RO PLATES
RTDS
TRS
UPG SERIES
000 PSI INCLUDING STAND-MOUNTED CHART RECORDERS & HIGH PRESSURE HOSE ASSEMBLIES
000 TO 30
ACIDIZING
Activated Carbons
Active Carbon Supply & Services
ADJUSTABLE BAIL EXTENSIONS
Aeration Equipment For Treatment Plants
Agent / Stockist / Import And Supplier In Oil Field Materials / Valves /pipes & Fitting / Instruments / Drilling Equipment / Workshop Equipment & Consumables / Welding Equipment & Consumables / Safety & Protection Items
Agitators
Air Compressors & Ancillaries
Air Cooled Heat Exchangers
Air Driven Diaphragm / Piston Pumps For Handling Chemicals
AIR ELIMINATORS
AIR FLOW BURNERS
AIR FLOW SENSORS
Aluminium / Brass Alloys
Aluminium / Mild Steel / Ss / Welding Filler Materials
ALUMINIUM MANIFOLDS
Anchor / Swivel Flanges
ANCILLARY EQUIPMENT
ANTI - JAR HANDLING CLAMP
Api 6a
Api 6d Products (ball / Gate / Check / Globe Valves)
Auto Samplers
Automotive Oil Changers
AXIAL PYRO TORCH
Balancing Machines
BALL - TRUNNION MOUNTED / DBB
Ball / Gate / Globe / Check / Butterfly Valves
BALL VALVES
Bandlock 2
BAR STOCK
BASKET STRAINERS
BELLOW CYLINDER
Belt Dressing / Electra Clean Sprays
Belts
BI-COLOUR STEAM LEVEL GAUGES
BLENDERS
Blowers
BOILER DRUMS
BOLT PROTECTION CAPS
Bolt Tensioning Equipment
Bolt Tensioning Equipment & Services
Bolted Clamp Repairs
Bop Handling Systems
BOTTOM LOADING ARMS
BOW SPRING CENTRALIZER
Brackets
BRIDGE PLUGS
Bronze Round Bars
BUCKET STRAINERS
BUCKING MACHINES
BUILT UP THERMO WELLS
Burner Management Systems
BURNER SPARES
BURNERS
Bursting Discs
Butt Welded Fittings
BUTTERFLY VALVES
Buttweld Fittings
BYPASS CHAMBERS
Cable Trays / Cable Ladders / Cable Trunkings / Conduits / Cable Baskets & Grp Trays
Cables
CALIBRATION
Calibration Equipment
CARBON STEEL
CASING
CASING ACCESSORIES
CASING CEMENT BREAKER
CASING CUTTING
CASING RECOVERY
CASING RUNNING SOLUTIONS
CASING RUNNING TOOLS
Casings & Tubings
CAT-CUSHIONING ADJUSTMENT TOOL
CEMENT RETAINERS & COMPLETION ACCESSORIES
CEMENTING
CEMENTING & WORK OVER EQUIPMENT
CEMENTING EQUIPMENT
CEMENTING HEAD
CEMENTING PLUGS
CEMENTING PRODUCTS
CENTRALIZERS
Centrifugal Liquid Filtration Systems
Certification / Classification / Inspection Services
Chain Slings
CHECK
CHECK VALVES
CHECK-CHOKE VALVE
CHEMICAL ADDITIVE SYSTEMS
CHEMICAL GLOVES
Chemical Injection Skids
Chemical Injection Systems
Chemical Seals
Chilled Water / Plumbing Pumps
CHOKE & KILL LINES
CHOKE & KILL MANIFOLDS & WELL CLEAN OPERATIONS
CHOKE/KILL/STANDPIPE/DISCHARGE MANIFOLDS
CHRISTMAS TREES & ANY OTHER TYPE OF EQUIPMENT REQUIRING HIGH PRESSURE STATIC TESTING
Circlips
CLAMP ON CENTRALIZERS
CLASS - G (HSR) & CLASS - A (O) IN ACCORDANCE WITH - API SPEC 10A
CLASS - G (HSR) & CLASS - A (O) IN ACCORDANCE WITH - API SPEC 10A
OIL WELL CEMENT
CLASS G CEMENT
CLASS A (O)
CLASS G (HSR)
CLASS G CEMENT
Coal Chemical Industry
COIL TUBING UNITS
COILED TUBING
Cold Joining Of Pipes / Flanges Without Welding
Column / Tower Internals
Columns
COLUMNS & REACTORS
COMMERCIAL AND INDUSTRIAL / PROCESS APPLICATIONS FROM 10KW TO 30MW
COMMERCIAL FLIGHT SAFE
COMPACT BURNERS
Complete Heat Tracing Solution
COMPLETION TOOLS - OPEN HOLE PACKERS
Completions
COMPONENTS FOR OIL HYDRAULIC AUTOMATION
COMPREHENSIVE RANGE OF GAS
COMPRESSED AIR TUBING
Compression Fittings
COMPRESSIVE STRENGTH DATA (PSI)
COMPRESSOR & ANTISURGE CONTROL SYSTEMS
COMPRESSOR CONTROL SYSTEMS
COMPRESSOR SKIDS
Compressors
CONDENSATE PUMPS
Condensers
CONICAL STRAINERS
Connectors & Accessories
CONSOLE
CONSULTING SERVICES
Continuous Amine Reclamation Systems
CONTINUOUS EMISSION MONITORING SYSTEMS (CEMS)
CONTROL LINE CLAMPS
CONTROL SYSTEMS
Convection / Radiant Coils & Sections
CONVERTERS
COOLERS
CORIOLIS MASS FLOW METERS
CORROSION COUPONS
COUPLINGS
Cpvc Pipes
CRIMP ON CENTRALIZERS
CROSSOVERS
Cryogenic Valves
Cs / Ss / Alloy Steel Pipes & Fittings
Cs / Ss Butt Weld Fittings
Cs / Ss Pipes & Fittings
CUSTOM LOADING ARMS
CUT RESISTANT GLOVES
DATA HEADERS
DATA VANS
DEHUMIDIFIERS
DEMISTERS
DENSYL TAPES
Deodorizer Units
Design / Manufacture / Supply Of Heat Exchangers For Oil & Gas Industries
DIAPHRAGM SEALS
Direct Fired Heaters
DISTRIBUTION MANIFOLDS
DOMESTIC & COMMERCIAL FLUE SYSTEMS
Door Closures
DOSING TANK SKIDS
DOUBLE BLOCK AND BLEED VALVES
Double Compration Gland
Down Hole Calipers
Down Hole Electronic Gauges
DOWN HOLE TOOLS
DOWN HOLE TOOLS & HANDLING EQUIPMENT
Down The Hole Drilling Tools
DOWNHOLE GAUGES
Drainage / Sewage / Dewatering Pumps
Drier Packages
DRILL BITS
DRILL COLLARS
DRILL PIPE
Drill Pipe Dope
DRILL PIPE SWIVEL
Drill Stem Subs
Drill Through Equipment
DRILLABLE TURBINE
DRILLING
DRILLING OPERATIONS
DRILLING RENTAL EQUIPMENT
Dry Ice Blasting Machines
Dual Media Filters For Oily / Effluent / Ground Water Treatment
Duct Burners
Duct Tapes
DUOBLOCK BURNERS
DUST MONITORING SYSTEMS
E & I CABLES
ELECTRICAL CONNECTORS
Electrical Heaters
ELECTROMAGNETIC FLOW METERS
ELECTRONIC RACK EQUIPMENT
Engine Exhausts
Engineering Expansion Joints
Equipment For The Oil & Gas Industry Using Api 6a / Api 6d For Main Application In Petrochemical
Etc
E-TRACTOR
Expansion Joints
Expansion Tanks
EXPLOSION PROOF MOBILES
EXPLOSION PROOF TORCHES / FLASH LIGHTS
Extruded Headers
Fans
Fasteners
FASTENERS & GASKETS
FIELDBUS CONNECTIONS
FILTERS
Filters For Heat Exchangers
Filtration For Oil & Gas Industry / Water Technologies
FILTRATION SYSTEMS
Fin Fan Air Coolers
Fin Tubes
Fired Process / Heat Oil / Thermal Oxidizer Water Bath Heaters
FISHING & RE - ENTRY
Fishing Tools
FITTINGS
FITTINGS & FLANGES
FITTINGS WITH TUBE NUTS
Flame Arrestor
Flame Arrestors
FLAME RODS
FLAMMABLE CABINETS
FLANGE ADAPTORS & COUPLINGS
Flanged Electric Heaters
Flanges
Flanges & Cs & Ss Fittings
Flanges And Fittings
Flares
Find below a list of the top
Oilfield Equipment Suppliers in Doha, Qatar:
- ALPHA Q OIL INDUSTRY SUPPLIES & SERVICES (ALPHA ENERGY)
Location: BLDG 273, ST 230, ZONE 41, C RING RD, NUAIJA,Phone: 44360084Timings:7.00AM-4.00PM : SUN - THURKey Personnel:ALEX VARGHESE/BR MNGRSAMER KABBARA/B D / ADMIN MNGR - AXIOM INTERNATIONAL WLL
Location: OFFICE 25, 1ST FLR, BLDG 200, ST 995, AL MAMOURA PLAZA, ABU HAMOUR ( H O ); G W C WAREHOUSE BI A-5 / 37, LOGISTIC PARK C, AL WUKHAIR ( WAREHOUSE); 70 HARCOURT GARDENS, BATH, BA1 4DL, U K ( OVERSEAS OFFICE ),Phone: 44506186 - H O;44509325 - WAREHOUSETimings:8.00AM-6.00PMKey Personnel:MANIKANTAN A P/M DABHINAV MANIKANTAN/DIRECTORSURESH BHAT/MKTG MNGRRAJENDRAN THOTTATHIL/MNGR - STRATEGY / BUSI DEV - DOHA ENGINEERING SERVICES CO WLL (DESCO)
Location: OFFICE C-103, 1ST FLR, BLDG 55, SAYER BLOCK, BARWA COMM AVE, INDL AREA,Phone: 44363985Timings:Key Personnel:CHRISTO FRANCIS/SALES MNGR - DOHA PROJECT TRADING & SERVICES WLL
Location: OFFICE C -104, BLDG 55, SAYER - 5, BARWA COMM AVENUE, INDL AREA,Phone: 40052777Timings:7.30AM-5.00PM
Key Personnel:S S MOORTHY/BUSI DEV MNGRNABIN PAUDEL/SR SALES EXEC - MATTEO TRADING WLL
Location: OFFICE 10, 4TH FLR, BLDG 38, ZONE 24, ST 840, CONCORD BUSI CENTRE, AL MUNTAZAH,Phone: 44515951;30669088 - MOBILETimings:7.30AM-4.30PM : SUN - WED; 7.30AM-1.00PM : THUR / SAT Key Personnel:SONI OOMMEN/MNGRANOOP MATHEW/MNGR - PETRO-Q ( PETROFAC QATAR WLL )
Location: PETRO - Q BLDG, C RING RD,Phone: 40338888Timings:8.00AM-5.30PMKey Personnel:Rony Paul Thekkanath/C E OKARTHIK RAMAIAH/G M - QATAR TEC WLL
Location: OFFICE 29, AL MAMOURA PLAZA, ABU HAMOUR,Phone: 44516284;44516274Timings:8.00AM-5.30PM ( OFFICE ); 7.30AM-7.00PM ( SHOWROOM )Key Personnel:BINU KURIAKOSE/MNGR - OPSJOBY K JOHN/MNGR - SALES - SUPREME SUPPLY & SERVICES
Location: OFFICE B-248, 2ND FLR, BLDG 43, ST 100, ZONE 56, AL NAYEEF SOUQ, AIN KHALED ( OFFICE ); SOUQ AL BUZWAIR, OPP B M W, SALWA IND AREA ( SHOWROOM ),Phone: 44688278Timings:8.00AM-5.00PMKey Personnel:Praveen Kumar /G M - VENTURE GLOBAL WLL
Location: OFFICE C - 203, 2ND FLR, BLOCK 52, SAYER, BARWA COMM AVENUE, NR INDL AREA,Phone: 40054244;40054245;40054260;40054261Timings:8.00AM-6.00PM : SUN - THUR;8.00AM-4.00PM : SATKey Personnel:CHANDRAN/HEAD SALES - INFRASHEKHAR DESPANDE/HEAD SALES - ELECLESLIE SUNGA/SALES SUPPORT EXEC - SUPREME SUPPLY & SERVICES
Location: OFFICE B-248, 2ND FLR, BLDG 43, ST 100, ZONE 56, AL NAYEEF SOUQ, AIN KHALED ( OFFICE ); SOUQ AL BUZWAIR, OPP B M W, SALWA IND AREA ( SHOWROOM ),
Phone: 44688278
Timings:8.00AM-5.00PM
Key Personnel:Praveen Kumar , G M
- ALPHA Q OIL INDUSTRY SUPPLIES & SERVICES (ALPHA ENERGY)
Location: BLDG 273, ST 230, ZONE 41, C RING RD, NUAIJA,
Phone: 44360084
Timings:7.00AM-4.00PM : SUN - THUR
Key Personnel:ALEX VARGHESE, BR MNGR
SAMER KABBARA, B D / ADMIN MNGR
- ANSHORE TRADING
Location: OFFICE R-20, 3RD FLR, GLOBAL BUSI CENTRE, C RING RD,
Phone: 44023997
Timings:8.00AM-6.00PM
Key Personnel:THAJU MON, MNGR
- DOHA ENGINEERING SERVICES CO WLL (DESCO)
Location: OFFICE C-103, 1ST FLR, BLDG 55, SAYER BLOCK, BARWA COMM AVE, INDL AREA,
Phone: 44363985
Timings:
Key Personnel:CHRISTO FRANCIS, SALES MNGR
- SOLARLINE TRADING & LOGISTICS WLL
Location: OFFICE 3, ABDULLAH BIN THANI BLDG - 5, NR V I P R / A,
Phone: 44622070
Timings:8.00AM-6.00PM
Key Personnel:SHALIN, TRADING
HAFIS, LOGISTICS
- BETTER SAFETY TRADING CONTRACTING & DECORATION WLL
Location: SHOP 80, BLOCK 25, SAYER, BARWA COMM AVENUE, INDL AREA,
Phone: 44722499
Timings:8.00AM-6.00PM
Key Personnel:SOORAJ MENON, G M
MUHAMMED RAHIL, DIR - IMPORT / EXPORT
MUHAMMAD DILIP , CORP SALES HEAD
- MATTEO TRADING WLL
Location: OFFICE 10, 4TH FLR, BLDG 38, ZONE 24, ST 840, CONCORD BUSI CENTRE, AL MUNTAZAH,
Phone: 44515951;30669088 - MOBILE
Timings:7.30AM-4.30PM : SUN - WED; 7.30AM-1.00PM : THUR / SAT
Key Personnel:SONI OOMMEN, MNGR
ANOOP MATHEW, MNGR
- ORIENTAL TRADING CO LTD
Location: 1ST FLR, E - BLOCK, AL WAAB CITY, SALWA RD,
Phone: 44466333
Timings:7.30AM-5.00PM : SUN - THUR
Key Personnel:V S Narayanan , Mng Dir
V M Mathew , Fin Mngr
MURUGAVEL , G M - SALES
KRISHNAKUMAR, G M - SERVICE
Sunil B K , Mktg Mngr
Rajeev Menon , Comm Mngr
RAJAGOPAL, DIV MNGR - PLANT HIRE
- WIPRO INTERNATIONAL TRADING
Location: SHOP 1, BDLG 14, ST 980, ZONE 26, BESIDE SOUQ AL HARAJ, NAJMA,
Phone: 40015953
Timings:8.00AM-8.00PM
Key Personnel:QAIZAR HUSSEIN , G M
ABDUL KADER, SALES MNGR
ZAKIR, SALES
HUSEFA, SALES
HUSSIEN, SALES
- FK TOOLS
Location: SHOP 25, BLDG 7, BARWA VILLAGE, AL WAKRAH ( SHOWROOM ); WAREHOUSE A4, NR LOGISTICS VILLAGE, ABA SALIL ( H O ),
Phone: 44919599 - SHOWROOM;40363777 - H O
Timings:7.00AM-5.00PM
Key Personnel:VISHNU GOPAL, COUNTRY SALES MNGR
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OIL & GASFIELD EQUIPMENT
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Oil & Gasfield Equipment in Doha, Qatar:
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