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Oil & Gas » Valves, Pipes & Tubing

Sana International handles a wide range of brands and equipment for Petrochemical Industries.

 

We can supply the following Valves:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Generic Type Valves

 

Ball Valve. Which is good for on/off control.

 

Butterfly Valve. Particularly in large pipes.

 

 

 

 

 

 

 

 

 

 

STEMS

 

Upper stems are flatted for positive drive and for easy installation of handles and actuators. Retained by tangential pins, upper and lower stems are blowout proof for safety when handles or actuators are removed from the valve top.

 

FLANGE SEALS

 

The TEXDRILL Butterfly Valve seat is constructed by bonding a resilient elastomer to a rigid back-up ring, which forms the outside periphery of the seat. Slip fitted in the valve body, the seat is field replaceable without special tools. In the closed position, the disc rim stem seal boss an uninterrupted line of sealing contact with the resilient seat, to assure drop tight sealing at rated shutoff pressure. TEXDRILL seats are offered in a wide range of materials.

 

STEM JOURNAL

 

Two self-lubricating bronze bearings reduce torsional friction, eliminate galling and seizing of the stem, while supporting the stem against side loading from pressure on the closed disc. TEXDRILL places one bearing at the base of the ribbed body.

 

DISC

 

TEXDRILL Butterfly Valve discs and seat are configured for low pressure drop and high flow coefficients. Full radius polished edges slide into drop tight seat engagement with little turning effort.

 

SEAT

 

The TEXDRILL Butterfly Valve seat is constructed by bonding a resilient elastomer to a rigid back-up ring, which forms the outside periphery of the seat. Slip fitted in the valve body, the seat is field replaceable without special tools. In the closed position, the disc rim stem seal boss an uninterrupted line of sealing contact with the resilient seat, to assure drop tight sealing at rated shutoff pressure. TEXDRILL seats are offered in a wide range of materials.

 

STEM SEALS

 

The stem holes in the disc are surrounded by an annular raised boss which causes position seal every orientation of the disc. The resilient seat presses back with a higher specific force than the line pressure, preventing leakage the stem.

 

In competitive stem seal designs with boot seats, a seal is accomplished by an interference squeezing of the stem, or an o-ring in the stem journal. The potential for leakage behind the seat is high. As the disc wipes the seat, elongation of the stem seal area allows leakage to collect behind the seat. This condition is eliminated by TEXDRILL dry stem journal and hard-backed seat.

 

DISC DRIVE

 

Proper orientation of the stem/disc connection is assured by the rectangular drive. The disc is permitted to float on the stem to perfectly center in the valve seat.

 

BODY

 

One piece bodies are ribbed to assure high strength and minimum weight. Bodies are cast in both wafer and tapped-lug patterns, in a wide variety of material choices, to meet virtually every installation requirement. Body rating is ANSI Class 150 (285 psi non-shock). Wafer body diameters are designed to self-center in ANSI 150 flange patterns.

 

Choke Valve. A valve that lifts up and down a solid cylinder which is placed around or inside another cylinder which has holes or slots.

 

Check Valve or Non-return Valve. Allows the fluid to pass in one direction only.

 

Diaphragm Valve. A sanitary valve predominantly used in the pharmaceutical industry.

 

Gate Valve. Mainly for on/off control.

 

 

 

 

 

 

 

 

 

 

The TEXDRILL DM style Gate Valve, with superior design features precision workmanship and a proven principle are engineered to meet the harsh drilling requirements in today oilfield.

 

The TEXDRILL Valve conforms to the standard flange dimensions and pressure rating of 3000 and 5000 PSI working pressure and temperature service up to 400°F.

 

The TEXDRILL Valve standard trim includes 316SS Gates and Buna N seats, optional trims are available which include Ni Plated Carbon Steel, Monel and Aluminum Bronze gates. Seats are offered in Viton and Hypalon optional 303SS Stem is available.

 

Construction

 

All the TEXDRILL Valve conforms to API flange dimensions in all pressure class ratings. The valves have rising stems that are driven by a double threaded hub for quick opening and closing with minimum turning effort. The permanently lubricated stems and stem screws are fully sealed assembly consisting of homogenous and fabric backed rings for high and low pressure sealings.

 

Applications

 

   Drilling and well-treating chemicals

   Sour gas and crude oil

   Abrasive drilling mud

   Pipelines and manifolds

   Wellheads

   Water, oil and gas lines

   Cements and slurries

   Corrosive water flood lines

   Fahrenheit services

 

Seat Elastomers

 

Buna N (nitrile) is the basic seat elastomer. It is excellent for petroleum oil and gases, fuel oils and alcohols from-10° F to +200°F. Hypalon is optionally offered compounded for maximum chemical resistance. Particularly suited for oxidizing acids and hydrocarbons and resists moderate concentrations of hydrogen sulphide. Serviceable from-10°F to+400°F.

 

PLASTIC COATINGS

 

Internally plastic-coated valve bodies and bonnet are available on request.

 

TESTING

 

TEXDRILL Gate Valves are hydrostatically tested at assembly. Stem seal, body and seat are inspected for zero leakage under pressure, before acceptance.

 

PRESSURE RATINGS

 

MKP Gate Valves are designed for the maximum working pressure and test pressure tabulated below:

 

ORDERING INFORMATION

 

Provide size, pressure and end connection. Specify pressure class of flanged ends and raised face or RTJ. For threaded ends, give line pipe, NUE (non upset tubing) or EUE (external upset tubing). For weld or grooved ends, provide schedule of mating pipe.

 

Globe Valve. Which is good for regulating flow.

 

Needle Valve. For gently releasing high pressures.

 

Piston Valve

 

Plug valve, for on/off control.

 

Specific Valve Types

 

4-stroke Cycle Engine Valves. A application of piston valve.

 

Aspin Valve. A cone-shaped metal part fitted to the cylinder head of an engine.

 

Ball Cock. Often used as a water level controller (cistern).

 

Bibcock. Provides a connection to a flexible hosepipe.

 

Blast Valve. Used to prevent rapid overpressures in a fallout shelter or a bunker.

 

Cock. Colloquial term for a small valve or a stopcock.

 

Demand Valve. On a diving regulator.

 

Double check valve

 

Duckbill Valve

 

Flow Control Valve. A application which maintains a constant flow rate through the valve.

 

Foot Valve. A check valve on the foot of a suction line to prevent backflow.

 

Freeze Valve. In which freezing and melting the fluid creates and removes a plug of frozen material acting as the valve.

 

Gas Pressure Regulator. Regulates the flow and pressure of a gas.

 

Heart Valve. Regulates blood flow through the heart in many organisms.

 

Leaf Valve. One-way valve consisting of a diagonal obstruction with an opening covered by a hinged flap.

 

Pilot Valve. Regulate flow or pressure to other valves.

 

A Poppet Valve. Is commonly used in piston engines to regulate the fuel mixture intake and exhaust. The sleeve valve is another valve type used for this purpose.

 

A Pressure Reducing Valve. (PRV) Also called pressure regulator, reduces pressure to a preset level downstream of the valve.

 

A Pressure Sustaining Valve. Also called back-pressure regulator, maintains pressure at a preset level upstream of the valve.

 

Presta and Schrader Valves. Are used to hold the air in bicycle tires.

 

A Reed Valve. Consists of two or more flexible materials pressed together along much of their length, but with the influx area open to allow one-way flow, much like a heart valve.

 

A Regulator. Is used in SCUBA diving equipment and in gas cooking equipment to reduce the high pressure gas supply to a lower working pressure.

 

Rotary Valves and Piston Valves. Are parts of brass instruments used to change their pitch.

 

A Saddle Valve. Where allowed, is used to tap a pipe for a low-flow need.

 

A Safety Valve or Relief Valve. Operates automatically at a set differential pressure to correct a potentially dangerous situation, typically over-pressure.

 

Schrader Valves. Are used to hold the air inside automobile tires.

 

Pipe & Tubing

 

Manufacture

 

There are three processes for metallic pipe manufacture. Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. Seamless pipe provides the most reliable pressure retaining characteristics, and is often more easily available than welded pipe. Welded pipe is formed by rolling plate and welding the seam. The weld flash can be removed from the outside or inside surfaces using a scarfing blade. The weld zone can also be heat treated, so the seam is less visible. Welded pipe often has tighter dimensional tolerances than seamless, and can be cheaper if manufactured in the same quantities. Cast pipe is no longer very common, but still exists. Pipe is sometimes cast in a centrifuge.

 

Tubing, either metal or plastic, is generally extruded.

 

 

 

 

 

 

 

 

 

 

 

SANA International offers drill pipe, drill collars and heavy weight drill pipe to the clients world-wide.

 

TEXDRILL's drill pipe is manufactured in accordance with API Spec 5D and Spec 7. The chemical composition of the steel is properly designed and strictly controlled. TEXDRILL's drill pipe features low sulphur and phosphorus content with high machining precision of pipe body and thread, finishing surface, good mechanical properties and low-temperature toughness.

 

Our product line includes drill pipe, heavy weight drill pipe sizing from 2-3/8” to 5-1/2” in grade E75 to S135. We also manufacture heavy upset premium and API tubing ranging from 2-3/8" to 4-1/2" in grade J55 to P110. Our manufacturing facilities employ a complete quality control system to guarantee our products to meet or exceed API standards and customer's expectations.

 

USED DRILL PIPE ALSO AVAILABLE!!!

 

Materials

 

The manufacturing of pipe uses many materials including ceramic, metal, concrete, and plastic.

 

Metal pipes are commonly made from unfinished, black (lacquer), or galvanized steel, brass, and ductile iron. Copper tubing is popular for plumbing systems.

 

Plastic tubing is widely used for its light weight, chemical resistance, non-corrosive properties, and ease of making connections. Plastic materials include polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polyethylene (PE), cross-linked high-density polyethylene (PEX), polybutylene (PB), and acrylonitrile butadiene styrene (ABS), for example.

 

Pipe may also be made from concrete or ceramic. These pipes are usually used for low pressure applications such as gravity flow or drainage.

 

Concrete pressure pipe for water lines can be made in accordance with American Water Works Association ([1]) standards of C-303 or L-301. C-303 pipe has a round bar helically wound around the steel cylinder and all surfaces are then coated with cement mortar. C-301 is a prestressed pipe and is made using two different techniques. The first method has a steel cylinder which has been lined with concrete and after the concrete cures the prestressing wire is wound directly on the steel cylinder and the exterior is then coated with cement mortar. The second method encases the steel cylinder in concrete which is then prestessed after the concrete cures and the exterior is then coated with cement mortar. C-303 pipe can be manufactured in from 10" through 72" and C-301 goes from 36" through 144". Working pressure is generally less than 300 psi.

 

Reinforced concrete can be used for large diameter concrete pipes. This pipe material can be used in many types of construction and is often used in the transport of storm water. Usually such pipe will have a receiving bell or a stepped fitting, with various sealing methods applied at installation.

 

Uses

 

   Domestic water systems.

   Pipelines containing high pressure gas or fluid.

   Scaffolding.

   Structural steel.

   Casing for concrete pilings used in construction projects.

   High temperature or pressure manufacturing processes.

   The petroleum industry:

       Oil well casing.

       Oil refinery equipment.

       The construction of high pressure storage vessels.