In 1948, a new company called Oteco appeared in American Houston, Texas. Initially, it was engaged in the supply of special materials and equipment to oil fields. The products were in demand as there was an active development of wells in this area, and Oteco offered reliable and high-quality products. Gradually, the company began to combine trading activities with production, its goods were supplied not only to companies operating in the state, but also to international stores and consumers in other countries.
The company is a manufacturer of equipment for the oil and gas industry

gate valve; Safety valves for pumps; Spare parts for drilling pumping equipment of hydraulic type; pressure gauges; Units and related products for drilling rigs; rubber products;

The company’s products meet all modern requirements and standards, and are widely used in the field of oil production. Over the years of its work, Oteco has earned a reputation as a partner you can trust, has become one of the leaders in its segment.

Oteco Model 72 valves are standard and are available in 2, 3, 4 and 5 inch versions. Parts are rated for 2000, 3000, 5000 psi. Can be used over a wide temperature range: -20°C to +250°F (-21+150°C)

Gate valves are designed specifically for equipment that is used in oil fields. Parts have several features that distinguish them from many analogues:
  • The use of Body Subs technology makes it possible to replace valve connections without changing their design;
  • Forged plug and stem are fully raised, which allows you to accurately assess the current position of the valve: open, closed, partially open;
  • Large ball bearings, reinforced stem threads significantly reduce the amount of torque required to operate the valve;
  • High-quality stuffing box seals and a reliable plate prevent damage to the valve body during numerous openings and closings;
  • The valve is equipped with seals suitable for working with various liquid media;
  • The interchangeability of valve parts with Cameron Type S Flex-Seal valve components makes the system more versatile.

The Oteco range includes overhaul kits, minor repairs, individual parts. The Model 72 valve provides maximum reliability and flexibility for waterflooding, wellhead, crude oil and sour gas applications.

Additional advantages of the products are long service life, resistance to corrosion and other external influences, and ease of use. All valves undergo rigorous quality control at Oteco’s Houston facility.

Gate valves Oteco model DM
Oteco DM Style valves are available in 2", 3", 4" and 5" sizes. Products are designed to work under pressure of 2000, 3000, 5000, 7500 psi.

They are used in pipelines, X-mas trees, blowout prevention equipment, including those under high pressure. The main purpose of the gate valves is to completely block the flow of the working medium, for example, coming from the wells of the fields.

Products are able to perform their functions in the temperature range from -28.89°C to 121.111°C, threaded or butt, as well as flange connections are used for connection. This series of valves includes models with standard trim, sour gas trim and 90 hardness basic seals.

The Oteco DM series includes low cost high quality products. Gate valves can be used in pipelines where the working medium is oil, gas or water. Due to the use as a material for the manufacture of high-strength weldable alloys, it is easy to repair directly on the line.

The design features of the Oteco DM Style series valves provide a number of advantages:
  • Extended stud thread connection on body;
  • Resistance of the stem and valve to corrosion;
  • High reliability, thanks to inserts made of durable steel;
  • Accurate landing tolerance indicators;
  • Possibility of use for various gases.


Oteco DM gate valves are a guarantee of easy operation, long service life, and, if necessary, quick and inexpensive replacement. Such products are used in well drilling equipment, flood control systems, in complexes for processing petroleum gas, crude oil, as well as in wastewater discharge wells in industrial facilities.

Oteco float valves

Oteco manufactures float type valves as well as baffles that are used in drill pipes. The parts have a one-piece body design and are of high quality.

Bodies of Oteco float valves are made of high strength cast iron or low alloy type carbon steel. All parts are heat treated to achieve the required level of hardness and eliminate corrosive attack. Integral hulls are made using a one-piece casting method without welding. This improves their reliability.


Oteco float valves are available in several versions:



Float valve sizes range from 1−21/32 to 5−11/16 inches. The part can be used from 0°F to 450°F.
Plunger valves are made from a single piece of metal to reduce the risk of part failure downhole. The dampers are hardened to improve wear resistance. All valves are equipped with Inconel® springs prepared for gas service. Oteco Drill Pipe Float Valves are built to industry standard dimensions for interchangeability with other parts.

Oteco pistons

Oteco pistons are made from polyurethane using innovative technology. The special design and modern materials can significantly increase the service life of three-cylinder mud pumps.
The advantages of Oteco pistons are:
  • High density polyurethane construction;
  • Good resistance to abrasives and various liquids;
  • Ability to use in difficult drilling conditions;
  • Increased resistance to chemicals, drilling oils;
  • Multi-layer base reinforced with fabric;
  • High quality seals;
  • Tensile strength, abrasion.
Polyurethane pistons clean the pipeline cavity from hard and soft deposits, rust, debris and other contaminants. In the process of using oil pipelines, scale can form inside, deposits are formed that prevent the normal patency of the pipe. In addition, temperature fluctuation contributes to the formation of condensate, which increases the risk of corrosion and negative impact on the transported raw materials.

Oteco pistons provide cleaning during work related to purging and flushing of pipelines equipped with shut-off valves, construction or conservation of lines with an equal cross section inside. Pistons are also used as part of hydraulic testing of pipelines, including those with a complex profile, to remove fluid after such tests. Such components are designed to displace oil products or oil from the pipeline, if necessary, to separate different types of working fluids during their sequential movement through the pipeline.

Another plus of Oteco pistons is their interchangeability with components from other manufacturers. This effect is achieved due to the observance of all applicable standards in the production of this type of product.

Oteco stem valves and seats

Oteco makes several types of premium stem valves and seats.

For products with stem guides, the following features are characteristic:
  • Wide metal seal on the valve flange;
  • Ribbed top texture for maximum airtight seal between body and insert
  • Rigid crossbars for increased strength;
  • Large valve nut that allows you to tightly fix the insert, reduce bending;
  • Low risk of foreign objects getting into the space between the insert and the valve.

Premium valves and seat guides are light weight, making them stand out from their peers. Such products are in demand due to the optimal combination of price and quality.


Oteco’s premium product category also includes vane guide valves and fully open seats. Such components provide the passage of a significant flow of fluid.


In addition, the fully open seat design greatly simplifies the process of servicing the valve as well as pulling it out at the hydraulic ends. In the manufacture of parts, an innovative Unibody design is used, which does not provide for the presence of holders, plates, retaining rings. This makes it possible to reduce maintenance volumes.


Due to the design features, the products cope with circulation losses better than similar products from other manufacturers with a traditional device. Another advantage of the products is the optimal landing angle to improve the flow characteristics. Stress resistance extends valve and seat life.

Connectors



The functional purpose of the Oteco connector is similar to the high pressure flange assembly. The hub element is equivalent to a flange, the clamps are analogues of the flange bolts, the o-ring helps to maintain pressure. These connectors are used even in the most difficult environments, such as when there is a corrosive or dangerous liquid in the system, at elevated or cryogenic temperatures.


Connector sizes vary from 1 to 12 inches, allowing you to choose the right option for systems of any configuration. Products are used in highways where the working medium is sour or ordinary gas. Their use is justified in situations where parts of a certain size and minimum weight are needed.

The features of the Oteco connector are:
  • Wide model range;
  • Less weight and size compared to standard flange connection;
  • Minimum assembly and disassembly time of the assembly;
  • Affordable cost;
  • Accuracy of manufacturing components;
  • Using only certified materials;
  • Interchangeable with Greylock connectors

The advantages of the connectors are the high quality of the seal, which is activated mechanically and under pressure. The stronger the pressure, the stronger the sealing surfaces will be pressed against each other. The metal seal can be reused when reinstalling the connector.

Oteco connectors are available in carbon steel or stainless steel. Installation requires two clips, four studs. The quality of the products is confirmed by the results of certification, numerous industrial tests, as well as the experience of use by companies around the world.

Oteco impact pads

Oteco impact pads are used in offshore drilling rigs. They are made from a special rubber molded between steel sheets with increased corrosion resistance.

The main function of shock pads is to provide cushioning. Each product is load tested to ensure reliability and long service life. The main feature of such products is custom-made production. This means that the customer chooses the material and dimensions according to his needs.


Oteco dampers:
  • Reduce the shock load on the units and components of drilling equipment;
  • Allow to extend the life of the systems;
  • They are characterized by increased resistance to external factors, including humidity and temperature extremes;
  • Prevent deformation of aggregates;
  • Increase the period of operation of offshore installations without carrying out repair work.
  • Using only certified materials;
  • Interchangeable with Greylock connectors
Since shock absorbers are made to order, their parameters are best suited to the solution of specific tasks. Oteco guarantees the quality of each product, and also offers an affordable price, so the purchase of impact pads is profitable and economically justified.
Oteco pressure gauges
Oteco pressure gauges are equipped with a built-in damping mechanism to reduce wear and protect the instrument from mechanical stress, including shock. Due to the reinforced sealing elements, liquid does not penetrate into the measuring mechanism.
The measuring part of the device is surrounded by a special oil composition, which provides resistance to sudden temperature changes, extreme indicators, as well as shock and vibration loads. Additional safety is provided by a low pressure plug that protects the housing and lens from damage. All types of pressure gauges can be used in salt or ordinary water, as well as in a gas environment.

There are several varieties of Oteco manometers: models 6, 7, 8. They are designed to measure pressure in the range from 0 to 20,000 psi and are equipped with PSI dials showing the measurement results in kPa, Bar, kg / cm2. The instruments are suitable for use in temperatures from -20˚F to 180˚F and are threaded, flanged, or in-line. All devices are certified by the American Bureau of Shipping (ABS).
Каждая модификация манометра имеет свои особенности
  • Model 6
    • Locks in with standard end connection - 2" pipe threaded on the outside and 1" pipe threaded on the inside;
    • Measures pressure up to 20,000 psi;
    • Features a dial case 4-7/8" in diameter and 9-7/8" high;
    • Interchangeable with Cameron Type F, Totco Type 6, GeoSource Type F, Wadeco Model 10, and Gauges International Model 6.
  • Model 7
    • Secures with a standard 2-inch threaded pipe end connection;
    • Measures pressure up to 6000 psi;
    • Has a dial case 7-5/8" in diameter and 14-3/4" high;
    • Interchangeable with Cameron Type D, Totco Type 4, GeoSource Type D, Wadeco Model 12 and Gauges International Model 7
  • Model 8
    • Locks in with standard end connection - 2" pipe threaded on the outside and 1" pipe threaded on the inside;
    • Measures pressure up to 20,000 psi;
    • Has a dial case 8-1/8" in diameter and 13-1/4" high;
    • Equipped with an impact-resistant acrylic lens that protects the large 6-inch dial;
    • Available with two-unit dials.

Pressure relief valve Oteco PRV

The Oteco PRV Pressure Relief Valve is designed to protect slurry pumps, manifolds, and other expensive equipment used in drilling operations. The valve is shear type because it uses shear pins to relieve excess pressure, both in drilling and other operations.

The valve stem is made of hardened stainless steel, the same material used for the inserts. In this way, high resistance to corrosion is achieved, which means that the degree of reliability and service life of the valve increase.

Oteco PRV pressure relief valves are available in two sizes, 2" and 3". They can be used at pressures from 125 to 10,000 psi with a flow area of ​​1.3−4.2 square inches. The temperature range for use of the parts is -20°F to 250°F. The valve can be threaded, flanged or stud connected and can be used with aqueous, normal or sour gas.

The advantages of Oteco pressure relief valves are:
  • Existence on each valve of the table with the detailed specification;
  • Increased resistance to external factors, including moisture;
  • Interchangeability of components with Cameron valve parts;
  • Accuracy +- 10%.

Oteco offers kits for auxiliary or overhaul of the valve, spare parts for it. The protective cover can be easily removed so that shear pins can be replaced quickly and easily. The equipment is certified by Det Norske Veritas (DNV).

Oteco unloader valve

The Oteco relief valve is designed to protect slurry pumps and rig manifolds from damage and wear. The devices are equipped with a manual reset, Oteco or PRV reset mechanism. They ensure the safety of equipment operation and help to extend its service life.
The PRV unloader valve fully opens when the set pressure level is exceeded. In addition, it can be opened manually by pressing the shutter button. The position of the valve (open or closed) can be judged by the release button. PRV valves are equipped with a special indicator that allows you to adjust the pressure. It can be adjusted to any value within the operating range. To do this, turn the nut on the top of the device. Adjustment is carried out according to indicators in metric units.
The valve is available in 2" and 3" versions and operates from 125−10,000 psi. The part can be used in water and gas environments (regular or sour gas). Connections are flanged, threaded or spigot connections, operating temperature range is -20°F to 250°F.

The Oteco unloader valve has many advantages:

  • Vibration generated during operation of the equipment does not affect the reset pressure settings;
  • Stainless steel piston and sub cadmium plating ensure high corrosion resistance;
  • Shear pins are not required;
  • The cover closes completely, ensuring the preservation of the lubricating layer on moving elements and increasing the service life of the product;
  • The bonnet assembly is interchangeable with Cameron type A and B relief valves;
  • The accuracy is ±5%.

Oteco offers individual parts and kits for valve overhaul or refurbishment.

Oteco fittings

Fittings are components of pipeline systems that are used to connect the components of the pipeline to each other. In addition, they are used as connecting elements when connecting pipeline fittings, heat and liquid meters, as well as other devices for control and measurement.




Oteco produces ten varieties of fittings. Their size is 2, 3, 4 or 5 inches. Parts are rated for working pressures from 3,000 to 7,500 psi and allowable test pressures of 11,250 psi.

The range includes the following types of fittings:
  • Long squares 45;
  • Long squares 90;
  • Angle of rotation 90 with 2" outlet;
  • Stand with gooseneck 160;
  • 160 Top Exit Flexible Stand Riser Nozzle;
  • Riser type Gooseneck 180o;
  • Long boom Full Flow Cross;
  • T-fitting with extended sleeves;
  • Long fitting Sweep;
  • Long Y sweep.

A variety of models minimize flow resistance and reduce abrasion and washout. All types of fittings are available with in-line pipe threads or with end connections for welding schedule XX or 160. Elements with a special connection are available on request. Each product is of high quality, before shipping the company conducts hydrostatic testing of products to minimize the risk of leaks. If necessary, full certification can be obtained.

High pressure full flow fittings are made of carbon steel. This allows for high ductility and good weldability of parts.

Oteco Wireline Cable Products

Oteco Wireline cable products are return wire components and assemblies. Replacement rollers for Roliguide BJ are available. In addition, the product range includes complete rope guides, suspension units for guides, which are used in drilling rigs and angle towers. Products are available in several sizes: G10, G20, G102, BJ Roliguide.
Line guides are used to guide the running end of the line in a drilling rig. The item consists of:
  • roller;
  • Vala;
  • bearing;
  • Inner and outer bushings;
  • locknuts;
  • Limiter;
  • Pin.

The main task of the hoist rope damper is to eliminate vibration, which prevents the rope from being wound correctly on a special drum located on the main winch in the drilling rig. The part is installed on the running branch. This is a mandatory device for drilling operations. The damper is installed before the start of work.


Oteco cable products are of high quality and long service life. This is facilitated by the use of modern materials. Innovative production technologies, as well as a multi-stage quality control system for each product.

Mud and oil shields Oteco

Oteco mud and oil shields are designed to protect electronic devices and adapt the drilling process to difficult climatic conditions. The product range includes several options: MG500, MG600, MG800. These models vary in size. Mudguards are made of Nitrile (NBR), neoprene (CR). The products are suitable for pipelines with pipe sizes from 2−1/16 to 6−5/8.
When selecting shields to protect against contamination and oil ingress on the components of the installation, several nuances should be taken into account:
  • The MG600 measures 6' x 10−¾" and is suitable for 2−3/8" to 5−½" drill pipe;
  • The MG800 shields are 6ft x 16in, with a large cavity designed for pipe diameters from 2−3/8" to 6−5/8", i.e. processing of large volumes of linear liquids;
  • Both models are available with side and end seals if required, neoprene as standard, nitrile on request;
  • Oteco Oil Guard MG500 measures 4' x 6' and is designed for pipe sizes from 2−1/16" to 3−½".

Lack of mud and oil shields in drilling rigs leads to loss of drilling fluid. In addition, the frequency of equipment cleaning increases, and this requires additional labor costs. Dirt and oil on the floor of the drilling rig makes it slippery and can cause an accident.

Taking into account all these factors, the cost of operating drilling equipment increases markedly. Dirt and oil shields help solve these problems and reduce the cost of operating equipment, so investments in the purchase of such components are guaranteed to pay off.


Oteco circuit connectors

Chain connectors or chain connectors are designed to attach chains of various designs. They fit 1−¼" to 4" roller chains and come in three sizes: 1, 2 and 3.
Products differ in high reliability and an ergonomic design. A variety of chains are widely used in drilling equipment, for fixing which it is easiest to use special devices. Oteco chain connectors are just such elements: durable, with a guarantee of quality and a long service life. Due to the presence of several modifications, it is always possible to choose a product based on the technical parameters of drilling equipment.

Oteco rubber products

Oteco has its own fully equipped production facility where rubber products are cast. This allows you to control the quality of raw materials and exercise control at every stage of production, as well as offer consumers favorable prices.
Oteco rubber products meet the most stringent requirements, since oilfield operations are quite harsh conditions. The manufacturer develops his own recipe, carefully controls the process of mixing the components to obtain reliable and durable rubber products.

The range of Oteco rubber products includes:
  • Oil seals and seals for Hydril "GK", "MSP", Regan type "K";
  • Rubber parts for spherical Shaffer blowout preventers;
  • Replacement rubbers for Shaffer rotating heads;
  • Hinderliter pullers.
Products are made from natural (NR), nitrile (NBR) and neoprene (CR) rubber, each of which is carefully tested before shipment.

Natural NR rubber is used for the manufacture of gaskets in fixed joints, as well as other products. It is often used in the food industry. The material has an average degree of hardness and is resistant to temperature extremes.

NBR rubber is most often used for the manufacture of seals with a round section. Such products have increased resistance to swelling, therefore they are suitable for use in a humid environment. Many parts used in the oil industry are made from it. Additional advantages of the material are good oil and wear resistance, so this option is very relevant for drilling rigs.

CR rubber or neoprene is a universal type of synthetic rubber, resistant to oils and petroleum products, with low residual deformation, resistant to ozone, oxygen, ultraviolet, due to which it can be used for a long time in open areas, regardless of the climatic features of the area.

Oteco pipes and wipers

Oteco tubes and wipers are designed to remove dirt from glass surfaces. Dirt wipers are available in several versions: Single; Double; oval; manual
The distinguishing features of Oteco wipers are increased strength and long service life, as well as high efficiency.

Dual wipers are also available in several versions: solid and separate. Optionally, a separate double configuration with a roundabout is offered.

Products have high tear resistance, surpassing many analogues in this parameter. This effect is ensured by the presence of a reinforced metal insert and molding of elastic rubber.

Oteco Kelly windshield wipers are made from high quality rubber, which is also used to make pipe wipers. They can be used for square and hex blades. Windshield wipers are reinforced with a metal ring, this can significantly extend the life of the wipers and the drive bushing.

The wipers fit a variety of pipe sizes from 2-3/8" to 7", including blind designs. Nitrile, neoprene, natural rubber are used as materials for their manufacture. The range includes models in two colors: black and red, the latter option is oil resistant. This makes it possible to choose exactly those products that are best suited for use in specific conditions.

Rotating Blowout Preventers and Rubber Bands for Oteco Tube Puller

Oteco manufactures many modifications of rotating anti-blowout plates, rubber pipe pullers. The first category includes replacement parts for Shaffer Type 50, 74, 79, Lynn International, Shaffer 51 and Grant 7068.
Rubber bands for the tube puller are available in the following options:
  • Beaumont Iron Works PX-70 and PX-107
  • Cameron Petromec PC and QD
  • Giberson Type J2 and JU
  • Gulfco Type TT and S6
  • Hillerman Kelly Type HK
  • Hinderliter type SS, 4-S and 4-1
  • Hydril Type RS
  • Larkin Type K and SR
  • Norris Hinderliter 4-1
  • Oil center tool type J-1, JF-1, type T-16
  • Rector type R and type SS.

Oteco also sells replacement diaphragms and components for Hydril and Mattco 10 and 20 gallon pulsation dampers. Diaphragms are made by casting from one piece. They are offered in 1500-7500 psi ratings.

A metal insert is mounted in the lower part of the part. This prevents extrusion into the bottom flange type connection. In addition, the range includes stabilizers and plates, lock washers, gaskets.

Nitrile (NBR) and hydrogenated nitrile (HNBR) are used for the manufacture of parts. The first has a high resistance to the effects of petroleum products, so products from it are in demand in the field of oil production and refining. Rubber of this type has increased hardness and abrasion resistance, as well as a slight degree of swelling in mineral oils.

Hydrogenated nitrile is a type of synthetic polymer with increased heat resistance and resistance to chemicals. Additional advantages of this material are high mechanical strength, as well as tensile strength.

Oteco uses only high quality raw materials to manufacture products, which allows them to increase their service life and performance.

Oteco balance and retard belts

Oteco balance straps are required to keep the center latch lifts in position. This makes it easier to control the lifting process, as well as reduce staff fatigue.
A U-bolt is used to attach the balance strap to the desired link. On the other side of the belt there is a metal loop twisted in a special way. It is fixed to the handle of the lift.

Retard belts are used in combination with specialized equipment. The principle of their operation is similar to a rubber spring. This part allows you to move the tongs along the edge of the floor surface. To do this, one loop is fixed to the pin of the key line, and the other is attached by mooring in any suitable place. To obtain the desired effect, it is enough to slightly stretch the reverse mechanism.

Oteco balance and retard straps are available in 2−¾" and 3−½" sizes and can be used with loads up to 500 lbs. The products of this manufacturer are known not only for their high quality, but also for their affordable cost with a large selection of modifications and compliance with all applicable standards.