Manufacturing & Supply

Tubing accessories — every metre of run life matters.

The tubing string sees more wear than any other component in a rod or PCP well. Harden the surface, rotate the string, and supply the right couplings, crossovers, and pup joints — that's how we push run life from months into years at the Brazi Center of Excellence.

Boronized ID · 1,800 VickersTubing rotator S & XLAPI 8RD · EUE / NUEUp to 320 °F

Defeat wear at the surface.

Boronizing converts the tubing ID into an iron-boride layer an order of magnitude harder than the parent steel — without changing the API drift dimension.

Spread the load.

A tubing rotator adds 10 inches to the wellhead and turns the entire string slowly during operation — rod wear ends up distributed, not concentrated.

Fit the string correctly.

Couplings, crossovers, and pup joints are the unglamorous parts that make a string work. Sourced to API tolerance from stock or machined to order.

Engineering summaries

The cards below show key specs and the ratings that matter at selection. Full technical data sheets — materials, torque tables, drift dimensions — ship on request from every card.

Request all TDS

01 · Surface treatment

Harden the surface the pump runs against.

Rod-on-tubing wear, cavitation, and corrosive chemistry all start at the inner surface. Boronizing changes that surface from J55/L80 steel to a 1,800 Vickers iron boride layer — without changing the API drift ID.

Thermochemical wear protectionTDS-002-13

Boronized Tubing & Couplings

Boronizing diffuses boron into the surface of tubing, joints, and couplings to form an iron boride layer — extremely hard, low-friction, and resistant to wear, cavitation, and corrosive gas attack. Used where rod wear, high solids, or acid injections would cut run life on standard J55/L80 strings.

How it works

Parts are exposed to a thermochemical diffusion cycle that forms a hard iron boride layer on the ID, or on the ID + OD. Coefficient of friction drops sharply — less cavitation at the pump outlet, less wear from reciprocating rods, better protection against corrosive gas and acid injection chemistry.

Surface hardness

1800 Vickers

Layer thickness

25 – 150 μm (adjustable)

Coverage

ID only or ID + OD

ID tolerance

Unchanged (standard API drift)

Length capability

Small parts up to 45 ft joints

Applicable to

Pup joints, tubing, casing, accessories

Most commonly applied to the pup joints directly above the pump, where rod wear and cavitation first attack the string.

Summary only — full technical data sheet available on request.

Request full TDS

02 · Wellhead & string rotation

Rotate the string — wear every millimeter, not one line.

Tubing rotators spread rod-on-tubing wear across the full inner circumference, extending run life on deviated, directional, and older conventional wells alike. Retrofit in hours, essentially zero maintenance once running.

Distribute rod wear · prolong tubing lifeTDS-010-22

Tubing Rotator (S & XL)

Installed between the wellhead and the tubing hanger, the tubing rotator slowly rotates the entire tubing string so rod-on-tubing wear is spread over the full inner circumference instead of concentrating in one contact line. Effective on horizontal, directional, and slant wells — and retrofits older conventional completions with existing tubing heads.

How it works

Adds only 9 – 10½ in. of height to the wellhead. Acts as a fixed component — the BOP can be installed on top during servicing. The tubing hanger lands directly in the rotator spool, replacing the conventional hanger. Drive can be manual, pump-jack lever, or BPU (chain / cable) depending on the installed lift. A clutch-type torque limiter clicks when the string becomes stuck or sanded in, preventing over-torque without field resetting.

Retrofit

Any well with an existing tubing head

Compatibility

Reciprocating & rotating (PCP)

Torque limiter

Clutch-assembly · no reset

Maintenance

Minimum · field repairable

S (Standard) vs XL (Extraload)

Characteristic	S (Standard)	XL (Extraload)
Wellhead connection	7-1/16 · 9 · 11 in.	7-1/16 in. 2K R-45 · 3K R-45 · 5K R-46 · 10K BX-156
Top connection	7-1/16 · 9 · 11 in.	7-1/16 in. 2K R-45 · 3K R-45 · 5K R-46
Pressure rating	2,000 / 3,000 / 5,000 psi	2,000 / 3,000 / 5,000 psi
Tubing connections	2-3/8, 2-7/8, 3-1/2, 4-1/2 in. EUE	2-7/8, 3-1/2 in. EUE
Torque rating	2,400 ft-lbf	3,400 ft-lbf
Temperature rating	up to 180 °F (82 °C)	up to 320 °F (160 °C)
Max hanging load	128,000 lbs	160,000 lbf (custom / J-Latch)
Drive system	Manual · pump-jack lever	Manual hand-crank · BPU (chain / cable)

Constant movement of the tubing relative to the rod string also inhibits wax and solids build-up inside the tubing — a secondary but measurable benefit on paraffinic wells.

Summary only — full technical data sheet available on request.

Request full TDS

03 · Standards & fittings

The parts that make a string a string.

Couplings, crossovers, and pup joints are API-standard items — boring until one is wrong and the whole run is wasted. We supply to API 5B tolerance, from stock on common sizes and machined to order on the rest.

These are standard catalogue items. Detailed technical data sheets are available on request — email the well profile and the sizing requirement and we'll return a quotation with full specifications.

API standard · supply to order

Couplings

API 8RD, EUE, and NUE couplings in carbon, alloy, and corrosion-resistant metallurgies. Supplied to API 5B threading tolerances, boronizing-ready on request.

API 8RDEUE / NUEJ55 · L80 · P110

Request quotation

API standard · supply to order

Crossovers

Thread-to-thread crossovers for mixing tubing sizes, connection types, or materials within a single string. Custom machined to order.

Size × sizeEUE ↔ NUECustom machining

Request quotation

API standard · supply to order

Pup Joints

Short tubing lengths — 2 ft, 3 ft, 4 ft, 6 ft and custom — for spacing, handling, or tool positioning in the string. API-threaded, boronizing-ready.

2 – 12 ftAll API threadsBoronizing optional

Request quotation

Build the right string

Tell us the well — we'll spec the tubing and accessories.

Deviation, fluid, rod load, temperature, failure history — our engineering team assembles the right tubing, surface treatment, and wellhead hardware and documents it against the TDS.

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