# Industrial projects, drawn to spec and delivered.

> Houston-based industrial engineering, equipment and material procurement, and project management for oil, gas, refining, power and marine work in the Americas.

URL: https://jjprojectsok.com  
Español: https://jjprojectsok.com/es  
Updated: 2026-10-15

Engineering, equipment and material procurement, and project management for oil and gas, refining, power and marine operations, from Houston across the Americas.

**In short:** JJ Projects LLC is a Houston, Texas company that provides industrial engineering, equipment and material procurement, and project management for oil and gas, petrochemical and refining, power and industrial, and marine operations across the United States and Latin America. It supplies steel and piping, valves and process equipment, refractory, electrical and instrumentation, safety, and IT equipment, and works in English and Spanish.

## Engineered, bought and coordinated by one team.

Three services that work alone or together. When they work together, the requirement that is calculated is the one that is quoted, ordered, inspected and delivered.

- [Engineering](https://jjprojectsok.com/services/engineering): Mechanical and process calculations for pressure vessels, heat exchangers, pipelines, slug catchers and tanks, plus refractory engineering for fired equipment.
- [Procurement](https://jjprojectsok.com/services/procurement): Sourcing from manufacturers and authorized distributors, technical and commercial evaluation, purchase-order follow-up, inspection and delivery coordination.
- [Project management](https://jjprojectsok.com/services/project-management): Planning, estimating, procurement and field management for industrial projects, with scope, schedule and material status kept visible from estimate to site.

## Six families. Every item specified.

From plate and pipe to refractory, valves, cable and the radios on site. Turn a box to see what is inside.

- [Steel and structural](https://jjprojectsok.com/products/steel-structural): Carbon, alloy, stainless and copper plate, sheet, line pipe, tubing, forgings, flanges, fittings, bolting, gaskets and structural steel for industrial projects.
- [Valves and process equipment](https://jjprojectsok.com/products/valves-process-equipment): Gate, globe, ball, check and needle valves in bronze, cast iron, cast and forged steel and stainless, plus separators, exchangers and pressure vessels.
- [Refractory](https://jjprojectsok.com/products/refractory): Refractory materials, anchors and installation support for heaters, reformers, boilers and furnaces. JJ Projects represents Delta Refractories in Latin America.
- [Electrical and instrumentation](https://jjprojectsok.com/products/electrical-instrumentation): Power and instrument cable, conduit, cable tray, junction boxes, motors, pumps, instrument tubing and fittings, and level, temperature and pressure instruments.
- [Industrial safety](https://jjprojectsok.com/products/industrial-safety): Helmets, respiratory protection, safety footwear, gloves, hearing protection, flame and gas detection, and industrial radios for plants and field crews.
- [IT and office](https://jjprojectsok.com/products/it-office): Computers, servers, networking equipment, printers, toner and office supplies sourced through authorized channels and consolidated into one procurement channel.

## From the drawing board to the job site.

1. **It starts as a drawing..** Size, grade, rating, standard, quantity and documents: the requirement is pinned down before anyone is asked for a price.
2. **The right mill, the right distributor..** Requests go to manufacturers and authorized distributors chosen for the material and the destination, and offers are compared on the same basis.
3. **Checked before it ships..** Inspection and the documents on the order, such as material test reports, are confirmed before the material is released.
4. **Packed, marked and documented..** Export documents, packing and transport are organized to the named place in the agreed Incoterm.
5. **On site when the work needs it..** Delivery follows the project sequence, so the field crew has the material for the next task.
6. **Houston to the hemisphere..** From Houston to projects across the United States, Central America and South America.

## Along the coast that runs the economy.

Oil and gas, refining and petrochemicals, power and industrial plants, and the marine yards between them.

- [Oil and gas](https://jjprojectsok.com/industries/oil-gas): Pipe, valves, vessels, exchangers, slug catchers, electrical, instrumentation and safety supply, plus engineering and project support for oil and gas.
- [Petrochemical and refining](https://jjprojectsok.com/industries/petrochemical-refining): Valves, pressure equipment, heat exchangers, refractory for heaters and reformers, piping, gaskets and stud bolts for refineries and petrochemical plants.
- [Power and industrial](https://jjprojectsok.com/industries/power-industrial): Piping, valves, pumps, motors, instrumentation, refractory for boilers and furnaces, safety and IT supply for power generation and industrial facilities.
- [Marine](https://jjprojectsok.com/industries/marine): Shipbuilding plate, structural steel, piping, fittings, valves, safety, electrical and communications supply for shipbuilding, ship repair and marine work.

## Answers buyers and engineers look up.

Sourced guides to the specifications, documents and terms behind every order.

- [Industrial procurement process, step by step](https://jjprojectsok.com/knowledge/industrial-procurement-process): How industrial procurement works, step by step: requirement, RFQ, bid tabulation, evaluation, award, PO, expediting, inspection, logistics and delivery.
- [How to write an RFQ for industrial materials](https://jjprojectsok.com/knowledge/how-to-write-an-rfq): What an RFQ for industrial materials must specify: item, size, schedule or class, grade, standard, quantity, MTRs, inspection, packing and Incoterm.
- [Pipe schedules: NPS, OD and wall thickness](https://jjprojectsok.com/knowledge/pipe-schedules-explained): NPS is a label, not a measurement. Learn how pipe schedule sets wall thickness under ASME B36.10M and B36.19M, with OD and wall tables for NPS 2, 4, 6 and 8.
- [Flange pressure classes: ASME B16.5 and B16.47](https://jjprojectsok.com/knowledge/flange-pressure-classes): How ASME flange classes 150 to 2500 work: B16.5 vs B16.47, pressure-temperature ratings, facings RF, FF and RTJ, flange types and common materials.
- [Material test reports (MTRs) and EN 10204](https://jjprojectsok.com/knowledge/material-test-reports): What a material test report contains, how EN 10204 types 2.1, 2.2, 3.1 and 3.2 differ, what heat numbers mean, and what to check against the purchase order.
- [Incoterms 2020 explained: the 11 rules](https://jjprojectsok.com/knowledge/incoterms-2020): All 11 Incoterms 2020 rules in one table: where the seller delivers, where risk and cost pass, who clears export and import, plus US to Latin America notes.
- [Refractory lining basics: materials, anchors](https://jjprojectsok.com/knowledge/refractory-lining-basics): How refractory linings work in heaters, boilers and reformers: dense and insulating castables, firebrick, ceramic fiber, anchors, and why dry-out matters.
- [Stud bolts and gaskets: ASTM A193 and A320](https://jjprojectsok.com/knowledge/stud-bolts-and-gaskets): How to specify flange bolting and gaskets: ASTM A193 B7, B7M, B8, A194 2H and 2HM nuts, A320 L7, coatings and spiral-wound gaskets to ASME B16.20.
- [Valve types and standards: API and ASME B16.34](https://jjprojectsok.com/knowledge/valve-types-and-standards): Gate, globe, ball, check, butterfly and needle valves: what each does, which standards apply (API 600, 602, 6D, 608, 594, B16.34) and how to choose.
- [ASTM A106 vs A53 pipe: which one to specify](https://jjprojectsok.com/knowledge/astm-a106-vs-a53): ASTM A106 is seamless pipe for high-temperature service; A53 also covers welded pipe. Compare grades, strength, service and dual-certified pipe.
- [API 5L PSL1 vs PSL2: grades and requirements](https://jjprojectsok.com/knowledge/api-5l-psl1-vs-psl2): API 5L PSL2 adds tighter chemistry, strength limits, mandatory Charpy tests and heat traceability over PSL1. Grades B to X70 in psi and MPa.
- [Weld neck vs slip-on flanges: how to choose](https://jjprojectsok.com/knowledge/weld-neck-vs-slip-on-flanges): Weld neck flanges are butt welded and suit high pressure, heat and cyclic service; slip-ons use two fillet welds and cost less. Compare strength and cost.
- [NACE MR0175 / ISO 15156 for buyers](https://jjprojectsok.com/knowledge/nace-mr0175-iso-15156-sour-service): NACE MR0175 / ISO 15156 limits materials and hardness for H2S service to prevent cracking. Learn the three parts, 22 HRC and what a buyer must specify.
- [US export documents for Latin America](https://jjprojectsok.com/knowledge/export-documentation-for-latin-america): The documents a US export shipment to Latin America usually needs: commercial invoice, packing list, bill of lading, EEI in AES, certificate of origin and MTRs.
- [Gate, globe, ball and check valves by service](https://jjprojectsok.com/knowledge/gate-globe-ball-check-valve-selection): Choose gate, globe, ball or check valves by service: isolation, throttling, tight shutoff, solids, steam and pump discharge, with check valve types compared.

## Questions

### What does JJ Projects do?

JJ Projects provides industrial engineering, equipment and material procurement, and project management for oil and gas, petrochemical and refining, power and industrial, and marine operations.

### Where is JJ Projects located?

5757 Woodway Dr., Suite 300MM, Houston, Texas 77057. The company supports requirements across the United States and Latin America.

### What products can JJ Projects supply?

Steel plate, pipe, tubing, flanges, fittings and structural steel; valves and process equipment; refractory; electrical and instrumentation; industrial safety equipment; and IT and office equipment.

### How do I request a quotation?

Use the request-a-quote form, email sales@jjprojectsok.com or call +1 (281) 972-6049. Include the item, size, material grade and standard, quantity, required documents, delivery place and date.