High Pressure Pup Joint Spacer Spool 1" - 5" 1000 - 20000PSI For Oilfield Piping

1. Product Overview

The High Pressure Pup Joint and Spacer Spool are essential pipeline components used in oilfield high-pressure fluid systems. They serve as spool pieces that connect various equipment such as manifolds, wellheads, pumps, and valves, providing the necessary length adjustment, directional flexibility, and equipment spacing in complex pipeline layouts.

Our high pressure pup joints and spacer spools are manufactured from high-strength alloy steel with strict heat treatment to ensure uniform metallurgical structure and pressure-bearing capacity. Both ends can be configured with various connection types – hammer union, threads, or flanges – to match your specific equipment requirements.

The port-to-port connections are available in three types: pressure-threaded seal, integral (one-piece), and butt-welded configurations, offering flexibility for different installation and maintenance needs.

All products are designed and manufactured in strict accordance with API Spec 6A and NACE MR0175 standards, ensuring reliable sealing, safe operation, and full interchangeability with major international brands. Available in a wide range of pressure ratings, sizes, and lengths to meet diverse operational requirements. Models are available for standard, low-temperature, and sour gas (H₂S) environments per user requirements.

Key features at a glance:

Multiple end connection options: Union, Thread, Flange

Three connection types: Threaded seal, Integral, Butt-weld

Pressure range: 1,000 – 20,000 PSI

Size range: 1″ – 5″

Length range: 1 ft – 20 ft

Temperature rating: -29°C to +121°C (PU grade)

API 6A compliant – fully interchangeable

Available for standard, low-temperature & sour service

2. Product Types

There are two types:

2.1 Pup Joint – Union Type

Features:

Quick make-up and break-out with hammer unions

Ideal for temporary or frequently changed connections

Excellent interchangeability with FMC, SPM, and other major brands

Replaceable seal rings for easy maintenance

2.2 Spacer Spool – Flange Type

Features:

Rigid, leak-proof bolted flange connections

Ideal for permanent or semi-permanent installations

Available in standard API flange sizes

Suitable for high-pressure and sour service applications

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3. Technical Specifications Comparison)

4. Model Numbers & Specifications

Our JH-PJ series high pressure pup joints and spacer spools are available in a comprehensive range of configurations. The table below provides detailed model numbers and available configurations:

Connection type key:

F/F: Female × Female (both ends female thread)

M/M: Male × Male (both ends male thread)

F/M: Female × Male (one end female, one end male)

Flange/Flange: Both ends flanged

FIG series available: 206 / 602 / 1002 / 1003 / 1502 / 2002 / 2202

Custom sizes, lengths, pressure ratings, and connection configurations available upon request. We also offer OEM/ODM services for special requirements.

5. Port Connection Types)

End connection options:

Hammer Union – FIG 206 / 602 / 1002 / 1003 / 1502 / 2002 / 2202

Threaded – API line pipe threads / tubing threads

Flanged  – API 6A flanges (2-1/16″ to 4-1/16″)