Greg Peddie

64 Total Posts

Joined Jan 1, 2026

Last Post Feb 25, 2026

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Last Post Feb 25, 2026

64 Total Posts

63 posts found

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Product Selection

4 min

Nov 11, 2025

Pipe Flange Specifications Don’t Need to be Confusing - Sizing

This post details pipe flange dimensional specifications, crucial for proper fit and safe operation. It covers key standards like ASME/ANSI, API, MSS, and international norms such as ISO, EN, DIN, BS, and JIS. Understanding these ensures compatibility and defines critical measurements, pressure ratings, and tolerances.

Greg Peddie

Product Selection

2 min

Nov 11, 2025

Pipe Flange Specifications Don’t Need to be Confusing - Materials

Ordering pipe flanges requires understanding both material and dimensional specifications. This guide outlines essential details like flange type, pipe size, pressure class, facing, and common material grades (e.g., ASTM A105, A182), ensuring you can confidently specify flanges for various industrial applications.

Greg Peddie

Fittings

3 min

Nov 11, 2025

ASTM A350 Low Temperature Carbon Steel and Its Material Grades

ASTM A350 specifies carbon and low-alloy steel forgings for low-temperature service, guaranteeing toughness and ductility in sub-zero environments. Essential for piping, pressure vessels, and fittings, grades like LF2 (common cold service) and LF5/LF9 (cryogenic applications) ensure reliable performance. Choosing the correct A350 grade is vital for safety.

Greg Peddie

Fittings

2 min

Nov 10, 2025

Understanding ASTM A105 Steel and Its Material Grades

ASTM A105 is a widely used carbon steel for forged piping components like flanges and fittings. Known for its versatility, strength, and cost-effectiveness, it's ideal for pressure systems in ambient and high-temperature service. Understanding its various sub-grades, such as A105N, ensures optimal material selection for diverse applications.

Greg Peddie

Product Selection

3 min

Nov 10, 2025

A182 List of Material Grades

This post offers a comprehensive list of common ASTM A182 & ASME SA182 material grades, including brief descriptions, typical availability, and common uses for piping, flanges, fittings, and valves. Learn how to select the correct grade to meet your application's temperature, pressure, corrosion, and service-life demands.

Greg Peddie

Product Selection

3 min

Oct 24, 2025

Pressure Relief Valves vs. Safety Relief Valves

Pressure Relief Valves (PRVs) and Safety Relief Valves (SRVs) are critical for overpressure protection. PRVs are designed for liquid service, opening gradually, while SRVs are for gas or vapor systems, providing rapid, full-capacity relief. Understanding these distinct functions is essential for selecting the correct valve to ensure system safety and compliance.

Greg Peddie

Gruvlok

2 min

Oct 14, 2025

Gruvlok Grooved Fittings

Gruvlok grooved fittings offer significant benefits for piping systems, including simplified installation, reliable leak-free performance, and versatile application across diverse industries. With a broad product range and proven durability, Gruvlok provides an efficient, strong, and flexible connection method for modern piping design, ensuring long-term value and dependable performance.

Greg Peddie

Fittings

2 min

Oct 14, 2025

Copper ACR solder joint fittings vs standard copper solder joint fittings.

Copper ACR fittings are engineered for HVAC and refrigeration, meticulously cleaned, dehydrated, and capped for refrigerant purity and high-pressure service. Standard copper solder fittings are for plumbing water or gas systems, without the same stringent cleanliness or high-pressure requirements. They differ in sizing and typical joining methods too.

Greg Peddie

Valves

3 min

Aug 14, 2025

Understanding Ball Valves: Types, End Connections, and Materials

Ball valves are versatile and reliable, widely used in industrial piping. Understanding their different types (bore, body, seating), end connections (threaded, flanged, welded), and materials (carbon steel, stainless steel, brass, plastics) is crucial for selecting the right valve for performance, safety, and cost-efficiency across various applications.

Greg Peddie

Butt Weld Fittings

4 min

Aug 13, 2025

The Benefits of Using Stub Ends and Lap Joint Flanges

The stub end and lap joint flange combination offers versatile and cost-saving advantages for industrial piping. This pairing provides cost efficiency, ease of maintenance, and long service life by allowing for less expensive flange materials, easier alignment, and simplified replacement. It's ideal for high-maintenance or large-diameter systems.

Greg Peddie

Apollo

3 min

Aug 12, 2025

Types and Quality of Apollo Ball Valves

Apollo Valves are renowned leaders in manufacturing reliable, precision-engineered ball valves for diverse industrial, commercial, and residential applications. This post explores the primary types of Apollo ball valves, their design benefits, quality standards, and the features that make them a trusted choice for superior flow control across various industries.

Greg Peddie

Manufacturers

3 min

Aug 11, 2025

Campbell Fittings Cam & Groove Fittings

Explore Campbell Fittings' precision-engineered Cam & Groove couplings, a staple for quick, secure connections in industries from petroleum to food processing. This guide details their variations in types, materials, and sizes, emphasizing Campbell's commitment to quality, safety, and durability, ensuring reliable hose coupling solutions.

Greg Peddie

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