The Valve Specification Database, Quantified: 1,065 Products Across 92 Brands

Why This Matters

Engineers and procurement teams choose valves every day, but almost every sizing or selection guide opens with generic advice: "ball valves are common," "carbon steel is a safe default." Almost nobody publishes the actual numbers behind those claims. This report closes that gap.

Every figure below comes from the ValveSpecs Pro specification database — a curated catalog of 1,065 individual valve product records from 92 manufacturers. This is not a marketing brochure. Each data point is a structured field (valve type, body material, model designation, pressure rating, governing standard) published on the product's own specification page. This is the data-asset edition: a single citable page that engineers, buyers and technical writers can reference, link to, or quote when they need real distribution figures rather than anecdotes.

How the Data Was Compiled

• Scope: 1,065 valve product specification pages across 92 brands.
• Fields captured per record: product name, valve-type category, body material, model designation, brand, and any pressure-rating and standard reference embedded in the model code.
• Brand origin coverage: a country of manufacture is recorded for 78 of 92 brands; records whose brand publishes no country are excluded from the country-weighted table.
• Method: every product page is generated from a structured database record, so aggregations are field-level counts, not re-parsing of rendered HTML. Where a body material lists several metals (for example a trim-vs-body combination such as WCB body / CF8M trim), the record is kept whole and tagged to every material family it mentions.
• Refresh: these are point-in-time counts from the live catalog as of the date in this report's header.

1. Valve Type Distribution — What the Catalog Actually Carries

The catalog is dominated by quarter-turn and soft-seated designs, which mirrors how industrial isolation is actually bought.

Reading the numbers. Ball valves alone account for 36.2% of the database, butterfly valves 22.0%, and check valves 12.0% — together about 70% of all product records. These three families are the industrial workhorses: on/off isolation (ball), economical large-diameter flow control (butterfly), and one-way flow prevention (check).

Gate valves (6.7%) and globe valves (4.8%) are the linear isolation and throttling pair — together 11.5% — while control valves (6.5%) and relief/safety valves (6.0%) represent the instrumented and overpressure-protection segments. Steam traps (2.8%) confirm meaningful steam-plant coverage, and strainers (0.2%) the small ancillary-filtration niche.

2. Body Material Distribution — Steel Rules, Combinations Rule More

The single most common body-material record is not one material but a carbon-steel + stainless-steel + duplex combination, appearing in 22.3% of records (238 products). That reflects how manufacturers offer one platform ranging across WCB carbon steel, CF8M / 316 stainless and duplex bodies from a single product series.

Key takeaways.

• Steel families (carbon, cast, stainless, duplex, alloy) appear across the large majority of records. Pure stainless-steel-only bodies are 54 records (5.1%).
• Cast-iron bodies (149 records, 14.0%) concentrate in lower-pressure water, HVAC and municipal service.
• Plastic / PTFE-lined (87 records) and ceramic (52 records) constructions represent the corrosive-service niche rather than a volume driver.
• 50 records do not declare a body material.

3. Manufacturer Origin — a China-Heavy Catalog with a Long Tail

Weighting by product count rather than counting brands equally sharpens the picture.

By brand count, 66 of 92 brands are China-based, and the product-weighted share confirms those brands supply 45.5% of the catalog's records. That is expected: China is the world's largest general-purpose valve manufacturing base and dominates the mid- and high-volume, cost-sensitive segments.

The tail is long. Only a handful of brands approach 11.4% of the catalog, and most of the 92 brands each contribute a small, specialized block. 554 records carry a brand that publishes no country and are excluded here.

4. Pressure-Rating Signals in Model Codes

Model designations encode the nominal pressure rating. The table counts how many product models carry each rating code — a proxy for the pressure classes manufacturers actually tool up for.

PN10, PN16 and PN6 dominate: the metric (DIN / EN) low-to-medium pressure range that serves water, HVAC and general industrial service. ANSI Class 150 / 300 / 600 / 900 appear in smaller counts, confirming the catalog's mix of metric and inch-based plants. PN ranges are not directly interchangeable with ANSI classes; convert rather than match raw numbers (for example PN16 is comparable to Class 150 at ambient, PN25 to Class 300).

5. Governing Standards

Model designations that name a governing standard reveal which specifications manufacturers build to.

API 6D (pipeline valves) and API 608 (steel ball valves) are the most-cited, consistent with the ball-valve weight of the catalog. A full per-type standard-coverage breakdown is maintained on the valve standards overview hub.

6. Manufacturer Age — a Mature Industry

Established-year data (where published) shows the valve industry's deep roots.

A majority of brands with known founding dates predate the 2000s. For a buyer this means an established supply base with long service records, not a transient vendor pool.

7. Top Manufacturers by Catalog Volume

What to Do With This Data

• For procurement. Use the valve-type and material tables to sanity-check whether a specification's scope matches how the installed base is actually bought. A valve type that represents 0.2% of the catalog has fewer qualified sources and longer lead times.
• For engineers writing specs. The pressure and standard tables let you cite a real distribution when you argue that a rating is standard versus over-specification.
• For technical writers and educators. This page is a citable data asset. Reference it when a textbook, guideline or internal standard needs a defensible industry-wide figure rather than an assumption.

Methodology Notes & Limitations

• Counts are a point-in-time snapshot of the live catalog and grow as manufacturers and product series are added.
• Material and country aggregations are field-level. Records with multiple body materials are tagged to each family, so family percentages sum to more than 100%.
• Records whose brand publishes no country are excluded from the country-weighted table.
• Pressure and standard figures are extracted from model designations and reflect only ratings spelled out in the model code; they understate records where the rating lives in a separate spec table rather than the model string.

Related Resources

• Valve standards overview — per-type standards, flange faces and pressure-temperature ratings.
• Valve materials & flanges — body and trim material selection and corrosion guidance.
• Ball valve hub, butterfly valve hub, gate valve hub — family-specific selection guides linking every product class back to engineering fundamentals.