--- title: Top 10 Knife Gate Valve Manufacturers in the World date: 2026-09-10T08:14:00Z modified: 2026-09-22T06:43:06Z permalink: "https://www.tgvalve.com/blog/knife-gate-valve/knife-gate-valve-manufacturers/" type: post status: publish excerpt: "" wpid: 3683 categories: - knife gate valve featured_image: "https://www.tgvalve.com/wp-content/uploads/2026/09/image15-1.webp" featured_image_alt: Featured blog graphic titled Top 10 Knife Gate Valve Manufacturers in the World featuring a CTGV industrial heavy duty knife gate valve in a pipeline. timestamp: 2026-09-22T06:43:06Z tags: - knife gate valve --- ## Quick Answer The world’s top knife gate valve manufacturers build to MSS SP-81 and test to API 598 or EN 12266 for slurry and solids isolation. Leading suppliers build valves that measure from 2 inches to 96 inches. They also manufacture valves with unidirectional and bidirectional seats for mining, wastewater, and pulp and paper lines. CTGV ranks first among heavy duty knife gate valve manufacturers, engineering valves that meet these exact standards for global industrial buyers. ## Who Are the Top 10 Knife Gate Valve Manufacturers in the World? The top 10 knife gate valve manufacturers span the USA, Europe, and Asia, each serving distinct industrial sectors. ### 1. CTGV (TG Valve Group) ![Blue CTGV logo for TG Valve Group, a top-ranked knife gate valve manufacturer for mining, wastewater, and pulp & paper industries.](https://www.tgvalve.com/wp-content/uploads/2026/09/image8-1200x720.webp) CTGV designs knife gate valves for mining, wastewater, and pulp and paper plants that need dependable shutoff under abrasive service. The company backs every valve with [API 598 and EN 12266](https://www.tgvalve.com/wp-content/uploads/wp-mfa-exports/post/api-598-vs-api-6d.md). CTGV ranks first on the list because of its verified factory quality control. The company runs 13 in-process QC checkpoints and operates more than 300 inspection devices on its production floor. CTGV holds ISO 9001, ISO 14001, ISO 45001, CE, and API 609 certifications, giving procurement teams documented proof of process control. Engineers sourcing from [heavy duty knife gate valve manufacturers](https://www.tgvalve.com/product/manual-knife-gate-valve/) get bidirectional sealing, hardened gate edges, and material options built for abrasive slurry and solids handling. ### 2. Orbinox ![Blue and white Orbinox logo, a Spanish knife gate valve manufacturer founded in 1964 serving over 70 nations.](https://www.tgvalve.com/wp-content/uploads/2026/09/image10-edited.webp) Orbinox, which was founded in Spain back in 1964, is a knife gate valve manufacturer that serves more than 70 nations. Its specialization includes mining, wastewater, and pulp and paper industries, and its standard product range is extensive. ### 3. DeZURIK ![Blue DeZURIK logo, a US-based knife gate valve manufacturer established in 1928 for water and chemical process pipelines.](https://www.tgvalve.com/wp-content/uploads/2026/09/image9-edited.webp) Located in Sartell, Minnesota, DEZURIK has been operating since 1928. It has five manufacturing plants located in North America and is ISO 9001:2015 certified. DeZURIK manufactures cast and fabricated knife gate valves for water, wastewater, and chemical process pipelines. ### 4. Henry Pratt Company ![Black Henry Pratt logo, a Mueller brand, fabricating custom knife gate valves from 2 inches to 96 inches in the USA.](https://www.tgvalve.com/wp-content/uploads/2026/09/image14.webp) Henry Pratt, part of Mueller Water Products, has built knife gate and slide gate valves since 1995. The company fabricates custom sizes from 2 inches to 96 inches in carbon steel and stainless alloys. ### 5. Emerson (Clarkson) ![Clarkson and Emerson logos side-by-side, highlighting knife gate valves for power, chemical, and general industrial isolation.](https://www.tgvalve.com/wp-content/uploads/2026/09/image13-edited-1200x380.webp) Emerson, tracing its roots to 1890 in St. Louis, manufactures knife gate valves under its Clarkson product line. The portfolio serves power, chemical, and general industrial isolation needs across multiple pressure classes. ### 6. Red Valve Company ![Red Valve logo, a Pittsburgh-based manufacturer of knife gate valves and pinch valves for wastewater and mining slurry lines.](https://www.tgvalve.com/wp-content/uploads/2026/09/image6.webp) Red Valve Company, based in Pittsburgh since 1953, holds ISO 9001:2015 certification and supplies isolation valves for slurry lines. The company also manufactures pinch valves and check valves for related wastewater and mining processes. ### 7. Wey Valve Inc. ![Red Wey Valve logo, a Mississippi-based knife gate valve manufacturer emphasizing durable construction for chemical and wastewater service.](https://www.tgvalve.com/wp-content/uploads/2026/09/image3-edited.webp) Wey Valve, established in Mississippi in 1987 under parent company Sistag, builds knife gate valves for oil and gas and chemical service. The company emphasizes durable construction and personalized[ after-sales support](https://www.tgvalve.com/wp-content/uploads/wp-mfa-exports/page/service.md) for wastewater customers. ### 8. NSW Valve ![Navy blue NSW Valve logo, a knife gate valve supplier for mining, power, and water treatment across Asia-Pacific markets.](https://www.tgvalve.com/wp-content/uploads/2026/09/image11-edited.webp) NSW Valve supplies knife gate valves across Asia-Pacific markets, serving mining, power, and water treatment customers. The company offers standard and custom configurations for varied pressure and temperature conditions. ### 9. VAG Group ![Green VAG Group logo, a German manufacturer providing knife gate valves for municipal water and wastewater infrastructure worldwide.](https://www.tgvalve.com/wp-content/uploads/2026/09/image12.webp) VAG Group, headquartered in Germany, manufactures valves for municipal water and wastewater infrastructure worldwide. Knife gate valves form part of a broader isolation and control valve portfolio for treatment plants. ### 10. AVK Group ![Blue AVK Group logo, a Danish valve manufacturer supplying knife gate valves for water utilities and industrial isolation in over 100 countries.](https://www.tgvalve.com/wp-content/uploads/2026/09/image1.webp) AVK Group, based in Denmark, produces valves for water utilities and industrial customers across more than 100 countries. The company’s knife gate valve range supports wastewater treatment and general isolation duties. ## Comparison Table This comparison matrix summarizes headquarters, founding history, certifications, and primary industries for each manufacturer on this list. The lineup includes several established knife gate valve manufacturers USA brands, such as DeZURIK, Henry Pratt, and Red Valve, alongside global specialists. | **Manufacturer** | **HQ** | **Founded / Since** | **Key Certifications** | **Primary Industries** | | --- | --- | --- | --- | --- | | CTGV (TG Valve Group) | China | 1985 | ISO 9001, ISO 14001, ISO 45001, CE, API 609 | [Mining, wastewater, pulp & paper](https://www.tgvalve.com/wp-content/uploads/wp-mfa-exports/page/valve-solutions-for-chemical-petrochemical-processing.md) | | Orbinox | Spain | 1964 | ISO 9001 | Mining, wastewater, pulp & paper, power | | DeZURIK | USA | 1928 | ISO 9001:2015 | Water, wastewater, chemical, power | | Henry Pratt Company | USA | 1995 (KGV line) | — | Water, wastewater | | Emerson (Clarkson) | USA | 1890 | — | Power, chemical, industrial | | Red Valve Company | USA | 1953 | ISO 9001:2015 | Wastewater, mining | | Wey Valve Inc. | USA | 1987 | — | Oil & gas, wastewater, chemical | | NSW Valve | Asia-Pacific | — | — | Mining, power, water treatment | | VAG Group | Germany | — | — | Municipal water & wastewater | | AVK Group | Denmark | — | — | Water utilities, industrial | [ ![Manual Knife Gate Valve](https://tgvalve.b-cdn.net/wp-content/uploads/2025/11/3453-800x791.webp) ](https://www.tgvalve.com/product/manual-knife-gate-valve/) [Manual Knife Gate Valve ](https://www.tgvalve.com/product/manual-knife-gate-valve/)**Material:** Connection Form: Wafer, Lug, Semi-Lug **Nominal Diameter:** PN10, PN16, 150LB **Body:** Dutile iron, Carbon steel, Stainless steel [ View Product ](https://www.tgvalve.com/product/manual-knife-gate-valve/) [ Get Quote ](https://www.tgvalve.com/contact-us/) ## What Is the Difference Between a Knife Gate Valve and a Gate Valve? A knife gate valve uses a sharp-edged gate to cut through slurry and fibrous material, while a standard gate valve does not. This knife gate valve vs gate valve distinction matters most in mining, pulp and paper, and wastewater service with solids-laden flow. Knife gate valves also install in a shorter face-to-face length, saving space in tight piping runs. ## What Specifications Should Buyers Check Before Ordering a Knife Gate Valve? Buyers should confirm pressure rating, seat material, gate thickness, and end connection before placing an order. A complete knife gate valve specification also lists body material, temperature range, and applicable standards such as API 609 or EN 12266. Reviewing this knife gate valve specification against actual line conditions prevents premature seal wear and unplanned downtime. ## How Do You Choose the Best Knife Gate Valve Manufacturers for Your Industry? The [best knife gate valve manufacturers](https://www.tgvalve.com/wp-content/uploads/wp-mfa-exports/page/manufacturing.md) document certifications, publish real specifications, and support custom sizing for demanding service. Buyers comparing suppliers should weigh lead time, freight cost, and after-sales support alongside price. Manufacturers with in-house QC testing, like CTGV, reduce field failure risk for abrasive and corrosive applications. ## Conclusion Global buyers can choose from ten knife gate valve manufacturers to evaluate for mining, wastewater, and pulp and paper projects. CTGV stands out through documented certifications, 13 in-process QC checkpoints, and 100+ inspection devices on its factory floor. Engineers and procurement teams gain a partner that backs every valve with verifiable process control rather than generic claims. Request a quote from CTGV today to specify a knife gate valve built for your exact operating conditions. ## Frequently Asked Questions ### 1. How long does a knife gate valve typically last in mining slurry service? Service life depends on gate material, slurry abrasiveness, and cycle frequency. Hardened stainless gates in properly sized valves commonly last 3 to 5 years before seat replacement. ### 2. Can a knife gate valve handle high-pressure applications? Most knife gate valves suit low to medium pressure, typically under 150 PSI. For higher pressure service, engineers should specify a metal-seated or bidirectional design rated for the exact line pressure. ### 3. What lead time should buyers expect when ordering custom sizes? Standard sizes often ship within 2 to 4 weeks. Custom or large-diameter valves may take 6 to 10 weeks, depending on the manufacturer’s production schedule and current order backlog. [Get Free Quote](https://www.tgvalve.com/wp-content/uploads/wp-mfa-exports/page/contact.md)