China is the dominant sourcing base for knife gate valves, with Made-in-China.com listing manual units between US$30.00 and US$2,000.00 per piece at a 2-piece MOQ from audited Shandong factory Qingdao Huaguan Valve [S1], and Alibaba indexing 100 cast-iron knife gate valve suppliers as of 10 July 2026 [S4].
Active 2026 manufacturers include Shanghai Suntak Valves (pneumatic knife gate valves, butterfly valves) [S2], Hangzhou Henggong Technology (knife gate, ball, forged steel valves) [S5], and Axegic Valve (pulp-and-paper, mining, wastewater-focused) [S6]; Okorder lists a separate Chinese flow-direction knife gate valve SKU at a 50-piece MOQ with 5,000 pieces/month capacity [S7].
Price Bands and MOQ Across Manual, Cast-Iron, and Pneumatic Categories
Manual knife gate valve listings on Made-in-China.com span US$30.00-2,000.00 per piece with a 2-piece MOQ from Diamond Member Qingdao Huaguan Valve Co., Ltd. (Shandong, China) [S1]. The 2025 sibling listing for the broader knife gate valve category also shows metal-soft, resilient-seated, flanged, solenoid, electric, hydraulic, manual, cast iron, stainless steel, wedge, water, slice, and slide variants on a single comparison page [S3], which means buyers can filter the same supplier pool across at least 10 design variants in one search.
Cast-iron knife gate valve factory count on Alibaba reached 100 suppliers in the July 2026 snapshot, with reported top markets split as Southeast Asia 30.0%, North America 20.0%, and Western Europe 20.0% for the leading seller, and a 92.9% response rate tag; a second Western-Europe-heavy seller posts 36.0% / 35.0% / 11.0% Western Europe / North America / Oceania and 89.4% response [S4]. Okorder's pneumatic/flow-direction SKU posts 50 pieces MOQ against 5,000 pieces/month supply capability with TT or LC payment terms out of a China main port [S7].
Manufacturer Profiles: Location, Product Range, and Export Footprint
Shanghai Suntak Valves Co., Ltd. (sales contact Mr. Jeff Yu, Room 2402, No.1 Lane 418 Wuyi Road, Shanghai) lists pneumatic knife gate valves alongside butterfly valves as a Manufacturer/Factory & Trading Company on Made-in-China.com [S2]. Hangzhou Henggong Technology Co., LTD (Yanghe Apartment, Gongshu District, Hangzhou, Zhejiang) positions knife gate, ball, and forged steel valves and declares North America, South America, Eastern Europe, Southeast Asia, Africa, and Oceania as main markets [S5].
Axegic Valve markets its knife gate valve line specifically to pulp-and-paper, mining, and wastewater operators, citing sharp-gate geometry as the differentiator against conventional rising-stem designs [S6]. For comparison, gate valve buyers sourcing wedge or resilient-seated iron-body units from the same Made-in-China.com portal can cross-reference [S1] and [S3] under one Industrial Equipment & Components taxonomy node. Several of the platforms' Diamond Members, such as Tianjin-based worlds-valves, also carry resilient rubber-seated flanged gate valves, double-flange butterfly valves, and CF8/PTFE-seat wafer-pattern butterfly valves in adjacent categories [S2].
Material and Actuation Variants Buyers Can Source in One RFQ
Manual, electric, hydraulic, pneumatic, solenoid, cast iron, stainless steel, and metal-soft resilient-seated variants are all indexed under the same product-search taxonomy on Made-in-China.com [S3]. Actuation breadth is the first selection filter: a 220V electric actuator SKU appears on the Wenzhou, Zhejiang Diamond Member's showroom alongside motorized ball- and butterfly-valve actuators [S2], while Shanghai Suntak pushes pneumatic knife gate valves as its stated main product [S2].
Body-material options on the China sourcing pages include cast iron (lowest-cost abrasive-slurry service, see [S4]), stainless steel, brass and bronze lines from Ningbo Diamond Members (brass ball, bibcock, radiator, gate, check, angle valves) [S2], and PTFE-seated wafer butterfly valves using ASTM B148 Al-Bronze disc or CF8 disc in CI body [S2]. For duties where elastomer compatibility fails, ball valve and butterfly valve product lines on the same showroom enable direct material and seat comparison. Buyers should match the seat-and-stem combination to the slurry's pH and temperature, since metal-soft resilient-seated and full-PTFE-lined butterfly valves are stocked by separate Tianjin- and Wenzhou-region Diamond Members [S2].
Service Industries, Slurry Duty, and Where Knife Gates Win or Lose
Knife gate valves are specified for pulp and paper, mining, and wastewater service per Axegic Valve's product positioning [S6], which matches the field consensus that the sharp gate geometry handles fibrous slurries, sludges, and viscous liquids that would foul a gate valve or wedge-gate seat. Pneumatic-actuated variants suit remote mining or tailings-line duty, and the Okorder SKU's 5,000 pieces/month capability [S7] demonstrates the volume class Chinese factories can hold for OEM-distribution deals.
The variant is not the right pick for clean, high-pressure steam or hydrocarbon isolation, where a ball valve or check valve is the proper comparison, and seat temperature, pressure class, and bubble-tight shut-off should be confirmed against MSS SP-81 or API 600 references for any oil-and-gas scope; the related article Knife Gate Valve Specs for Oil and Gas: MSS SP 81, API 600, and Slurry Limits maps that decision tree in detail.
Sourcing Signals: Response Rates, Revenue Bands, and Verification
Top cast-iron knife gate valve sellers on Alibaba report US$1-2.5 Million and US$5-10 Million total revenue bands with 89.4-92.9% response rates and 100+ supplier pool as of 10 July 2026 [S4]. Hangzhou Henggong's six-region export footprint [S5] and Shanghai Suntak's Manufacturer/Factory & Trading Company registration [S2] are the most concrete trading-company-versus-factory signals in the dataset, useful for buyers deciding between direct-factory and trading-company PO routes.
For a more rigorous check, the Made-in-China.com 2-piece MOQ at US$30.00-2,000.00 [S1] is a small enough trial order to validate pressure class, body material, and seat behaviour on receipt; pair that with the balancing valve and check valve reference pages to compare flow-control options before locking the spec.
Track three signals over the next quarter: (1) movement in the US$30.00-2,000.00 manual price band as raw stainless and cast-iron surcharges change; (2) any tightening of the 89.4-92.9% Alibaba response rate as the 100-supplier cast-iron pool consolidates; (3) Shanghai Suntak and Hangzhou Henggong adding explicit MSS SP-81 or API 600 conformance language to their listings, which would mark an upgrade from general-industrial to oil-and-gas qualification.