Three-way ball valve

Product Overview

This Pneumatic 135 Degree Y-type Three-way Ball Valve (Model Q642F/H) is an industrial-grade special fluid control valve with pneumatic intelligent actuation as the core and 135° Y-type streamlined flow channel as the main function, tailor-made for powder, particle, high viscosity and easy-to-block working conditions. The valve body adopts a Y-type layout with three channels forming 135° to each other. Driven by the pneumatic actuator, the ball rotates 135° accurately to quickly realize the diverting, converging and flow direction switching control of the pipeline medium, which can be seamlessly connected to the PLC/DCS industrial automatic control system.

With flat flow channel without dead angle, low fluid resistance and strong flow capacity, it completely solves the industry pain points of easy blockage, jamming and medium retention of conventional right-angle three-way ball valves. Available in full sizes DN50–DN300 (NPS 2″–12″), it strictly complies with industrial valve standards including GB/T 12237, ASME B16.34 and API 6D, and is widely used in harsh working conditions such as mining, metallurgy, building materials, chemical industry, electric power and lithium battery manufacturing.

Key Features

1. Core 135° Y-type Streamlined Flow Channel, Low Flow Resistance & Anti-Blocking

   The product fully focuses on the core structural design of 135° Y-type. The three flow channels are arranged in a 135° symmetrical Y-type layout, with full port/reduced port optional design. The inner wall of the flow channel is mirror polished with rounded smooth transition, streamlined without throttling and retention dead angle. The fluid resistance is much lower than that of conventional 90° right-angle three-way ball valves, and the medium flows smoothly without scaling and blockage. It is perfectly suitable for easy-to-block working conditions such as PVC powder, flake materials, particle media, slurry, pulp and high viscosity fluids.

   Adopting three-side valve seat four-seal structure, it can stably realize two core working conditions: one inlet and two outlets diverting, two inlets and one outlet converging. The 135° rotation of the ball can complete smooth pipeline switching, with reliable sealing without cross flow and internal leakage, and no secondary pollution of the medium.

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2. Special Pneumatic Actuator, 135° Precise Control & Strong Adaptability

   The product fully focuses on the core drive demand of pneumatic actuation, and the quarter-turn pneumatic actuator is optimized and customized for Y-type three-way ball valves, accurately matching the 135° rotation stroke with full adaptability:

   1. Full type coverage: Standard equipped with AT/GT series heavy-duty pneumatischen Antrieben, full coverage of double acting (DA) / single acting spring return (fail-safe type), suitable for 0.4-0.8MPa industrial clean compressed air, the fastest switching time is 0.5 seconds, perfectly suitable for frequent opening and closing and emergency switching working conditions;
      

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   2. Full control accessory adaptation: Standard equipped with NAMUR standard mounting interface, which can be seamlessly matched with explosion-proof solenoid valve, limit switch box, valve positioner, air filter regulator, emergency handwheel mechanism, realizing remote on-off control and 4-20mA analog flow proportional regulation, perfectly adapting to various industrial automatic control systems;
      

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   3. High protection & explosion-proof adaptation: Standard IP67 protection grade, optional IP68 waterproof and dustproof grade, ExdⅡBT4/CT4 explosion-proof grade, perfectly suitable for harsh industrial working conditions such as humid, dusty, flammable and explosive scenarios; built-in mechanical + electrical double limit to ensure the switch is in place without over-travel, with accurate positioning without deviation;
      

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   4. Emergency operation guarantee: built-in manual operation mechanism, which can manually open and close the valve under air failure, signal interruption and equipment failure conditions, ensuring the safety of emergency pipeline operation.
   

3. Working Condition Specific Wear-Resistant Sealing Structure, Zero Leakage & Long Service Life

   Specially optimized for working conditions with particles and strong erosion, providing full coverage of two sealing options:

   Metal hard seal type (standard): The sealing surface of the ball and valve seat adopts plasma spray welding Stellite hard alloy and supersonic spraying tungsten-cobalt alloy, with surface hardness up to HRC45-70, resistant to erosion, wear and high temperature, suitable for high temperature working conditions ≤450℃; built-in spring self-tightening valve seat, which can automatically compensate for thermal expansion and contraction. When opening and closing, the valve seat forms a self-cleaning scraping effect on the ball surface, avoiding the sealing surface being scratched by particle media and preventing sealing failure;

   Soft seal type: Standard equipped with PTFE/PPL/PEEK wear-resistant valve seat, paired by high-precision grinding, the sealing grade reaches ANSI B16.104 Class VI bidirectional zero leakage, suitable for clean medium and normal temperature working conditions.

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4. Integral Trunnion Mounted Structure, Stable Opening and Closing Without Jamming

   The ball and stem adopt an integral forging design with no backlash transmission, stable and accurate reversing without intermittent loss. The full range is equipped with trunnion mounted double support structure as standard. The ball is equipped with high-precision support shafts on the upper and lower sides. Under high pressure and high solid content working conditions, the ball has no radial offset and no extrusion deformation.

   The sealing surface is evenly worn, and the opening and closing torque is constant and stable. It completely solves the pain points of sudden torque increase and jamming failure of the floating ball structure under high pressure. Even under large diameter and frequent opening and closing working conditions, it is still smooth without jamming, and the service life is greatly improved.

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5. Standard Flanged Connection + Full Material Adaptation, Industrial-Grade Stable & Durable

   The full series only adopts standard flanged connection in line with GB/T 9113 and ASME B16.5, with standard RF raised face sealing surface, optional RTJ ring joint face sealing for high pressure working conditions. It can be directly and seamlessly connected with domestic and foreign industrial pipelines of the same standard without modification and adaptation, with convenient installation and maintenance.

   The core parts such as valve body and ball provide a full range of industrial material options: WCB carbon steel, CF8(304), CF8M(316) stainless steel, duplex steel, ceramic lined, etc., perfectly adapting to various working conditions such as water, steam, corrosive media and strong wear media. The full series is equipped with anti-static structure, bottom-mounted T-type blow-out proof stem, API 607 fire-safe structure, and valve seat emergency grease injection port as standard, which fully eliminates potential safety hazards and is stable and reliable for long-term operation.

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Applications

Mining slurry/tailing conveying system, metallurgical blast furnace gas/dust conveying pipeline, building materials cement raw meal/coal powder pneumatic conveying system, chemical high viscosity/particle-containing medium process pipeline, power ash removal/fly ash conveying system, papermaking pulp conveying pipeline, lithium battery positive and negative electrode powder conveying system, waste incineration flue gas treatment system, food grain powder conveying pipeline.

Product Summary

This Pneumatic 135 Degree Y-type Three-way Ball Valve firmly focuses on the two cores of 135° Y-type anti-blocking flow channel and pneumatic intelligent actuation, and has the core advantages of low flow resistance without blockage, 135° accurate reversing, wear and erosion resistance, stable opening and closing, and remote control.

It perfectly solves the pain points of jamming, wear and sealing failure of conventional three-way ball valves under working conditions with particles, powder and easy blockage. Covering full diameter sizes and strictly complying with global industrial valve standards, it can be seamlessly connected to various industrial automatic control systems. It is the preferred special valve for automatic diverting, converging and switching control of multi-channel media in easy-to-block working conditions.