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- Butterfly Valve
- Triple Offset Butterfly Valve
- Double Eccentric Butterfly Valve
- Resilient Seated Butterfly Valve
- High Performance Butterfly Valve
- Flue Gas Butterfly Valve
- Ball Valve
- Small Size Ball Valve
- Floating Ball Valve
- Trunnion Ball Valve
- Full Welded Ball Valve
- Gate Valve
- Forged Gate Valve
- Casting Steel Gate Valve
- Casting Iron Gate Valve
- Knife Gate Valve
- Globe Valve
- Forged Globe Valve
- Casting Steel Globe Valve
- Casting Iron Globe Valve
- Check Valve
- Forged Check Valve
- Lift Check Valve
- Disc Check Valve
- Hydraulic Valve
- Fixed Cone Valve
- Plunger Valve
- Hydraulic Control Valve
- Air Vent Valve
- Hydraulic Check Valve
- Plug Valve
- Sleeve Plug Valve
- Lubricated Plug Valve
- Orbit Plug Valve
- Marine Valve
- JIS Marine Valves
- Actuators
- Pneumatic Actuator
- Electric Actuator
- Hydraulic Actuator
- Positioner
- Accessories
- Pipe Fitting
- Joints
- Flanges
- Strainer
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Applications
- Water treatment
- Oil and Gas
- Chemical and Petrochemical
- Mining and Metallaurgy
- Food and Beverage
- Slurry and Paper
- Power Generation
- Marines and Offshore
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Resources
- Literature Download
- News Center
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About Us
-
Products
- Butterfly Valve
- Triple Offset Butterfly Valve
- Double Eccentric Butterfly Valve
- Resilient Seated Butterfly Valve
- High Performance Butterfly Valve
- Flue Gas Butterfly Valve
- Ball Valve
- Small Size Ball Valve
- Floating Ball Valve
- Trunnion Ball Valve
- Full Welded Ball Valve
- Gate Valve
- Forged Gate Valve
- Casting Steel Gate Valve
- Casting Iron Gate Valve
- Knife Gate Valve
- Globe Valve
- Forged Globe Valve
- Casting Steel Globe Valve
- Casting Iron Globe Valve
- Check Valve
- Forged Check Valve
- Lift Check Valve
- Disc Check Valve
- Hydraulic Valve
- Fixed Cone Valve
- Plunger Valve
- Hydraulic Control Valve
- Air Vent Valve
- Hydraulic Check Valve
- Plug Valve
- Sleeve Plug Valve
- Lubricated Plug Valve
- Orbit Plug Valve
- Marine Valve
- JIS Marine Valves
- Actuators
- Pneumatic Actuator
- Electric Actuator
- Hydraulic Actuator
- Positioner
- Accessories
- Pipe Fitting
- Joints
- Flanges
- Strainer
-
Applications
- Water treatment
- Oil and Gas
- Chemical and Petrochemical
- Mining and Metallaurgy
- Food and Beverage
- Slurry and Paper
- Power Generation
- Marines and Offshore
-
Resources
- Literature Download
- News Center
Knife Gate Valves
Specifically designed for thick slurries and media with suspended solids.
Features include: A sharp, beveled blade to cut through dense materials.
Resilient or metal-seated designs for tight shut-off.
Minimal cavity to prevent material accumulation.
Pinch Valves
Ideal for abrasive slurries with high solid content. Advantages include:
Full-bore design providing unrestricted flow.
Isolating the process media within a replaceable sleeve.
Minimal contact between moving parts and slurry.
Diaphragm Valves
Suitable for corrosive and abrasive slurries. Benefits feature:
A flexible diaphragm isolating the valve body from the flow path.
No internal pockets where solids can collect.
Excellent for throttling control.
High-Consistency (HC) Ball Valves
Engineered for pulp stocks with up to 20% fiber consistency. Key attributes:
Specialized trim and enlarged ports to prevent fiber plugging.
Robust sealing materials resistant to wear and chemical attack.
Smooth surface finish to minimize fiber adhesion.
Clamp Valves (Dump Valves)
Widely used in pulp processing and stock preparation. Characteristics include:
Fast-acting operation for batch processes.
Full, unobstructed flow path in the open position.
Durable construction for handling high-consistency pulp.
Specialty Control Valves
For precise regulation of chemical dosing, steam, and stock flow. Features include:
Anti-cavitation and noise-reduction trim.
Corrosion-resistant alloys (e.g., duplex stainless steel).
Advanced positioners for accurate control.
Valves for Slurry Applications
The longevity of valves in these services depends heavily on material choice:
Body Materials: Cast steel, stainless steel (CF8M, SS316), duplex stainless steel, and wear-resistant alloys.
Trim and Sealing: Hardened materials (Stellite, ceramic coatings), elastomers like EPDM, Viton, and polyurethane.
Special Coatings: Internal epoxy, rubber linings (e.g., natural rubber, Neoprene), or tungsten carbide overlay for extreme abrasion resistance.
Material Selection
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The resilient seated Butterfly valves and ball valves are applied widely in municipal water and drinking water supplying, each type serves a specific purpose, safeguarding the lifeline of clean water for urban populations.hese crucial components regulate the flow, pressure, and direction of water, ensuring efficient distribution and reliable service to communities.
Critical Application Areas
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The longevity of valves in these services depends heavily on material choice, including wear-resistant alloys, hardened materials, elastomers and internal epoxy, or extreme abrasion resistance.
The Materail of Durability
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our valves are built to excel in these harsh environments through: robust Design, precision manufacturing and rigorous Testing.
Engineering Advantages
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┃Slurry & Paper
SHIELD is committed to providing engineered valve solutions that meet these extreme challenges head-on, ensuring maximum uptime and minimum total cost of ownership.
At SHIELD Eng. and Tech. Co. Ltd., our valves are built to excel in these harsh environments through:
Robust Design: Finite Element Analysis (FEA) optimized structures for pressure integrity and long life.
Precision Manufacturing: Advanced CNC machining ensures perfect sealing surfaces and dimensional accuracy.
Customization: We tailor valve specifications—materials, actuation, lining, and port sizes—to your exact process conditions.
Rigorous Testing: Every valve undergoes pressure, leakage, and operational testing before shipment.
SHIELD Engineering Advantages
Related Valves for Slurry and Paper
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Forged Check Valve
In high-pressure and critical service applications across the oil and gas, power generation, and chemical processing industries, valve failure is not an option. This is where the superior strength and reliability of forged check valves become essential. Unlike their cast counterparts, these valves are manufactured from forged steel or stainless steel forged billets, undergoing a process that compacts the metal grain structure. The result is a component with exceptional mechanical properties, ide¥ 0.00Buy now
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Swing Check Valve
A disc check valve is a family of automatic valves that uses a swinging, tilting, or lifting disc to control flow direction. The core principle is simple: forward flow pressure pushes the check valve disc off its seat, allowing media to pass. When flow stops or reverses, the disc is forced back onto the check valve seat, creating a tight seal to prevent backflow. This mechanism protects crucial equipment like pumps and compressors.¥ 0.00Buy now
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Lift Check Valve
In the vast landscape of industrial valves, ensuring unidirectional flow and preventing backflow is critical for system safety and efficiency. Among the various check valve types, the lift check valve stands out for its robust design and dependable performance in challenging applications.¥ 0.00Buy now
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Casting Steel Globe Valve
In the world of industrial flow control, Cast Steel Globe Valves stand as a critical component for reliable shut-off and regulation services. Engineered to handle high-pressure and high-temperature media, these robust valves are the preferred choice across sectors like oil and gas, petrochemicals, power generation, and steam systems. Our company specializes in manufacturing premium-grade cast steel globe valves that meet and exceed stringent international standards, ensuring durability, safety,¥ 0.00Buy now
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Forged Globe Valve
In industries where reliability under pressure is non-negotiable, the forged steel globe valve stands as a critical component for fluid control. Known for exceptional strength and durability, this valve is engineered to manage the rigorous demands of high-pressure and high-temperature systems, making it a premier choice for steam service, oil and gas pipelines, and other industrial settings.¥ 0.00Buy now
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