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High-Performance Disc Spring Stack with Corrosion-Resistant Stainless Steel for Series-Parallel Stack Type Applications
High-Performance Disc Spring Stack with Corrosion-Resistant Stainless Steel for Series-Parallel Stack Type Applications
Specifications
Spring Rate :
Customizable (series, parallel, progressive)
Hysteresis Reduction :
Minimized
Friction Mitigation :
Guide sizing, lubrication coatings (zinc phosphatization, MoS2)
Sealing Performance :
Ensures reliable emergency closing
Material Options :
Spring Steel (51CrV4 / 1.8159), Stainless Steel (SUS301, SUS316, 17-7PH), Nickel Superalloys (Inconel 718, Inconel X-750)
Thermal Relaxation :
Prevents thermal relaxation
Load Capacity :
Increased in parallel stacks
Deflection Range :
Increased in series stacks
Outer Diameter :
10.0 mm to 800.0 mm
Force Capacity :
High initial seating force
Pressure Handling :
High-pressure flange bolting systems
Wear Compensation :
Compensates for packing wear
Lifespan :
Extended under constant cycling
Operating Temperature :
-200°C to +650°C
Application :
Quarter-turn ball valves, linear gate valves
Stack Type :
Series-Parallel (Combined)
Thermal Expansion :
Absorbs sudden thermal expansion
Compatibility :
Pneumatic, hydraulic, electric actuators
Manufacturing Standards :
DIN 2093 (Types A, B, C), ISO 19619
Deflection Capability :
Long sealing strokes
Description
Industrial Valve Actuators & Severe Process Piping
High-Performance Disc Spring Stack for Industrial Valve Actuators
In the demanding environments of fluid control and chemical processing, maintaining precise, continuous torque and linear force is essential for operational safety. Jiangsu Sanzhong Elastic Technology Co., Ltd. offers precision-engineered Disc Spring Stack configurations specifically optimized for heavy-duty industrial valve actuators and emergency shutdown (ESD) systems. When conventional coil springs fail due to space constraints or high force requirements, our custom-stacked disc springs provide a reliable solution, ensuring consistent valve seating and preventing catastrophic fluid leakage.
SERIES-PARALLEL (COMBINED) STACK TYPE
This configuration provides BOTH increased load capacity AND increased deflection capability.
[Diagram showing series-parallel disc spring configuration]
Key Benefit: Ideal for large-diameter control valves requiring high initial seating force combined with long sealing strokes.
Our engineering team analyzes the specific force-deflection curves required for automated valve systems. By configuring the Disc Spring Stack in various orientations—such as series, parallel, or progressive combinations—we customize the spring rate to match the exact mechanics of pneumatic, hydraulic, or electric actuators. This precision minimizes friction loss, reduces hysteresis, and extends the operational lifespan of the entire valve assembly, even under constant cycling.
Target Client Applications
  • Pneumatic & Hydraulic Valve Actuators: Integrated into spring-return actuators for quarter-turn ball valves and linear gate valves to ensure reliable emergency closing.
  • Petrochemical Control Valves: Installed within packing glands and main control valve stems to compensate for packing wear and thermal relaxation.
  • Refinery Piping Infrastructure: Positioned on high-pressure flange bolting systems to absorb sudden thermal expansion and prevent fugitive emissions.
Technical Specifications & Product Parameters
Available Materials High-grade Spring Steel (51CrV4 / 1.8159), Corrosion-Resistant Stainless Steel (SUS301, SUS316, 17-7PH), and Nickel Superalloys (Inconel 718, Inconel X-750)
Manufacturing Standards Fully compliant with DIN 2093 (Types A, B, and C) and international ISO 19619 quality management specifications
Outer Diameter (OD) Availability From 10.0 mm up to 800.0 mm to accommodate large-scale actuator shafts
Friction Mitigation Specialized guide sizing and lubrication coatings (such as zinc phosphatization or MoS2) applied to minimize internal friction within the stack
Operating Temperature Limits Engineered to perform reliably from cryogenic temperatures -200°C up to extreme thermal environments of +650°C (when using superalloys)
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High-Performance Disc Spring Stack with Corrosion-Resistant Stainless Steel for Series-Parallel Stack Type Applications

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Product Detail
Spring Rate :
Customizable (series, parallel, progressive)
Hysteresis Reduction :
Minimized
Friction Mitigation :
Guide sizing, lubrication coatings (zinc phosphatization, MoS2)
Sealing Performance :
Ensures reliable emergency closing
Material Options :
Spring Steel (51CrV4 / 1.8159), Stainless Steel (SUS301, SUS316, 17-7PH), Nickel Superalloys (Inconel 718, Inconel X-750)
Thermal Relaxation :
Prevents thermal relaxation
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High-Performance Disc Spring Stack with Corrosion-Resistant Stainless Steel for Series-Parallel Stack Type Applications

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
DIN 2093 Disc Spring, Belleville Disc Spring, DIN 6796 Washer
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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