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3-Position Pneumatic Shutoff Ball Valve Assembly with Anti-Water Hammer Staged Protection
Product Details:
| Place of Origin: | Shanghai, China |
| Brand Name: | VESON |
| Certification: | ISO 9001:2015 SGS |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Piece |
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| Price: | USD 180-1200 / Piece |
| Packaging Details: | VESON branded plywood case with shock-proof foam insert, export-grade packaging |
| Delivery Time: | 5-7 working days for stock, 20-30 days for production |
| Payment Terms: | T/T,L/C,PayPal,Western Union |
| Supply Ability: | 3000 Pieces per Month |
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Detail Information |
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| Valve Type: | 3-Position 2-Way/3-Way Ball Valve | Actuator Type: | 3-Position Pneumatic Actuator (Spring Return) |
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| Size Range: | DN15 To DN150 (1/2" To 6") | Pressure Rating: | PN16 / PN40 / Class 150 / Class 300 |
| Body Material: | SS304, SS316, WCB Carbon Steel | Seat Material: | PTFE, RTFE, PEEK |
| Air Supply: | 4-8 Bar (60-120 Psi) | Operating Temperature: | -20°C To +180°C |
| Control Sequence: | Open (100%) - Mid-Stroke (30-50%) - Closed (0%) | End Connection: | Flanged ANSI B16.5, Threaded NPT/BSP |
| Highlight: | Pneumatic Shutoff Ball Valve Assembly,3-Position Shutoff Ball Valve Assembly |
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Product Description
3-Position Pneumatic Shutoff Ball Valve Assembly with Staged Anti-Water Hammer Protection
The VESON VSO-3P-WH 3-Position Pneumatic Shutoff Ball Valve Assembly is engineered specifically for batch loading terminals where abrupt valve closures cause destructive water hammer and piping vibration. The 3-position staged control delivers a smooth Fast Fill → Slow Dribble → Complete Stop sequence, protecting your piping system while maintaining precise dosing accuracy.
How 3-Stage Control Protects Your System
| Stage | Valve Position | Action |
| Stage 1 | 100% Open | Rapid bulk fill at full flow rate |
| Stage 2 | 30-50% Mid-Stroke | Slow dribble feed for precise topping-off |
| Stage 3 | 0% Closed | Bubble-tight shutoff (Class VI) - zero water hammer |
Key Features
- 3-Position Pneumatic Actuator: Spring-return design with mid-stroke position capability for staged flow control
- Anti-Water Hammer Sequence: Eliminates pressure surges during valve closure, reducing pipe stress and prolonging system life
- Configurable Mid-Stroke: Adjustable 30-50% intermediate position for process-specific flow rates
- Bubble-Tight Shutoff: Class VI leakage at final closed position for zero product loss
- Manifold Reduction: Replaces multi-valve manifold setups, reducing skid footprint and leak paths
- Pre-Wired Solenoid Bank: Factory-configured solenoid valves for all 3 positions with terminal strip
Technical Specifications
| Parameter | Specification |
| Valve Type | 3-Position 2-Way / 3-Way Ball Valve |
| Actuator Type | 3-Position Pneumatic Actuator (Spring Return) |
| Size Range | DN15 to DN150 (1/2" to 6") |
| Pressure Rating | PN16 / PN40 / Class 150 / Class 300 |
| Body Material | SS304, SS316, WCB Carbon Steel |
| Seat Material | PTFE, RTFE, PEEK |
| Air Supply | 4-8 bar (60-120 psi) |
| Operating Temperature | -20°C to +180°C |
| Control Sequence | Open (100%) → Mid-Stroke (30-50%) → Closed (0%) |
| End Connection | Flanged (ANSI B16.5), Threaded (NPT/BSP) |
| Shutoff Class | Class VI (Bubble-Tight) |
| Certification | ISO 9001:2015, CE, SGS |
Target Industries
- Oil & gas terminal loading (truck, railcar, drum filling)
- Fine chemical batch dosing systems
- Liquid food & beverage batching
- Tank farm product transfer stations
- LPG and cryogenic loading skids
Each assembly undergoes full factory loop testing with SS316 hard tubing before shipment. FAT documentation included. Contact us to discuss your specific batch loading requirements.
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