Electric Pneumatic Dual-Mode Pinch Valve Assembly Built for Abrasive Media Transport Pipeline Systems
Price:
USD 600-3500 / Piece
MOQ:
1 Piece
Delivery Time:
7-10 working days for stock, 25-35 days for production
Brand:
VESON
Product Description
Electric Pneumatic Dual-Mode Pinch Valve Assembly for Abrasive Media Transport Pipelines
The VESON Dual-Mode Pinch Valve Assembly provides the ultimate in reliability for critical abrasive slurry transport pipelines by combining an electric actuator for precise modulating control with a pneumatic spring-return actuator for fail-safe emergency shutdown. This redundant control architecture ensures uninterrupted protection in the most demanding mining and mineral processing operations.
Dual-Mode Redundancy
| Mode | Actuator | Function |
| Primary (Normal) | Electric Multi-Turn | Precise modulating flow control via 4-20mA DCS signal |
| Secondary (Emergency) | Pneumatic Spring-Return | Automatic fail-close on power loss or ESD signal |
Key Features
- Redundant Control: Dual actuator system provides independent primary and emergency shutdown capability for SIL-rated safety loops
- Seamless Switching: Pneumatic fail-safe actuator automatically engages within 1 second of power loss without external intervention
- Full-Bore Flow Path: No internal obstructions or dead zones eliminate clogging in high-solids slurry service
- Field-Replaceable Sleeve: Quick-change sleeve design allows on-site replacement without special tools or valve removal
- Integrated Limit Switches: Both actuators include mechanical and proximity limit switches for comprehensive position feedback
- Skid-Mounted Package: Complete pre-assembled, pre-wired, and factory-tested package reduces field installation time by 60%
Technical Specifications
| Parameter | Specification |
| Valve Type | Dual-Mode Pinch Valve (Electric + Pneumatic) |
| Size Range | DN50 to DN400 (2" to 16") |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Body Material | Ductile Iron Epoxy Coated, SS316 |
| Sleeve Material | Natural Rubber, EPDM, NBR, Viton |
| Primary Actuator | Electric Multi-Turn (4-20mA Modulating) |
| Secondary Actuator | Pneumatic Spring-Return (Fail-Safe) |
| Air Supply | 4-8 bar (60-120 psi) |
| Operating Temperature | -40°C to +120°C |
| End Connection | Flanged (ANSI B16.5 / DIN PN16) |
| Safety Integrity | SIL 2 Capable (IEC 61508) |
| Certification | ISO 9001:2015, SGS |
Target Applications
- Critical slurry transport pipelines with ESD requirements
- Mining concentrate and tailings pipelines
- Mineral processing thickener underflow
- Dredging discharge pipelines
- Power plant ash handling systems
Complete package includes pre-wired junction box, factory loop test report, SIL declaration of conformity, and full material traceability. Contact our automation team for custom control configurations.
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Company
Veson Valve Ltd.
Contact Person
Judy.Zhao