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Pneumatic Eccentric Hemisphere Valve

هوائي النمط الإيطالي الكرة صمام

Design and manufacturing:GB/T 12237, API 6D, ASME B16.34
The structural length: GB/T 12221, ASME B16.10
Connection forms:HG/T 20592-20605, GB/T 9112-9124, ASME B16.5
Inspection and test:API 598, GB/T 13927
Caliber:1/2″ ~ 48″ (DN15 ~ DN1200)
Pressure temporature level:ASME B16.34, GB/T 12224
Drive mode:Pneumatic
Pressure:PN1.6 MPa ~ PN40 MPa Class 150 ~ Class 2500

Product Overview

Operating Mechanism (Drive Mode):
• Pneumatic Actuation: Double-acting and single-acting pneumatic actuators available across all valve types.
• Optional Features:
o Positioners (for precise control)
o Limit Switches
o Solenoid Valves
o Fail-Safe Functionality (for critical applications)

Materials

• Body Materials:
o Carbon Steel, Stainless Steel (304, 316)
o PVC (for sanitary and PVC variants)
o Ductile Iron, Cast Iron
o Alloy Steel (for high-temperature or pressure applications)
• Seat Materials:
o PTFE, RPTFE (for soft-seal variants)
o Metal-to-Metal (for high-temperature or heavy-duty applications)

Certifications:

• Compliance: API, ISO 9001, CE, PED, SIL certification (for critical shut-off applications)

Product Features

• Precise Control: Pneumatic actuators provide rapid and accurate control of the valve opening and closing for cut-off applications.
• Versatile Applications: Available for high-temperature, corrosive, abrasive, and sanitary environments.
• Soft and Metal Seals: Available with PTFE soft seals for general industrial and sanitary applications and metal seals for high-temperature and abrasive environments.
• Reduced Maintenance: Durable construction minimizes wear and ensures long service life in industrial environments.
• Custom Options: Valves available with various optional accessories like positioners, limit switches, and fail-safe mechanisms.

Specification Parameters

Design and Manufacturing Standards:GB/T 12237, API 6D, ASME B16.34

Structural Length Standard: GB/T 12221, ASME B16.10

Connection Forms Standards:
o Flanged Connections: HG/T 20592-20605, GB/T 9112-9124, ASME B16.5
o Threaded Connections: NPT, BSP, per ISO 7-1
o Wafer Type: ASME B16.5
o PVC Connections: ISO 4422 (for PVC valves)

Inspection and Test Standards: API 598, GB/T 13927

Available Sizes (Caliber)

• Range: 1/2″ ~ 48″ (DN15 ~ DN1200)

Pressure-Temperature Rating

• Standard: ASME B16.34, GB/T 12224
• Pressure Range:
o PN1.6 MPa ~ PN40 MPa
o Class 150 ~ Class 2500
• Temperature Range:
o -20°C to +200°C (-4°F to 392°F) for soft-seal and standard applications
o Up to +450°C (842°F) for metal-sealed valves

Specification Applications

Applications:

o Oil & Gas
o Petrochemical Processing
o Water Treatment Plants
o HVAC Systems
o Chemical Processing
o Food and Beverage (Sanitary Butterfly Valves)
o Power Generation Plants
o Pulp and Paper Industry