Concentric electric butterfly valve / soft seal with resilient seat/low torque design

Description

DCL concentric soft seal butterfly valves are widely used for Commercial Heating & Air Conditioning, Wastewater & Water Treatment, Seawater/Desalination, Food & Beverage Processing, Pulp & Paper Processing, oil & gas etc.

NBR seat is always used for oil related medium.

EPDM is the most commonly used material with medium temperature ≤ 200℃.

PTFE seat is always used for high temperature medium that is ≤ 300℃, and also has the best chemical stability.

Specification

Features

Soft seal butterfly valve

• Body type: wafer or lug
• Body material: Ductile iron, SS304(CF8), SS316(CF8M)
• Seat material: EPDM, PTFE, NBR(Buna-N) available
• sure PN: Designed for commercial and industrial applications up to 200 psi
• Stem design: Available in square shaft for easy mounting of actuators
• Top flange: ISO 5211 direct mounting of actuators
• One piece shaft: Maintains disc position.
• Shaft pins: Enables a vibration free connection between the shaft and the disc..
• O ring seal: Provides a seal to interior stem and bushings.
• Bushings: Provide correct alignment of shaft through the body and reduces torque.
• Stem seal: Positive seal in both directions to prevent leakage.
• Bi-directional body & seat design, replaceable seat optional
• Backed seat support: Prevents stem leakage and high valve torque from poor installation.

Electric actuators

• 90° operation, middle position optional
• All 40Cr alloy spur gears, hard copper alloy worm gear, metal tapered roller bearings
• Permanent lubricated without maintenance for over 10000 full range life cycles
• Corrosion protection aluminum alloy housing with thermally bonded polyester coating
• Heavy duty motor with thermal overload protection
• Allen wrench manual override/handwheel optional
• Flat or dome indicator for valve position
• ISO5211 multi flange mounting
• CSA certified per UL standard/CE marked