Explosion-proof Electric Butterfly Valve

The Explosion-proof Electric Butterfly Valve is an automated control valve specifically designed for flammable and explosive environments. It combines the compact structure of a wafer butterfly valve with an explosion-proof electric actuator, making it widely used in high-risk industrial sectors such as petroleum, natural gas, and chemical processing.

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Basic Parameters

Nominal Bore (DN): DN40~800
Operating Power: AC110V / AC220V / AC380V / DC24V
Medium Temperature: -20℃~+120℃
Ambient Temperature: -30℃~+60℃
Nominal Pressure: 0.1~2.5MPa
Actuation Time: 15S / 30S / 60S
Control Method: Modulating or On/Off Control

Connection & Sealing

Connection Types:
- Wafer Type - Flange Type
Seal Types: Soft Seal
Test Pressure - Shell: 1.76MPa
Test Pressure - Seal: 2.4MPa

Material Specifications

Body & Internal Components

Body Material: WCB, QT450-10, HT200, HT250, SUS304, SUS316
Disc Material: WCB, QT450-10, HT200, HT250, SUS304, SUS316
Shaft Material: 2Cr13

Sealing Components

Sealing Ring: Nitrile Oil-Resistant Rubber, EPDM, PTFE, PPL, etc.
Stem Seal: NBR, HNBR
Packing: Flexible Graphite

Suitable Media

  • Water
  • Oil
  • Gas
  • Corrosive Medium
  • Other Media

Explosion Protection

Ex db â…¡C T6 Gb
Flameproof enclosure with increased safety
Explosion Protection
Flameproof (d) + Increased Safety (b)
Gas Group
â…¡C (Hydrogen, Acetylene)
Temperature Class
T6 (≤85°C)
Equipment Protection Level
Gb (Zone 1 & 2)

Standards Compliance

Design: GB/T 12238-2008
Flange:
- GB/T 9124.1-2019 - GB/T 9124.2-2019 - GB/T 17241.6-2008
Face-to-Face: GB/T 12221-2005
Testing: GB/T 13927-2008

Installation Dimensions of Explosion-proof Electric Butterfly Valve

Nominal
Diameter

DN(mm)
LDN-ΦDH2H1W2W1
40331254-Φ1848276217150
5042.61254-Φ1870398217150
6545.61454-φ1876375217150
8045.61608-φ1889381217150
10051.61804-φ22104414217150
12555.62104-φ22120429217150
15055.62404-φ23139465217150
20059.62954-φ23175536268180
25067.63554-φ28203562268180
30077.64104-φ28242561268180
350774704-φ28277.5562268180
40086.55254-φ30309613354273
450105.65854-φ30337633354273
500131.86504-φ33361693354273

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