Pneumatic Butterfly Control Valve

NSV Pneumatic Butterfly Control Valve

This pneumatic butterfly valve is a high-performance angular travel control valve designed for large diameter and high-pressure applications. With a maximum size of DN1200 and pressure rating up to Class 2500, it features triple eccentric sealing for bubble-tight shut-off and reliable modulation in critical service. Suitable for steam, gas, or liquid media in power, oil & gas, and industrial plants.

Key Features

Angular Travel Design 90-degree rotation for on/off or modulating control

Maximum Size DN1200 Ideal for large-scale flow systems

Pressure Rating Up to 2500 LB Suitable for ultra-high-pressure critical processes

Triple Eccentric Sealing Ensures metal-to-metal seal with zero leakage and long service life

Pneumatic Actuation with Positioner Supports 4–20 mA signal input for precise control

Commonly used in boiler feedwater lines, main steam pipelines, and large-diameter process lines where high capacity and tight shut-off are required.

FAQ

1. Q: What’s the valves warranty?

A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.

2. Q:How can I get a quote?

A: If you request quote by preparing the product spec you want to request specifically through “Contact us or Feedback” of homepage, we will send reply to you ASAP. If the contents of homepage are not available, you can inquire to us via phone(86-577-67378616) or fax(86-577-67372367).

3. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

4. Q:Does your company have any agent/distributor with the exception of China?

A: At present,we have agent in Indonesia,Singapore,Canada,Mexico,Iraq,and welcome contact us if you would like to join us.