Industrial valve engineering & manufacturing+86 130 4329 2503 · info@greysen.cn

Application-led valve selection

Flow-control solutions for demanding industries.

Greysen helps contractors, distributors and engineering teams match valve type, materials, pressure class and actuation to real operating conditions.

Industries

Built around the system, not only the valve.

Medium, pressure, temperature, flow conditions, installation position, operating frequency and project standards are reviewed before configuration.

01

Water & Wastewater

Isolation, non-return, pressure control and air management for treatment plants, pumping stations and distribution networks.

Typical products

Butterfly valves, resilient seated gate valves, silent check valves, pressure reducing valves and air release valves.

02

HVAC & District Energy

Hydronic isolation, balancing and equipment protection for chilled-water, heating and district-energy systems.

Typical products

Butterfly valves, ball valves, double regulating valves, strainers and expansion joints.

03

Power & Cooling Water

Large-bore and automated valves for cooling-water intake, circulation and balance-of-plant utilities.

Typical products

Double flanged butterfly valves, check valves, strainers, actuators and expansion joints.

04

Chemical & Process

Material-compatible isolation and control for corrosive or temperature-sensitive process media.

Typical products

Lined butterfly valves, thermoplastic ball valves, stainless valves and application-specific seats.

05

Mining & Slurry

Robust isolation solutions for tailings, mineral processing, water recovery and abrasive slurry handling.

Typical products

Knife gate valves, heavy-duty butterfly valves, check valves and abrasion-resistant trim.

06

Fire & Building Services

Dependable isolation and non-return functions for fire-water networks, pump rooms and high-rise utility systems.

Typical products

Gate valves, butterfly valves, check valves, air valves and pressure-control assemblies.

Engineering review

Information that improves valve selection.

Share the line medium, nominal size, operating and design pressure, temperature range, flange standard, preferred materials, actuation method and required documentation. For control duties, include normal, minimum and maximum flow plus upstream and downstream pressure.

Project support

  • Valve type and material review
  • Pressure class and end-connection confirmation
  • Manual, pneumatic and electric actuation
  • Drawings, data sheets and inspection documents
  • Export packing and shipment coordination

Talk to an engineer

Specify the right butterfly valve for your project.

Request a quotation