Control valve with Fisher Positioner

NSV Control valve with Fisher Positioner

This 1-inch pneumatic control valve features a compact globe body with a pneumatic diaphragm actuator, designed for precise flow regulation of liquids, gases, and steam. The valve modulates flow proportionally in response to a pneumatic signal, with the valve plug position determining the flow passage area. It is suitable for low-flow industrial process control where accurate regulation and reliable shutoff are required.

Key Features

1-inch Size: DN25 nominal diameter, ideal for small-bore process lines and precise flow control applications.

Pneumatic Diaphragm Actuator: Responds to signal pressure (typically 0.2–1.0 bar) to position the valve plug with high accuracy.

Flow Characteristics: Available in equal-percentage or linear characteristics to suit different process control requirements.

Fail-Safe Action: Spring-return design provides two options: fail-close (valve closes on air failure) or fail-open (valve opens on air failure).

Soft-Seated Option: PTFE or soft-seated plug available for bubble-tight shutoff (Class VI leakage per IEC 60534-4).

Wide Material Selection: Body materials include cast iron, carbon steel (A105), and stainless steel (CF8/CF8M) to suit various media and environments.

Typical Applications

Widely used in chemical processing, petrochemical plants, power generation, and industrial process systems requiring precise small-flow regulation. Suitable for media including water, steam, oil, and non-corrosive gases.

FAQ

1. Q: I want to be registered as your agency.?

A: Defined inspection and manager’s approval shall be required for being registered as the company’s agency. For specific application method, please consult with sales team. If you are registered as the company’s agency, “Agency Certificate” will be issued.

2. Q:Are you manufacturer or trading company?

A: We’re manufacturer,but our factory name is not named NSV due to we’re professional in promotion NSV brand with best service,and also have sold to many end user success.

3.Q: Do u provide sample,is it free or extra ?

A: Yes, we could offer the sample, due to its value,we can supply free sample that small value and you afford the freight,but also welcome visit our factory to inspect quality.