904L Through-Conduit Knife Gate Valve

NSV 904L Through-Conduit Knife Gate Valve

The NSV 904L through-conduit knife gate valve features a full-bore, cavity-free design with a sharp-edged gate that cleanly cuts through fibers, slurries, and soft solids for reliable shut-off. Its through-conduit flow path matches the pipeline’s internal diameter, eliminating dead zones and preventing media buildup which making it ideal for high-solids, viscous, or settling-prone applications. Cast from super austenitic stainless steel 904L, the valve ensures long-term structural integrity and corrosion resistance in aggressive environments.

Key Features

Body material: 904L

Type: Through-Conduit Knife Gate Valve

Size range: 2"-14" (DN50-DN350)

Pressure rating: PN16 / Class 150

End connection: Wafer / Flanged (RF / FF)

Operation: Handwheel or pneumatic actuator (optional)

Seat: Metal-to-metal sealing

Temperature range: -29℃ to +400℃

Media: Slurries, sludge, powders, pulp, tailings, seawater, acidic solutions

Standards: MSS SP-81, ASME B16.34

Fire safety: API 607 certified

Typical Applications

Black liquor lines in pulp mills, mine tailings transport, wastewater sludge systems, chemical slurry reactor outlets, FGD gypsum slurry pipelines in power plants.

FAQ

1.Q:I want to know how to contact the person in charge.

A: When you call representative call number of company(86-577-67378616), sales team will receive your call if there is no special situation. If you let us know your inquiry, we will put you through to the person in charge. If you need a personal phone number, you have to receive it from the person in charge directly after phone call.

2. 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.
3. 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.

4. 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.