Manual Floating Stainless Steel Ball Valve Q41F--NIPO VALVE

Product Overview

Product Name : Q41F Ball Valve

Model Number: Q41F-16P DN80

Material Category: Stainless Steel

Material Grade: F304

Pressure Rating: PN16

Nominal Size: DN80

Actuation Method: Manual

End Connection: Flanged

Connection Specification :Raised Face (RF)

Design and Operation

The quarter-turn manual mechanism moves the floating ball between fully open and fully closed positions. The full-bore, straight-through configuration is intended to limit flow-path restriction when open. This stock configuration should be selected for isolation service; throttling duty requires a separate review of seat wear, velocity and operating frequency.

Media and Service Limits

The stock record lists water, steam and oil as applicable media and a maximum operating temperature of 150 C. Fluid compatibility depends on the actual composition, concentration, temperature and pressure, so compatibility of the F304 body and fluoroplastic seat must be checked against the project process data.

Structural

1. Floating ball design The ball is not supported by upper‑lower trunnion shafts. The ball floats axially. Under medium pressure, inlet‑side pressure pushes the ball against the downstream seat to realize sealing.

2. Full port / Reduced port optional Full‑port version keeps the same bore as pipeline for minimum flow resistance; reduced‑port for cost‑effective general service.

3. Flanged end connection Raised face flange connection, easy installation, disassembly and on‑site maintenance.

4. PTFE soft seat insert Non‑metallic PTFE seat, bubble‑tight bi‑directional shut‑off performance.

5. Anti‑blow‑out stem Anti‑blow‑out stem structure prevents stem blowing‑out under internal pressure. Anti‑static device is optional to dissipate static charge between ball and seats.

6. Simple compact body structure Small part count, simple internal construction. Operating mode: lever handle, gearbox, pneumatic or electric actuator configurable.

Note: Floating ball structure is mainly suitable for small & medium size (DN15‑DN200). For large‑size high‑pressure, trunnion ball valve Q347F is preferred.

Advantages

• Simple floating‑ball structure, compact layout, competitive cost for small‑medium bore.

• PTFE soft seat achieves bubble‑tight bi‑directional zero‑leak shut‑off.

• Fast 90‑degree quarter‑turn opening / closing, quick on‑off operation.

• Low flow resistance, full‑port option allows unobstructed media flow.

• Flanged connection, reliable joint strength, convenient for installation and replacement.

• Wide media compatibility: water, oil, gas, general chemical fluid.

• Flexible actuation options: handle lever, gear, pneumatic, electric for manual or automatic control.