Barss Butterfly Valve For boats

• Features of marine brass butterfly valve:

• Wafer centerline butterfly valve is mainly composed of valve body, rotating shaft, valve plate, valve seat and drive mechanism (handle, worm gear, pneumatic device or electric device), etc. 

• The drive mechanism drives the rotating shaft and valve plate to rotate to achieve opening and closing and control flow the goal of. The characteristics of the wafer butterfly valve are as follows:

• The structure is simple, small and light, easy to transport, install, and disassemble; 90° open and close, quick opening and closing. 

• The operating torque is small, labor-saving and lightweight; the sealing performance is good, the service life is long, and zero leakage can be achieved;

• the selection of different parts and materials can be applied to a variety of media; the flow characteristics are similar to straight lines, and the adjustment performance is good.

Adoptive Standards:

Valve Design: API 609, MSS SP-67

Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1

Pressure Test: API 598

Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

Top Flange: ISO5211

Features:

Single Eccentric Disc-Shaft

Anti-Blow Out Stem

Bi-Directional

Fire safe Design

Low Friction Body Seat

Zero Leakage

Standard Test :

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

Seat Test: 1.1 times the working pressure with water.

Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

Special Test: On request, any other test can be carried out according to special instruction by client.