6822M / 6844M

ABOUT PRODUCT

Plastic-Piston Actuator
2/2-Way Angled Metal Body Valve with Engineering Plastic-Piston Actuator. For On-Off Application (Rust Free Design),Normally Open Type.6822M For Flow Over The Seat,6844M For Flow Under The Seat
Size

15mm (½”) to 50mm (2”)

Body & Bonnet Material

Standard-Invesment casted SS-ASTM A351 CF8 (DIN1.4301) (SS-304). Optional-Investment casted CF8M(SS-316) (DIN1.4408) (GX6 Cr. Ni MO1810).

Seating

Standard-Soft seat PTFE backed by EPDM. Optional-VITON/EPDM/ Buna Nitrile.

Trim

Standard-SS AISI 304, Optional-SS AISI 316

Characteristic

On-Off, Normally Open

Working Temperature

On steam-continuous 155°C, Intermittent 180°C, EPDM 135°C, VITON 180°C.

Pilot Pressure

3.5 to 6 bar (refer to graph)

Operating Cycles per hour

15mm, 20mm, 25mm upto 600 cy/hr., 35mm and 50mm upto 300cy/hr.(tested on air, on other fluids this figure may vary).

Accessory

Air lock, position indicating limit switch box, solenoid valve, filter regulator gauge. Other accessories available on application

Back Pressure

Generally all models are suitable for back pressure upto 2.5 bar. However for specific application where higher back pressure is expected, refer to ‘AVCON’.

Construction

6822M-NO-Flow over the seat. 6844M-NO-Flow under the seat.

Pressure Temp. rating

As per ANSI Class 300

End Connection

Standard- BSP(F), Optional- NPT(F)[1], Socket weld[2], Flange end[5], Spigot end [6],TC end[7].

Leakage

As per ANSI B16.104-1976 PTFE seating class IV Drop Tight/Bubble Tight.

Stem Packing

Self adjusting, Spring loaded PTFE packing

Working Fluid Press

Refer to table below

Piston Packing

Buna Nitrile

Actuator Spring

IS 4454 Grade III, duly painted

Solenoid Mounting

Valve has built in Namur mounting Solenoid Valve can be fitted

Air Quality

Lubricated/Non-lubricated

Max. Operating

Refer to graph. Pressure differential

Application

For control of air, water, oil, gas, steam in textile, power generation, paper & pulp, chemical, petrochemical industries, PSA nitrogen system, air dryer, gas generator and others.

Technical Data

6822M-and-6844M.pdf

Diagrams

RELATED PRODUCTS