Three valve group

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Three valve group

Model: QFF3
Nominal diameter: DN15mm
Operating temperature: P≤540 ℃, C≤425 ℃
Working pressure: 32.0MPa
Test pressure: 16.0MPa
Main material: Stainless steel
Medium: LPG water, acid, steam, oil, etc.

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QFF3 three-valve needle valve Overview

QFF3 three-valve needle valve by the high and low pressure valves and balance valve integral and supporting the use of differential pressure transmitter, its role is to differential pressure transmitter positive and negative measuring room and Pressure points turn on or off, or positive and negative pressure measurement chamber open and conduction. Pressure, pressure points directly connected with the steel pipe, the connection using welding, other connections can be used.

QFF3 three-valve needle valve main components and materials

Part Name

Body

Valve stem

Valve base

filler

Packing valve cover

Handwheel

QFF3

160

DN3-50

Carbon steel

Chrome stainless steel

PTFE, flexible graphite

Carbon steel

High-quality carbon steel

QFF3

320P

DN3-50

Chrome nickel stainless steel　

Chrome stainless steel

Chrome nickel stainless steel

stainless steel

QFF3 three-valve needle valve main performance specifications

model	Nominal pressure (MPa)	Test pressure (MPa)			Working pressure (MPa)	Working temperature (℃)	Suitable media
		Housing (MPa)	Sealed (liquid)	Seal (gas)
QFF3 320 DN3-50	32.0	48.0	35.2	0.6	32.0	P ≦ 540 ° C	Liquefied petroleum gas water, acid, steam, oil and so on
						C ≤ 425 ° C