J49H Needle valveDetailed product description：

Needle valves have good sealing performance and are generally used for sealing small flow, high pressure gas or liquid (such as steam, oil) media. The types of valves are generally divided into ordinary globe valves, needle globe valves, angle needle valves, instrument needle valves, bellows needle valves, valve groups, etc. The needle type globe valve has good sealing performance and long service life. Even if the sealing surface is damaged, only vulnerable parts need to be replaced to continue using it. The card sleeve type instrument valve has the advantages of easy installation and disassembly, tight connection, high fire prevention, explosion prevention, and pressure resistance, and good sealing performance. It is an advanced connection method valve in power plants, refineries, chemical plants, and instrument measurement pipelines. Manual globe valves and ball valves can be installed at any position in the pipeline.

Main component materials of J49H needle valve:

Part Name	valve body	valve stem	Valve base	filler	Packing valve cover	handwheel
J49H-320-DN3	Carbon steel	Chromium stainless steel		Polytetrafluoroethylene flexible graphite	Carbon steel	high-quality carbon steel
J49w-320P-DN6	Chromium nickel stainless steel	Chromium stainless steel	Chromium nickel stainless steel		stainless steel

Main performance specifications for J49H needle valve:

Model	Nominal pressure (Mpa)	Test pressure PS (Mpa)			Work pressure (Mpa)	Working temperature (℃)	Applicable Medium
		housing	Sealing (liquid)	Sealing (gas)
J49H-320	thirty-two	forty-eight	thirty-five point two	zero point six	thirty-two	P≤540℃	liquefied petroleum gas Water, acid, steam Oil products, etc
J49H-320P	thirty-two	forty-eight	thirty-five point two	zero point six	thirty-two	C≤425℃

Main appearance and connection dimensions of J49H needle valve:

Model

Nominal diameter DN (mm)

dimensions

Weight (kg)

L1

D1

D2

H

H1

L2

h

h"

M1

L3

J49H-320

three

sixty

sixty-five

fifty

eighty-eight

one hundred

sixty

fifteen

ф70

M20×1.5

sixteen

one point three

J49H-320P

six

sixty

sixty-five

fifty

eighty-eight

one hundred

sixty

fifteen

ф70

M20×1.5

sixteen

one point three