Needle valves
Needle valve to regulate flow rates precisely
Needle valves are being used in industrial settings, whenever a liquid or gaseous medium needs to be regulated precisely, or when the flow rate needs to be metered. Due to its unique construction, the needle valve is the ideal tool for such precise regulation.
high pressure needle valve 1/2" inch block execution made of stainless steel 1.4571 pressure up to max. 400 bar
diameter:
1/2" inch
design:
block execution
connection:
female thread
material:
stainless steel 1.4571
media:
liquid and gaseous media
high pressure needle valve 3/4" inch block execution made of stainless steel 1.4571 pressure up to max. 200 bar
diameter:
3/4" inch
design:
block execution
connection:
female thread
material:
stainless steel 1.4571
media:
liquid and gaseous media
high pressure needle valve 3/8" inch block execution made of stainless steel 1.4571 pressure up to max. 400 bar
diameter:
3/8" inch
design:
block execution
connection:
female thread
material:
stainless steel 1.4571
media:
liquid and gaseous media
high pressure needle valve 1" inch block execution made of stainless steel 1.4571 pressure up to max. 200 bar
diameter:
1" inch
design:
block execution
connection:
female thread
material:
stainless steel 1.4571
media:
liquid and gaseous media
high pressure needle valve 1/4" inch block execution made of stainless steel 1.4571 pressure up to max. 400 bar
diameter:
1/4" inch
design:
block execution
connection:
female thread
material:
stainless steel 1.4571
media:
liquid and gaseous media
needle valve 1/2" inch block execution made of steel (blue galvanized) for liquid and gaseous media pressure up to max. 400 bar
diameter:
1/2" inch
design:
block execution
connection:
female thread
material:
steel (blue galvanized)
media:
liquid and gaseous media
needle valve 1/8" inch block execution made of brass for liquid and gaseous media pressure up to max. 100 bar
diameter:
1/8" inch
design:
block execution
connection:
female thread
material:
brass
media:
liquid and gaseous media
needle valve 1/2" inch block execution made of brass for liquid and gaseous media pressure up to max. 100 bar
diameter:
1/2" inch
design:
block execution
connection:
female thread
material:
brass
media:
liquid and gaseous media
How the needle-valve works
The body of the needlevalve is similar to the ball valve with thread connections. However, there is now a rotatable ball to direct the medium. Instead, a spindle, usually made of stainless steel with a conical shape towards the lower end does this. Within the body, behind the thread connection at the lower part of the entrance there is a reduced notch that reaches approximately up to the middle of the needle valve, in a horizontal direction. From the center of the needle valve on, the notch (still heavily reduced in diameter) changes its direction and becomes vertical. So if the handle of the valve moves, the conical shape of the spindle slowly seals the vertical notch. The conical shape of the spindle thus allows the precise regulation of the flow rate.
Order needle-valves that regulate reliably, straight from NieRuf at low cost
The NieRuf Industrial Valves online shop provides needle-valves from stainless steel (1.4571), steel or brass. Our needle valves come in nominal sized of 1/8“, ¼“, ½“ to 1” and up to 2”. The pressure range reaches from 0 to 400 bar, depending on the valve you choose. Our team at NieRuf would love to help you find the right needle-valve. Or you could simply order it from our online shop, at low cost and with rapid delivery.
There for you
Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.
You can reach us from Monday to Friday at +497143 9666900 and any time at info@nieruf.de
Quality
Our certified quality management according to DIN EN ISO 9001: 2015 is part of our DNA. With our test stands we can carry out pressure tests with up to 350 bar with air and water as well as leak tests according to DIN EN 122661.
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Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.
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