Non Rising Stem Flanged Gate Valve

Product Introduction:

Non Rising Stem Flanged Gate Valve is also called rotating stem gate valve (also called dark stem wedge gate valve). The valve stem nut is set on the gate. The rotation of the handwheel drives the rotation of the valve stem to lift the gate. Usually there is a trapezoidal thread at the bottom end of the valve stem. The thread on the bottom end of the valve and the guide groove on the disc will rotate the gate. It becomes linear motion, that is, the operating torque is changed to operating thrust.

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Description

Technical Parameters

Production
When Non Rising Stem Flanged Gate Valve is opened, when the lift height of the gate is equal to 1:1 times the valve diameter, the fluid passage is completely unblocked, but this position cannot be monitored during operation. In actual use, the apex of the valve stem is used as the mark, that is, the unmovable position, as its fully open position. In order to take into account the locking phenomenon caused by temperature changes, it is usually opened to the top position, and then rewind 1/2 to 1 turn, as the position of the fully open valve. Therefore, the fully open position of the valve is determined by the position of the gate (that is, the stroke).

Specification

Material	Body	Ductile Iron,QT450
	Seal	Ductile Iron,QT450 Cover by NBR
	Stem	2CR13 Stainless Steel
	Support	Ductile Iron,QT450
Working Pressure	16 bar
End Connections	Flange x Flange
Flange	BS4504 / ANSI150LB
Size	DN65
Valve Type	NRS Gate Valve
Media	Water

FAQ:

Q:Where is your factory located?

A:Our factory address is :NO. 1,Building 29#,B Zone,Chenghui International Trading Market,Xiamei Town,Nan'an City,Fujian Province,China.

Q:How can i get to your factory?

A:Our factory is near jinjiang Airport or quanzhou Railway Station.

4. Q:If i will need to stay in your place for few days, is that possible to book the hotel for me?

A:It’s always my pleasure, hotel booking service is available.

Pre-sale services:

1. Providing professional technical support.

2. Send the product catalog and instruction manual.

3. If you have any question PLS contact us online or send us email, we promise we will give you a reply at the first time!

4. Personal call or visit are warmly welcome.

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1) Less effort to open and close.<br>

2)The flow direction of the medium is not restricted, does not disturb the flow and does not reduce the pressure <br>

3)The main material is ductile iron, lighter weight<br>