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    LIPGTRBNnormally closed pneumatic lined diaphragm opening is driven by compressed air film resistance to compression of the spring, so that axial movement of the stem valve driven by increased achieve open, which expire source, due to the action of the spring preload leaving the valve is in a normally closed position. When equipped with a hand operated valve parts, when the air supply is interrupted when a fault occurs, and valves needed to open an emergency situation, you can make the counter-clockwise rotation of the hand wheel valve open.

��Ҫ���g(sh��)����(sh��)The main technical parameters��

�����ȼ�(j��)��1.0MPA                 �m�Üضȣ�≤100��

��Դ����Ҫ��0.7MPA             �m�ý��|(zh��)����A�ȸ��g�Խ��|(zh��)

�y�w���ϣ����P�316L             �y�w�����P�316L

�r�PTFE                       ��Ĥ��PTFE

��ף���ī�T�F                   ������̼�

�y�U��̼�                       ��݆�����

Pressure Rating: 1.0MPA             Temperature: ≤100 �� 

Air pressure requirements: 0.7MPA     Medium: acid and other corrosive media 

Body material: stainless steel 316L     valve cover: Stainless steel 316L 

Lining; PTFE                      Diaphragm: PTFE 

Cylinder: Ductile iron                piston: Carbon 

Stem: Carbon steel                  handwheel: Malleable

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The method may be faulty and treatment

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Failure may occur ԭ��The reason ��������Remedy

��݆�D(zhu��n)�\(y��n)���`�� �y�U�Ϸe���۹����ݼy�p��

Plot there is dirt or damage to the valve stem threads ����۹���������ע�ԝ�(r��n)����Remove dirt or trimming and injection with a lubricant

 

�y�U��ĸĥ�p������  Stem nut wear or crack ���Q�y�U��ĸ

Replace the stem nut

�y�U����   Stem bending У������Q�y�U

Correction or replacement of the valve stem

 

�y�w�c�y�w�B��̎�B©Body and bonnet junction leakage �B����˨�o�̲�����Connecting bolt uneven   ����o��Evenly tighten

 

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