Specifications

Eccentric Semi Ball Valve
Also name:Eccentric semisphere Valve

Eccentric Semi Ball Valve

 

 

Description

 

This valve is used for medias like water,oil and gas with high flow rate,high concentration impurities.it is an ideal updated or substituted valve for traditional gate valve and butterfly valve and other special valves.

 

It has an excellent rigidity,low water loss, good antifouling and decontaminating performance,good leak-proof performance. long lasting working life.

 

 

Eccentric Semi Ball Valve Structure and Features 

Metal seated eccentric semi ball valve 

 

Resilient seated eccentric semi ball valve 

 

Features

 

1 High rigidity

 

2 The valve flow way is designed as direct-flow shape full bore,big flow area,and low flow       resistance

 

3 Free(zero) leak for Bidirection

 

4 no wear and abrasion to sealing face.

 

5 Self-cleaning sealing face

 

6 Compact structure, be convenient for handling,installation,uninstallation,maintenance and repairs

 

Eccentric Semi Ball Valve Structures drawing

 

Materials

 

 

 

 

 

Serial No.	Components name	Materials		Materials Code
		Metal seat	Resilient seat	Metal seat	Resilient seat
1	Valve body	Ductile iron	Ductile iron	QT450-12	QT450-12
2	Eccentric crank ball	Ductile iron	Ductile iron	QT450-12	QT450-12+NBR
3	Ball cap	Stainless steel		1Cr18Ni9
4	Fasteners	Stainless steel	Stainless steel	A2-70	A2-70
5	Valve seat	Stainless steel	Pure nickel welding	1Cr18Ni9	Ni
6	Clamping ring	Ductile iron		QT400-10
7	Bonnet	Ductile iron	Ductile iron	QT450-12	QT450-12
8	Upper bearing	Bronze	Bronze	ZCuAl10Fe3	ZCuAl10Fe3
9	Sealing sets	NBR	NBR	NBR	NBR
10	End bearing	Bronze	Bronze	QSn6.5-0.1	QSn6.5-0.1
11	Lower bearing	Bronze	Bronze	ZCuAl10Fe3	ZCuAl10Fe3

 

 

 

Eccentric Semi Ball Valve Dimension and Installation dimensions