BQ671FThe pneumatic insulated double clip ball valve has good thermal and cold insulation characteristics. The diameter of the valve is consistent with the pipe diameter, which can effectively reduce the medium heat loss in the pipeline. Pneumatic valve is mainly used in petroleum, chemical, metallurgy, pharmaceutical, food and other systems to transport high viscosity medium of bq671f pneumatic insulation double clip ball valve PN10 ~ PN16. Due to the integral structure of pneumatic ball valve, the insulation ball valve is smaller and lighter than the general ball valve, with no leakage and good sealing performance. The jacket is welded with carbon steel pipe, which is more pressure resistant and firm than the cast one.

BQ671FMaterial of main parts of pneumatic insulated double clip ball valve PN10 ～ PN16

Serial number	Part name			texture of material
				C	D	R
1	Valve cover			WCB	ZG1C/18Ni9Ti	ZG1Cr18Ni12M2Ti
2	shim			PTFE	PTFE	PTFE
3	valve seat			PTFE	PTFE	PTFE
4	sphere			1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni9Ti
5	valve seat			PTFE	PTFE	PTFE
6	Jacket valve body			WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
7	Bolt			35	1Cr18Ni9i	1Cr18Ni12Mo2Ti
8	Stem			1Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
9	shim			PTFE	PTFE	PTFE
10	filler			PTFE	PTFE	PTFE
11	bushing			PTFE	PTFE	PTFE
12	Spring washer			WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
13	shim			35	1Cr18Ni9Ti	1Cr18Ni9Ti
14	Nut			35	1Cr18Ni9Ti	1Cr18N19Ti
15	Connecting bracket			1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni9Ti
16	Bolt			35	1Cr18Ni9Ti	1Cr18Ni9Ti
17	Connecting sleeve			35	1Cr18Ni9Ti	1Cr18Ni9Ti
18	Position indicator			Plastic	Plastic	Plastic

 

 

BQ671FPneumatic insulated double clip ball valve PN10 ～ PN16 main structure connection size nominal diameter overall dimension connecting flange sizedLL1L2L3HH1GDD1D2fN-Md151435140,17862/75150170/176151/2″90654524-M14201938140/17862/75160175,181201/2″100755524-M14252542140/21462/91190180/214201/2″110856524-M14322950164/21475/91210215/243251/2″1301007834-M18403860164/24675/101230225/263301/2″1451108534-M18504870190/29591/112250248/274301/2″16012510034-M18656495210/295101/112270258/284451/2″18014512034/8-M188076118247/395112/139300300/326501/2″19016013538-M1810095140276/478127/176340315/370701″215/230180/190155/16038-M18/20125112/118175/195348/562159/206360375/440801″245/270210/220185/18838-M18/24150135/150210/260378/724176/228420428/500951″280/300240/250210/21838-M22/24

Preparation before installation of pneumatic ball valve:
1. Ensure that the installation position of the pneumatic pipeline ball valve is in the coaxial position, and the two flanges on the pipeline shall be kept parallel to confirm that the pipeline can bear the weight of the pneumatic pipeline ball valve. If it is found that the pipeline can not bear the weight of the pneumatic pipeline ball valve, the corresponding support shall be provided for the pipeline before installation.
2. To confirm whether there are impurities and welding slag in the pipeline, the pipeline must be blown clean.
3. Check the name plate of the pneumatic pipeline ball valve, and operate the pneumatic pipeline ball valve fully open and closed for several times to confirm that the valve can work normally, and then check all details of the valve once again to ensure that the valve is intact.
4. Remove the protective covers at both ends of the valve, check whether the valve body is clean, and clean the inner cavity of the valve body. Since the sealing surface of the ball valve in the pneumatic pipeline is ball shaped, even small impurities may cause damage to the sealing surface.
Installation of pneumatic pipeline ball valve:
1. Any section of the pneumatic pipeline ball valve can be installed at the upstream end, and the handle pneumatic pipeline ball valve can be installed at any position of the pipeline. If the pneumatic pipeline ball valve with actuator (such as gearbox and electro pneumatic actuator) is equipped, it must be vertically installed, and the inlet and outlet of the valve shall be in horizontal position.
2. The sealing gasket shall be installed between the flange of the ball valve and the flange of the pipeline according to the design requirements of the pipeline.
3. The bolts on the flange shall be tightened symmetrically, successively and evenly.
4. If pneumatic and electric actuators are adopted for pneumatic pipeline ball valve, the installation of air source and power supply shall be completed according to the manual.
Inspection after installation of pneumatic pipeline ball valve:
1. After the installation, start the pneumatic pipeline ball valve to open and close several times. The action should be flexible and the force should be uniform. The pneumatic pipeline ball valve should work normally.
2. According to the design requirements of the pipeline pressure, the sealing performance of the joint surface between the pneumatic pipeline ball valve and the pipe flange is tested after pressurization.