Full Bore Discharging Type Underground Fully Welded Ball Valve (GAQ61PPL)

Full Bore Discharging Type Underground Fully Welded Ball Valve (GAQ61PPL)

Application:

City Gas:gas outlet pipe,supply pipe for main line and all brach lines etc.
District heat supply:Outlet pipe,main line and brach line for large heat supply equipment.
Heat exchanger:on-off of pipe and all loops.
Steel plant:various fluid pipes,discharging pipe for exaust gas,supply pipe for gas,thermal power and fuel.
Various industrial equipment:various heat treatment pipes,pipe for all kinds of industrial gas and thermal power.

Features: 

Outer leakage won't occur for welded ball valve.
Valve seat consists of teflon sealing ring strengthened by carbon fiber and belleville spring,so it can adjust well to change on pressure and temperature without any leakage risk within marked pressure and temperature range.
The whole process of sphere is tracked and detected with advanced computer and detector,so the process precision is very high,operation is very simple and easy,no bad interference.
Body material is same as material of pipe,when vehicles pass through the groud or even earthquake happens,the stress is evenly distributed without any deformation risk.
Sealing ring is made of PTFE containling 20% carbon,Ensure no leakage will happen.
Buried ground fully welded ball valve can be installed in small and shallow well being set on ground rather than large valve well,so the construction cost and project time can be saved a lot.
The length of valve body and height of stem can be designed in accordance with the requirement of project.
The service life can be more than 15 years when used at normal operational and using conditions.
Brief Introduction:
Full welded ball valve is a new develped ball valve,compared with ordinary ball valves,its performance is more reliable and has much longer service life,it has a wide application in the following industrial field :
 
Urban Gas Supply:Main and distribution pipelines.
Urban Central Heat Supply:Main and distribution pipelines.
Heat Exchanger.
Steel Factory:Pipelines for discharging waste gas,supplying coal gas and heat,etc.
Industrial Equipment:heat treatment pipelines,gas pipelines and thermal pipelines.
 
Construction Features:
1.Floating Ball/Trunnion Mounted.
2.Full bore/Reduced port.
3.Metal seal/Soft seal.
4.Fire Safe Design; Anti-static device; Blow-out proof stem.
5.Belleville spring ensure no leakage. 
 
Product Rang:
Pressure Rating:150-600lb,1.6-4.0 Mpa
Connecting Size:1/2"-40",DN15-1000mm.
Connecting type:Thread,Welding,Flange,etc.
Applicable Temp(ºC):-19-150.
Applicable Medium:Water,Oil,Natural gas,etc.
Operating Mode:Lever,Gear,Electric,Pneumatic,etc.
 
Material Available:
Body: ST37.8 / A105 / LF2 / F304 / F316. Etc.
Ball : F304 / F316 ( Option upon request )
Seat: PTFE+C / Nylon / PEEK. Etc.

Main External Dimensions. 

Short type	Size	L	D	D1	D2
	DN50	300	50	60.3	114
	DN65	300	65	76.1	140
	DN80	300	80	88.9	165
	DN100	325	100	114.3	216
	DN125	350	125	141.3	219
	DN150	490	150	168.3	355
	DN200	580	200	219.1	356
	DN250	550	250	273.1	457
	DN300	630	300	323.9	508
	DN350	762	337	355.6	559
	DN400	840	387	406.4	660
	DN500	1010	489	508	812
	DN600	1140	591	609	1016
	DN700	1346	686	711.2	1095
	DN800	1524	781	812.8	1237
	DN900	1727	874	914.4	1385

 

Long type	Size	A	L	D
	DN50	300	1000	110
	DN65	300	1000	138
	DN80	300	1000	165
	DN100	300	1000	165
	DN150(H)	400	1000	200
	DN150(G)	400	1000	300
	DN200	400	1000	380
	DN250	400	1000	450
	DN300	500	1200	550
	DN400	500	1480	670
	DN500	600	1765	800
	DN600	650	1800	970
	DN650	650	1850	1050
	DN700	700	1950	1090
	DN750	750	2000	1180
	DN800	800	2150	1245
	DN850	850	2200	1360
	DN900	900	2400	1420