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Q341F Worm Gear Liquefied Ball Valve Worm Gear Liquefied Ball Valve

  • 1、Product model Q341F-25
  • 2、Nominal diameter DN15~800mm
  • 3、Nominal pressure PN1.0~2.5MPa
  • 4、Main material WCB, 1Cr13
  • 5、Operating temperature -29-150℃
  • 6、Applicable medium liquefied petroleum gas, natural gas
客户订购咨询:15000666432
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Detail

Q341F Worm Gear Liquefied Ball Valve Overview:

Q341F Worm Gear Liquefied Ball Valve produced and sold by Woci valve group Closure The ball rotates around the valve body centerline to open and close a valve. The seal is embedded in the valve seat. A spring is provided at the end of the metal valve seat. When sealing When worn or burned, push the valve seat and the ball to form a metal seal under spring action. It has a unique automatic pressure relief function, when the valve cavity medium pressure exceeds the spring preload, the outlet valve seat back away from the ball, to achieve automatic relief pressure relief valve seat automatically reset for water, solvents, acids And natural gas and other general working medium, but also for poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, widely used in various industries.


Q341F Worm Gear Liquefied Ball Valve structural features:

1, a unique valve seat seal seat structure
with the front seal design, this structure has a two-way seal and the cavity automatically relief function. The sealing seat, inlaid with a sealing material, floats and is spring-loaded. When in the closed position, the sealing surface remains in intimate contact with the ball to ensure leak-tightness of the valve at both high and low pressure drops.
2, automatic pressure relief structure
When the cavity pressure abnormal increase phenomenon, the single seal structure of the ball valve with automatic pressure relief function, and double seal structure of the valve body pressure relief device on the additional pressure relief.
3, sealed emergency ambulance function
Valve design has an auxiliary valve seat emergency seal system. Once the sealing surface is damaged, the corresponding sealant can be injected through the auxiliary sealing system for emergency treatment and the seat area can be rinsed and lubricated by the auxiliary system when necessary.
4, anti-static device
When operating the valve, due to the friction between the ball seat, will have electrostatic charge and accumulate in the ball line. In order to prevent static sparks, special anti-static devices installed in the valve, the static electricity derived.
5, the fire structure
fixed ball valve seat with a unique structure, when a fire, the non-metallic sealing surface material burned, the metal ring spring with the elasticity of pushing the valve seat seal with the sphere, thus preventing the spread of fire and media outflow. (Fireproof structure design in line with API607, JB / T6899 and BS755),
6, the full diameter structure and reduced diameter structure
To meet user needs, far a company with all-diameter series of ball valves and reduced diameter series, full diameter ball valve pipe diameter Consistent with the pipe diameter, easy to clean, etc. Diameter reduction ball valve light weight, the fluid resistance is only part of the same diameter globe valve, the prospects are broader.
7, the body of the discharge device
according to customer requirements, the ball valve body to install the drain valve. Once both ends of the valve are closed, the back pressure in the valve chamber can be vented and relieved through the valve's drain valve.


Q341F Worm Gear Liquefied Ball Valve main parts material:

BodyValve stemValve ballSealing surfaceGasketfillerOperating temperatureSuitable media
WCB1Cr131Cr13

1Cr13

Stellite alloy

Body material

Flexible graphite

Stainless steel plus flexible graphite

08 mild steel

F304 F316

Flexible graphite

Braided graphite

-29-150 ° CLPG, natural gas
WC615CrMo15CrMo-29-150 ° C
WC925Cr2MoV25Cr2MoV
LCB304304- 29-150 ° C
CF8304304-29-150 ° CLPG, natural gas
CF3304L304L
CF8M316316
CF3M316L316L


Q341F Worm Gear Liquefied Ball Valve main connection size and weight (GB)

Nominal
diameter
standard valueReferenceWeight (kg)
LDD1D2bfZ-ΦdH1H2H3H4
FlangeButt weldingQ47FQ347F
mmPN1.0 (Mpa)
151081659565461424-Φ14145
2103464.5
2011719010575561624-Φ14152
2203525.5
2512721611585651624-Φ14162
2353647
32140229140100761824-Φ18175
25538211.5
40165241150110841824-Φ18188
28040617
50178292165125992024-Φ182052283084302231
651903301851451182024-Φ182222483404602839
802033562001601322028-Φ182422703804944152
1002294322201801562228-Φ182652944305384871
1253465082502101842228-Φ18
322490588
103
1503945592852402112428-Φ23
358560644
180
2004576603402952862428-Φ23
406640704
290
25053378739535031926212-Φ23
468730766
400
30061083844540037026212-Φ23
538830830
540
35068688950546042926216-Φ23
610940922
734
40076299156551548026216-Φ26
68210601020
1005
450864109261556553028220-Φ26
75511801114
1372
500914119467062058228220-Φ26
83213001204
1880
6001450139478072568234220-Φ30
92214201290
2648
7001650154989584079434224-Φ30
101515401375
3828
80018501778101595090136224-Φ34
111016501448
5462
PN1.6 (MPa)
151081659565461424-Φ14145
2103464.5
2011719010575561624-Φ14152
2203525.5
2512721611585651624-Φ14162
2353647
32140229140100761824-Φ18185
25538211.5
40165241150110841824-Φ18188
28040617
50178292165125992024-Φ182052283084302231
651903301851451182024-Φ182222483404602839
802033562001601322028-Φ182422703804944152
1002294322201801562228-Φ182652944305385871
125356508252101842228-Φ18
322490588
103
1503945592852402112428-Φ23
358560644
182
20045766034029526624212-Φ23
406640704
292
25053378740535531926212-Φ26
468730766
404
30061083846041037028212-Φ26
538830830
545
35068688952047042930216-Φ26
610940922
745
40076299158052548032216-Φ30
68210601020
1020
450864109264058554834220-Φ30
75511801114
1392
500914119471565060936220-Φ34
83213001204
1910
6001450139484077072038220-Φ36
92214201290
2688
7001650154991084079440224-Φ36
101515401375
3878
80018501778102595090142224-Φ39
111016501448
5522
PN2.5 (MPa)
151401659565461424-Φ14150
2183544
2015219010575561424-Φ14158
2283605
2516521611585651624-Φ14166
2453747.5
32178229140100761824-Φ18180
26539211.5
40190241150110841824-Φ18195
29041616
50216292165125992024-Φ182162403204422130
652413301851451182228-Φ182342603554752839
802833562001601322428-Φ182522803945084152
1003054322351901562428-Φ232783084455525872
1253815082702201842628-Φ26
345512610
104
1504035593002502112828-Φ26
390592686
180
20050266036031027430212-Φ26
455690754
284
25056878742537033032212-Φ30
528790826
390
0.312486