Top Entry API Ball Valve Firesafe Rising Stem Ball Valve Zero Leakage With Drain

                                                   Top Entry Firesafe Design Rising Stem Ball Valve with Drain

EDVC Rising stem ball valve(RBV)) has mechanism to enable dual action and gets sealing by the acting of tilting & turn. Generally, it has low torque prominen tly compared to other ball valves. So, the size of act uator is to be small and our customer can adjust it if there is some leakage in using. Basically 3Z Rising stemem ballball valvevalve iiss pperfecterfect inin sealingsealing. IItt iiss eeasyasy ttoo eexchaxcha nge seat because of top entry type, based on the fiel d situation, and it has long life cycle as there is no friction and abrasion.

The movement of the ball tilted from the seat before starting the rotation eliminates the wear of the seat seal and allows for smooth movement and low torque. The same tilting movement when starting the opening allows for a cleaning flow all around ball surface; this flow automatically flushes the ball surface removing eventual dirt particles from the sealing areas

Product Feature:

- Zero Leakage.

- Low Operation Torque.

- Long life of seat because of no seat abrasion.

- Easy Seat Exchange with Top entry type.

- Protecting seat as there is divided action with dual action.

- Easy and continuous sealing as stem is cam type.

Product Specification:

- Size range: DN50 (2″) to DN600 (24″)

- Pressures range: PN20 (ANSI 150) to PN420 (ANSI 2500)

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- Temperature range : -196° to 600°C (-320° to 1112°F)

- End connections : ASME B16.5, Flanged RF, FF, RTJ

Standards:

- Design :API 6D, API 600, ASME B16.34

- Fire Safe : API 607, API 6FA, BS 6755

► Friction free opening and closing, increasing the lifetime of the valve.

► Single seat design, no thermal expansion problems.

► Corrosion and wear resistant materials are used on the closure members.

► Self cleaning closure members, due to high velocity flow during opening and closing.

► Top entry design for in-line inspection and maintenance.

► Adjustable stem packing while the valve is in service.

► All valves are executed with a back seat, which gives the possibility to renew the stem packing under pressure

► Mechanically energised sealing, no springs or other weak devices are required to obtain the sealing.

► Non lubricated seal.

► Pressure independent sealing.

► Stem moves only up and down, no rotation.

► No coupling cam in the stem construction

► Topworks according to ISO 5210

 

Rising Stem Ball Valve applications
Rising Stem Ball Valves are often used in the following applications:
Sand slurry service (special sand slurry design), Lethal (H2S) service (special Bellow Seal design), Produced water service, Steam service, Molecular Sieve service, Dehydration & Regeneration service, Hydrocarbon service, Gas metering, Emergency Blow Down and Shut Down service, Hot Oil service, High Temperature service, Low Temperature service.

 

Expanded View & Bill of Materials

Bill of Materials
no.	Part	WCC	316ss
1	Body	A216-WCC	CF8M
2	Gasket	Graphite+304	Graphite+304
3	Trunnion Bearing	Stainless Steel
4	Seat Ring	410SS	F316
5	Seat Insert	PTFE	PTFE
6	Nut	A194 2H	A193 8M
7	Stud Bolt	A193 B7	A193 B8M
8	Ball	A105+316	F316+STL
9	Core Pin	17 - 4Ph	17 - 4Ph
10	Bushing	A276 410	F316
11	Graphite Seal	Graphite
12	Packing Rings	Teflon
13	Lantern Ring	Stainless Steel
14	Stem	A182-F6A	F316+N
15	Packing Fitting	316SS	316SS
16	Bonnet	A216-WCC	CF8M
17	Stem Guide	17 - 4PH
18	Bearing	Alloy Steel
19	Bearing Race	Alloy Steel
20	Drive Nut	Alloy Steel
21	Indicator Screw	Alloy Steel
22	Handwheel	Cast Steel
23	Drive Nut	Alloy Steel
24	Set Screw	Carbon Steel	316SS
25	Handwheel Nut	Carbon Steel
26	Position Indicator	Stainless Steel