Ball Valve

Widely used in fields such as petroleum, chemical engineering, metallurgy, construction engineering, water supply, etc

Structural characteristics Floating soft sealed stainless steel ball valves are used on various pipelines from PN16 to PN63 to cut off or connect the medium in the pipeline. They are made of different materials and can be applied to water, steam, oil, and liquid respectively Various media such as chemical gas, natural gas, coal gas, acetic acid, oxidizing media, urea, etc. a. Among various valves, ball valves have the smallest flow resistance. When a full diameter ball valve is opened, the ball channel, valve body channel, and connecting pipe diameter are equal and form a diameter, and the medium can flow almost without loss b. The ball valve can be fully closed and fully opened by rotating 90 °, and can be opened and closed quickly. Compared with smell valves and globe valves of the same specifications, ball valves have small volume, light weight, and are easy to install in pipelines.

Keyword:

valve ball valve

Classify:

Ball valve

E-mail：

sales@elite-valve.cn

Message

Back list

Structural characteristics

Floating soft sealed stainless steel ball valves are used on various pipelines from PN16 to PN63 to cut off or connect the medium in the pipeline. They are made of different materials and can be applied to water, steam, oil, and liquid respectively
Various media such as chemical gas, natural gas, coal gas, acetic acid, oxidizing media, urea, etc.
a. Among various valves, ball valves have the smallest flow resistance. When a full diameter ball valve is opened, the ball channel, valve body channel, and connecting pipe diameter are equal and form a diameter, and the medium can flow almost without loss
b. The ball valve can be fully closed and fully opened by rotating 90 °, and can be opened and closed quickly. Compared with smell valves and globe valves of the same specifications, ball valves have small volume, light weight, and are easy to install in pipelines.

Standards and norms

Design standard	Face to Face	Flange End	Test & Check	Pressure-Temp.
GB/T 12237 API6D	GB/T12221	JB/T 79 HG20592	JB/T 9092 GB/T13927	GB/T 12224 ASME B16.34

performance parameters

序号 NO.	Project name	Project name
序号 NO.	Project name	PN16	PN25	PN40	PN64
1	nominal pressure(MPa)	16	25	4	6.4
2	Shell strength test pressure(MPa)	1.5 Times the nominal pressure at room temperature
3	High pressure seal test pressure(MPa)	1.1 Times the nominal pressure at room temperature
4	Operating pressure at room temperature(MPa)	≤16	≤2.5	≤4.0	≤6.4

Materials for Main Parts

Name	Material
Body/Bonnet	CF8	CF3	CF8M	CF3M	WCB	LCB	WC6	WC9	C5
Ball	CF8	CF3	CF8M	CF3M	WCB Hcr	CF8	CF8	CF8	CF8
Stem	F304	F304L	F316	F316L	2CR13	F304	F304	F304	F304
Seat	PTFE/PPL/304
Packing/Gasket	PTFF					Graphite
Bolt	Stainless Steel					35CrMoA
Nut	Stainless Steel					45、35CrMoA
Handle	Cast Steel

PN16 National standard floating ball valve

Main external and connection dimension

Nominal Diameter DN	Main external and connectiong dimensions
Nominal Diameter DN	L	D	D1	D2	b	f	Z- φd	H	W
15	130	95	65	45	14	2	4- φ14	78	140
20	140	105	75	55	14	2	4- φ14	84	160
25	150	115	85	65	14	2	4- φ14	95	180
32	165	135	100	78	17	2	4- φ18	150	250
40	180	145	110	85	17	2	4- φ18	150	300
50	200	160	125	100	18	2	4- φ18	170	350
65	220	180	145	120	19	2	4- φ18	195	350
80	250	195	160	135	20	2	8- φ18	215	400
100	280	215	180	155	21	2	8- φ18	250	500
125	320	245	210	185	22	3	8- φ18	265	600
150	360	280	240	210	24	3	8- φ23	270	800
200	400	335	295	265	26	3	12- φ23	330	800
250	533	405	355	320	28	3	12- φ25	450	1300