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GB/T Flange Ball Valve

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GB/T Flange Ball Valve

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A valve is a device used to control the flow of fluids such as liquids, gases, and powdery solids. It can control the flow of fluid by opening or closing, or control the pressure of fluid by adjusting the opening of the valve. Valves are widely used in various industries, including chemical, petroleum, natural gas, water treatment, electricity and other fields.

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产品描述

Commodity name: GB/T Flange Ball Valve
Commodity ID: 1172824667329286144

GB/T Flange Ball Valve

Design standards

Design standards:GB/T12237
Face to Face:GB/T12221
Flanged End:GB/T9113 JB79 HG20592
Test and Inspection:GB/T12237 JB9092

Specifications

Nominal pressure:1.6,2.5,4.0,6.3Mpa
Strength test:2.4,3.8,6.0,9.5MPa
Seal test:1.8,2.8,4.4,7.0MPa
Gas seal test:0.6Mpa
Valve body material:WCB(C),CF8(P),CF3(PL),CF8M(R),CF3(RL)
Suitable medium:water,steam,oil products,nitric acid,acetic acid
Suitable temperature:-29℃～180℃

Materials of main parts

Material name	Carbon steel	Stainless steel
Body	A216 WCB	A351 CF8	A351 CF8
Bonnet	A216WCB	A351 CF8	A351 CF8
Ball
Stem	2Cr13/A276 304/A276 316
Seat	PTFE、RPTFE
Gland Packing	PTFE/Flexible Graphite
Gland	A216WCB	A315 CF8
Bolt	A193-B7	A193-B8M
Nut	A194-2H	A194-8

Main outer size

DN(mm)	L	D	D1	D2	b	t	z-Φd
15	108	95	65	45	14	2	4-Φ14
20	117	105	75	55	14	2	4-Φ14
25	127	115	85	65	14	2	4-Φ14
32	140	140/135	100	78	16	2	4-Φ18
40	165	150/145	110	85	16	3	4-Φ18
50	178	165/160	125	100	16	3	4-Φ18
65	190	185/180	145	120	18	3	4-Φ18
80	203	200/195	160	135	20	3	8-Φ18
100	229	220/215	180	155	20	3	8-Φ18
125	-	250/245	210	185	20	3	8-Φ18
150	-	285/280	240	210	22	3	8-Φ23
200	-	340/335	295	265	22	3	12-Φ23
250	-	405	355	320	26	3	12-Φ25
300	-	460	410	375	28	4	12-Φ25
350	-	520	470	435	32	4	16-Φ25
400	-	580	525	485	36	4	16-Φ30

hongwang

The main components of the valve include valve body, valve cover, valve core, valve seat, sealing ring, etc. The valve body and valve cover are usually made of cast iron, stainless steel, copper alloy and other materials to withstand the pressure of the fluid. The valve core and the valve seat play a role in controlling the flow of the fluid by moving the position of the valve core to change the passage of the fluid. The sealing ring is used to ensure the sealing performance of the valve and prevent the leakage of fluid.

Valve according to its use can be divided into manual valve and automatic valve two categories. Manual valve requires manual adjustment, usually by rotation, push-pull and other ways of operation, suitable for small flow, small pressure occasions. The automatic valve relies on electric, gas, liquid and other energy sources to realize automatic adjustment. It can automatically open and close or adjust the opening of the valve according to the preset control signal. It is suitable for large flow and high pressure occasions.

There are many kinds of valves, which can be divided into globe valves, gate valves, ball valves, butterfly valves, regulating valves, etc. according to their structural forms. Valve is mainly used to cut off the fluid channel, often used to close or open the fluid pipeline. The gate valve controls the passage of the fluid through the up and down movement of the gate plate, which is often used to adjust the fluid. The ball valve controls the passage of the fluid through the rotation of the ball, and has the characteristics of fast opening and closing, reliable sealing. Butterfly valve is through the rotation of the butterfly plate to control the fluid channel, suitable for large flow, low pressure occasions. The regulating valve controls the opening of the fluid by adjusting the position of the spool, which is suitable for precise control of the fluid flow and pressure.

Valves play a vital role in industrial production. They can control the flow of fluids and ensure the safety, stability and stability of the production process * *. The selection and use of the valve needs to be determined according to the specific process requirements and fluid properties. At the same time, it is necessary to pay attention to the maintenance of the valve, and regularly repair and replace it to ensure the normal operation of the valve. The valve industry is also constantly developing and innovating, constantly improving in materials, design, manufacturing and other aspects to meet the needs of different industries.