National standard stainless steel ball valve

Name: Stainless Steel Ball Valve
Brand: TG Valves

The ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for the regulation and control of the fluid. The hard-sealed V-shaped ball valve has a strong connection between the V-shaped ball core and the metal valve.

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Product Detail

Product Parameter

Design Standards

Technical Specifications: American Standard

Design standard: API6D API608

Construction Length: ASME B16.10

Connection flange: ASME B16.5

Test and inspection: API6D API598

Performance Specifications

Nominal pressure: 150,300,600LB

Strength test: PT3.0, 7.5, 15MPa

Sealing test: 2.2, 5.5, 11MPa

Upper sealing test: 2.2, 5.5, 11MPa

Air tightness test: 0.6MPa

Valve body material: WCB(C), CF8(P), CF3(PL), CF8M(R), CF3M(RL)

Applicable medium: water, steam, oil, nitric acid, acetic acid

Applicable temperature: -29℃～180℃

What is a Stainless Steel Ball Valve?

A stainless steel ball valve is a quarter-turn valve that controls fluid flow by rotating a hollow, perforated ball. It is widely used in industrial systems due to its excellent sealing performance, corrosion resistance, and durability.

The GB standard stainless steel ball valve refers to a valve manufactured according to Chinese national standards, commonly used in domestic industrial pipelines and export projects requiring GB specifications.

Key Features of Stainless Steel Ball Valve

Made from high-quality stainless steel 304 / 316
Excellent corrosion resistance and long service life
Quarter-turn operation for quick opening and closing
Reliable PTFE sealing with zero leakage
Suitable for high pressure and high temperature applications
Available in threaded, flanged, and welded connections

Technical Specifications

Parameter	Specification
Material	Stainless Steel 304 / 316
Nominal Pressure	PN16 / PN25 / PN40
Temperature Range	-20°C ~ 200°C
Connection Type	Threaded / Flanged
Sealing Material	PTFE
Operation Type	Manual / Pneumatic / Electric
Applicable Medium	Water, Oil, Gas, Steam

Structure & Design

The stainless steel ball valve consists of:

Valve body
Ball
Stem
Seat (PTFE)
Handle or actuator

Its compact structure ensures low torque operation and tight sealing performance, making it ideal for both on-off and flow control applications.

Applications

Stainless steel ball valves are widely used in:

Oil & Gas Industry
Chemical Processing
Water Treatment Systems
Power Plants
Food & Beverage Industry
Pharmaceutical Industry

These valves are especially suitable for environments requiring high corrosion resistance and hygiene standards.

GB Standard vs ANSI Ball Valve

Standard	Description
GB Standard	Chinese national standard, widely used in domestic projects
ANSI Standard	International standard, commonly used in export and global projects

Key Differences:

Design dimensions
Pressure rating system
Application regions

Choosing the correct standard ensures compatibility with pipeline systems.

Advantages of Stainless Steel Ball Valve

Long service life with minimal maintenance
Excellent sealing performance
Fast operation (90° rotation)
Strong resistance to corrosion and chemicals
Wide range of industrial applications

FAQs

What is a stainless steel ball valve?

A stainless steel ball valve is a flow control device that uses a rotating ball to start or stop fluid flow.

What is GB standard ball valve?

A GB standard ball valve is manufactured according to Chinese national standards and is commonly used in Asia and domestic projects.

What is the difference between 304 and 316 stainless steel ball valves?

316 stainless steel offers better corrosion resistance, especially in marine and chemical environments.

Where are stainless steel ball valves used?

They are used in oil & gas, chemical processing, water treatment, and industrial pipelines.

What pressure can a ball valve handle?

Depending on the design, stainless steel ball valves typically handle pressures from PN16 to PN40 or higher.

Why Choose Our Stainless Steel Ball Valve?

Strict quality control system
Competitive factory pricing
OEM & custom design support
Fast delivery and global export experience

Contact Us

If you are looking for a reliable stainless steel ball valve manufacturer, feel free to contact us for technical support and quotations.

Main external dimensions and connection dimensions:

National standard (GB) PN1.6MPa
DN	L	D	D1	D2	b	Z-фd	H
15	130	95	65	45	14	4-ф14	90
20	140	105	75	55	14	4-ф14	95
25	150	115	85	65	14	4-ф14	100
32	165	135	100	78	16	4-ф18	108
40	180	145	110	85	16	4-ф18	120
50	200	160	125	100	16	4-ф18	135
65	220	180	145	120	18	4-ф18	155
80	250	195	160	135	20	8-ф18	175
100	280	215	180	155	20	8-ф18	200
125	320	245	210	185	22	8-ф18	220
150	360	280	240	210	24	8-ф23	240
200	400	335	295	265	26	12-ф23	310
250	533	405	355	320	30	12-ф25	360
300	610	460	410	375	30	12-ф25	420
National standard (GB) PN2.5MPa
DN	L	D	D1	D2	b	Z-фd	H
15	130	95	65	45	16	4-ф14	90
20	140	105	75	55	16	4-ф14	95
25	150	115	85	65	16	4-ф14	100
32	165	135	100	78	18	4-ф18	110
40	180	145	110	85	18	4-ф18	120
50	200	160	125	100	20	4-ф18	135
65	220	180	145	120	22	8-ф18	160
80	250	195	160	135	22	8-ф18	175
100	280	230	190	160	24	8-ф23	200
125	320	270	220	188	28	8-ф25	220
150	360	300	250	218	30	8-ф25	240
200	400	360	310	278	34	12-ф25	320
250	533	425	370	332	36	12-ф30	380
National standard (GB) PN4.0MPa
DN	L	D	D1	D2	b	Z-фd	H
15	130	95	65	45	16	4-ф14	90
20	140	105	75	55	16	4-ф14	95
25	150	115	85	65	16	4-ф14	100
32	180	135	100	78	18	4-ф18	110
40	210	145	110	85	18	4-ф18	120
50	220	160	125	100	20	4-ф18	135
65	250	180	145	120	22	8-ф18	160
80	280	195	160	135	22	8-ф18	175
100	320	230	190	160	24	8-ф23	200
125	400	270	220	188	28	8-ф25	220
150	400	300	250	218	30	8-ф25	240
200	502	375	320	282	38	12-ф30	320
250	568	445	385	345	42	12-ф34	470

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