ASTECH VALVE CO., LTD.

AST was established in March 1999, focusing on valve design, manufacturing, and sales. AVC was founded in January 2010 and became part of the parent company, ASTIC. AVC specializes in the design and manufacture of Wafer Type Check Valves and Metal Seat Ball Valves. In June 2011, the company received ISO 9001 certification from Anglo Japanese American Registrars Taiwan Limited, with plans to achieve CE and API certifications in 2013. To meet the demand of the Japanese market, a branch office was established in November 2004, responsible for sales, quality assurance, warehousing, and delivery. The company is committed to stability and professional quality, which guide our strategic direction. We aim to establish independent AST and AVC brands while expanding into the East Asia, Southeast Asia, and Middle East markets. Additionally, we are seeking OEM and ODM partners and planning to enter the European and American markets.

Reduced Bore Ball Valve

At ASTECH VALVE CO., LTD., we pride ourselves on offering high-quality valves tailored to meet diverse industrial needs. Our reduced bore ball valve is engineered for optimal performance and durability. Designed to handle working pressures up to 2000 WOG for DN8 to DN25 and 1500 WOG for DN32 to DN50, this valve ensures reliable operation in demanding environments. The reduced ball valve features an anti-blast pivot for enhanced safety, while its temperature ratings range from -20 to 180℃, making it suitable for various applications. Additionally, our valves come equipped with a padlock device for added security. We also supply reduced bore gate valve, providing versatile solutions for flow control in pipelines. Our threaded end dimensions conform to ANSI B1.20.1 (NPT), DN 259 / DIN 2999, and ISO228 / BSP/PT standards, ensuring compatibility and ease of installation. Choose ASTECH VALVE CO., LTD. as your trusted ball valve supplier for reliable and efficient valve solutions. If you are looking for reduced bore ball valve, please do not hesitate to inform us.
One Piece Reduced Bore Ball Valve 1000/1500/2000 WOG (1/4" ~ 2")

A-2, A-2A

Two Piece Reduced Bore Ball Valve 1000/1500/2000 WOG

Our company is a reliable manufacturer of Ball valve in Taiwan, specializing in Gate Valve for many years.


● Anti-blast pivot
● Working Pressure:DN8~DN25 (2000 WOG)
● DN32~DN50 (1500 WOG)
● Temperature Ratings: -20 to 180℃
● Device of the padlock
● Threaded End Dimensions :
     ANSI B1.20.1 (NPT)
     DN 259 / DIN 2999
     ISO228 / BSP/PT
Parts and Material List :

No. Part Name Material
1 Body ASTM A351 CF8M /
A216 WCB
2 Ball SUS 316
3 Gasket ASTM A351 CF8M
4 Cap ASTM A351 CF8M /
A216 WCB
5 Seat PTFE
6 Thrust Washer PTFE
7 Packing PTFE
8 Gland SS304
9 Handle Nut SS304
10 Stem SS316
11 Handle SS304
12 Handle Cover Plastic

Size A B C D E F G W1 h i j
DN8 (1/4") 52.5 25.5 11.5 54.5 97.0 39.0 W3/16-24 28.2 11.0 30.0 5.2
DN10 (3/8") 56.5 25.5 12.5 54.5 97.0 39.0 W3/16-24 28.2 11.0 30.0 5.2
DN15 (1/2") 59.2 28.5 12.7 54.5 97.0 39.0 W3/16-24 28.2 11.0 30.0 5.2
DN20 (3/4") 78.9 38.1 17.5 64.1 119.0 46.0 W3/16-24 34.7 12.0 32.9 6.2
DN25 (1") 84.9 40.8 22.4 67.1 119.0 46.0 W3/16-24 34.7 12.0 33.1 6.2
DN32 (1-1/4") 102.6 51.3 25.4 84.5 144.0 50.0 W1/4-20 35.6 20.0 40.8 9.3
DN40 (1-1/2") 110.6 54.7 31.8 84.3 144.0 50.0 W1/4-20 35.6 20.0 41.0 9.3
DN50 (2") 136.1 67.2 38.1 105.0 180.0 50.0 W1/4-20 35.6 20.0 51.8 9.3

:

Two Piece Reduced Bore Ball Valve 1000 WOG

A-2A

● Anti-blast pivot No.
● Working Pressure: 1000 WOG
● Temperature Ratings: -20 to 180℃
● Device of the padlock
● Threaded End Dimensions :
     ANSI B1.20.1 (NPT) 5
     DN 259 / DIN 2999 6
     ISO228 / BSP/PT
Parts and Material List
No. Part Name Material
1 Body ASTM A351 CF8M
2 Ball SUS 316
3 Cap ASTM A351 CF8M
4 Gasket PTFE
5 Seat PTFE
6 Thrust Washer PTFE
7 Packing PTFE
8 Gland SS304
9 Handle Nut SS304
10 Stem SS316
11 Handle SS304
12 Handle Cover Plastic

Size A B C D E F G W1 h I J k S
DN8 (1/4") 54.4 25.4 11.5 50.0 103.9 38.5 M5*0.8P-2 28.0 9.5 35.5 22.0 1.0 5/16-24P
DN10 (3/8") 54.4 25.4 12.5 50.0 103.9 38.5 M5*0.8P-2 28.0 9.5 35.5 22.0 4.0 5/16-24P
DN15 (1/2") 65.3 30.9 15.0 56.5 123.0 38.6 M5*0.8P-2 28.0 12.4 42.3 25.0 5.0 3/8-16P
DN20 (3/4") 77.3 38.9 20.0 60.5 123.0 45.8 M6*1.0P-S 35.0 12.2 42.5 32.0 5.0 3/8-16P
DN25 (1") 88.7 44.3 25.0 69.3 145.0 45.8 M6*1.0P-S 35.0 17.7 45.8 40.0 8.0 M12-1.75P
DN32 (1-1/4") 102.4 54.5 32.0 76.0 145.0 47.2 W1/4-20 38.0 17.3 46.2 49.0 8.0 M12-1.75P
DN40 (1-1/2") 109.0 54.5 38.1 84.5 189.0 47.0 W1/4-20 38.0 20.1 51.7 55.0 10.0 M16-2.0P
DN50 (2") 125.3 62.2 50.0 95.0 189.0 49.2 W1/4-20 38.0 20.0 52.7 69.0 10.0 M16-2.0P
DN65 (2-1/2") 165.0 81.4 65.0 131.1 255.0 68.5 W1/4-20 55.0 21.5 76.3 85.0 10.0 M16-2.0P
DN80 (3") 189.5 94.9 80.0 140.6 261.0 69.5 W1/4-20 55.0 27.5 74.9 102.0 12.0 3/4-10P


Send Message
Contact Information

By submitting your contact information, you acknowledge that you consent to our processing data in accordance with the Privacy and Cookie Policy.

Discover the exceptional quality of the reduced bore ball valve from ASTECH VALVE CO., LTD., your trusted ball valve supplier. Our reduced ball valve is meticulously engineered for superior performance, handling working pressures of 2000 WOG for DN8 to DN25 and 1500 WOG for DN32 to DN50. With temperature ratings ranging from -20 to 180℃, this valve is versatile for various industrial applications. The integrated anti-blast pivot enhances safety, while the device of the padlock provides additional security for critical installations. We also offer reduced bore gate valve, ensuring a comprehensive selection for your flow control needs. Our valves feature threaded end dimensions that conform to ANSI B1.20.1 (NPT), DN 259 / DIN 2999, and ISO228 / BSP/PT standards, making installation seamless. Choose ASTECH VALVE CO., LTD. for reliable, high-performance valve solutions tailored to your specifications. Contact us today to explore our reduced bore ball valve!