Sekisui Industrial Piping Co., Ltd.

Sekisui Industrial Piping Co., Ltd. located in the Chungkang Export Processing Zone of Taichung City in Taiwan. From March of 2006, Sekisui Industrial Piping Co., Ltd. was established as a wholly-owned subsidiary of Sekisui Chemical Co., Ltd. with full technical supports and had a whole new start.

True Union Ball Valve Supplier

Sekisui Industrial Piping Co., Ltd.’s true union ball valve is currently one of the most advanced MEFCO manual valve available on the world market and will provide the best product ratio between quality-price. We not only provide a positive contribution to a sustainable development but also preserve a clean earth for the next generation. Please call or email us if you have any questions concerning compact true union ball valve. You'll benefit from our resources, our experience and our personalized customer service.
Categories > MEFCO Manual Valve > True Union Ball Valve (BN)
True Union Ball Valve (BN)

True Union Ball Valve (BN)

  • Size ½”-2”
  • Full port design
  • Easy maintenance
  • Socket or threaded end

Features :

MEFCO True Union Ball Valve (BN) possess double unions for customer with dual sides repair or maintenance requirement on their piping system. Available dimension starts from 1/2 to 2 inches (15 to 50mm) ASTM, DIN and JIS socket or NPT, Rp & Rc thread standard. Two conjunction ways: Socket & Thread.

Specification :

Working pressure:150psi@73.4°F(23°C)

NO PART NAME Q'ty MATERIAL
1 HANDLE 1 ABS
2 STEM 1 PVC
3 STEM O-RING 2 EPDM
4 UNION NUT 2 PVC
5 UNION END 2 PVC
6 END SEAL 2 EPDM
7 SPACER 1 PVC
8 SPACER SEAL 1 EPDM
9 BODY 1 PVC
10 BALL 1 PVC
11 SEAT 2 SANTOPRENE®




Socket Type
Size L Ød ØDu ANSI DIN JIS l H1 HL
A B Ød1 Ød2 Ød1 Ød2 Ød1 Ød2
15 1/2 105 15 53 21.54 21.23 20.3 20.1 22.4 21.52 22.5 53 84
20 3/4 117 20 61 26.87 26.57 25.3 25.1 26.45 25.42 26 61 90
25 1 133 25 71 33.67 33.27 32.3 32.1 32.55 31.37 30 71 106
32 1 1/4 147 32 83 42.42 42.04 40.3 40.1 38.6 37.31 32 82.5 116
40 1 1/2 167 40 96 48.56 48.11 50.3 50.1 48.7 47.21 36 91 128
50 2 180 50 116 60.63 60.17 63.3 63.1 60.8 59.1 40 110 140


Thread Type
Size L Ød ØDu NPT Rp Rc H1 HL
A B thd./in l(min) thd./in l(min) thd./in l(min)
15 1/2 105 15 53 14 16.5 14 15 14 13 53 84
20 3/4 117 20 61 14 17 14 16.5 14 15 61 90
25 1 133 25 71 11.5 21 11 19 11 17 71 106
32 1 1/4 147 32 83 11.5 22 11 22 11 19 82.5 116
40 1 1/2 167 40 96 11.5 22 11 22 11 19 91 128
50 2 180 50 116 11.5 23 11 26 11 23 110 140

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For nearly 23 years, Sekisui Industrial Piping Co., Ltd. is a national manufacturer and supplier that specialize in providing of true union ball valve, MEFCO manual valve related products. Our goal is to build a long term relationship as your true union ball valve supplier by providing quality products and service that exceeds your expectations. If you have any questions, want to buy in bulk, or have us give you a quote for a MEFCO manual valve to fit your needs, please email to us.