Flanged Concentric Butterfly Valve

1. PROFUCT PROFILE

Flanged concentric butterfly valve is one type of central lined flanged type butterfly valve, which is the most common type of butterfly valve. Rubber lined butterfly valve is with the central disc and bonded liner. It is featured with a higher strength body and better pressure resistance as safely factor. Prosper Flow can manufacture the double flanged type rubber lined butterfly valve according to AWWA C504 and EN593 with flanged ends of ANSI B16.5, DIN 2501, BS 4504, GB 17241.6, JIS10K, etc.

2. FEATURES

· Separate bushings provide correct alignment of the shaft through the body and reduces operating torque.

· Stem is fully retained by pins to the valve disc to form a blowout proof valve design.

· The stem is sealed by two separate o-rings and an integral seal in the seat to ensure absolutely no external leakage for the life of the valve.

· The replaceable resilient seat surface extends past the valve face to eliminate the need for gaskets on flanged installations. Installation time is greatly reduced by this feature.

· The reduced torque allows the use of smaller, wider variety, and more economical actuators while still covering the close-off requirements.

3. TECHNICAL SPECIFICATION

· ANSI 125/150LB, PN1.0/PN1.6MPa

· Size: 2″~24″ (50~600mm)

· Materials: A126 B (GG25), A536 65-45-12 (GGG40/50)

· Epoxy coating with thickness ≥ 250μm

· Working temperature: 0℃~+80℃

4. STANDARD

· Connection : Flange type, Lug type, Wafer type, Groove End type

· Design Standard: API 609, BS EN 593, GB T12238, MSS SP-67

· Face to Face Standard: API 609, BS 5155, ISO 5752

· Flange Drilling: ANSI B 16.1, BS4504, DIN PN 10 / PN 16, JIS 5K, 10K, 16K

· End Flange: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16, JIS B2212/2213, BS 5155

· Top Flange: ISO5211

· Test: API 598, ISO9001, ASTM, ANSI, DIN, BS, JIS

· Coating: Epoxy powder coating, or coating as customers' requirement

· Certificate: ISO9001:2000, ISO2531, EN545, QS-9000 SGS, EN598, BS4772, DIN3352

5. APPLICATION

· Water works, water projects

· Environment protection

· Public facilities

· Power plant

· Real estate

· Petroleum, chemical industry

· Steel work, metallurgy

· Water treatment plant

Anhui Prosper Flow Technology Co., Ltd. is located in Tongling City, Anhui Province, a famous ductile iron valve production base   in China.Such as the Giant AVK Valve and TALIS Spain,who all buy castings here.
This is a manufacturer of production and sales of valves and fittings. It has import and export license. Prosper flow has a high-quality professional team, and the team's core personnel have more than 10 years of experience in the valve industry. With extensive experience and continuous development and efforts, we understand the international standards and strict export quality requirements of ductile iron valves. We provide OEM services for the world-famous valve companies. Our valves cover British Standard (BS), German Standard (DIN), American Standard (AWWA), Australian Standard (AS), South African Standard (SABS) and National Standard (GB). Now it has its own valve logo ‘ZW’. We have won the favor of the market and customers with advanced management and technology, high quality products and excellent service.