5. Butterfly valve drilling hole and assembling taper pin 6. Butterfly valve pressure test
7. Butterfly valve product
Wafer Butterfly Valve Packing Procedure:
1. Neatly placed in the case 2. Packing finished
3. Seal the plywood case
Butterfly valves are designed to comply with MSS SP-67, BS5155 and API609.Compatible with GB, ANSI, DIN, BS, JIS flanges. Available in size 2"to 40". Available in wafer type, lug type and U-section wafer type body. Available with handles (2" to 8"), manual gear operators 2" to 40"), and electric or pneumatic actuators (2" to 40"). With many body/trim combinations, there is a series F101 butterfly valve to meet your application.
1. Excellent control characteristics.
2. Tight shut-off even after innumerable operations.
3. 90° movement for full open/close position. Provision for intermediatory locking after every 10° for regulation/ controlling purpose.
4. Installation cost considerably reduced because of very low weight and compact design.
5. No routine maintenance required.
6. Longer life and reliable service with minimum component wear.
7. Renewable seats. No supplementary gasket required with the adjacent pipework.
8. Body & Stem totally protected from service fluid.
9. Centrally mounted disc, shafts and bearings, therefore these valves give higher CV values.
Cast Iron: ASTM A126CL. B , DIN1691 GG25, EN 1561 EN-GJL-200, GB12226 HT200;
This buyer can select material as per materials list. The customer may mark the material and temperature used, Our company may select instead. When the medium and temperature is special, please consult with our company.
Seat Temperature Ratings
Seat materials are capable of withstanding lower temperatures without damage. However, the elastomer becomes hard and torques increase. Some flow media may further restrict the published temperature limits or significantly reduce seat life.
Established in 2001, Tianjin Tanggu Valve Equipment Co., Ltd. is a professional manufacturer and exporter that is concerned with the design, development and production of butterfly valve, gate valve, check valve, etc. We are located in Tianjin, with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of markets around the world.
Covering an area of 2,500 square meters, we now have over 45 employees...