China, Japan, South Korea, North Korea, Mongolia, Hong Kong-China, Macao-China, Taiwan-China, Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, Philippines, East Timor, Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, Iran, Iraq, Azerbaijan, Georgia, Armenia, Turkey, Syria, Jordan, Israel, State of Palestine, Saudi Arabia, Bahrain, Qatar, Yemen, Oman, United Arab Emirates, Kuwait, Lebanon, Cyprus, Afghanistan, Norway, Sweden, Finland, Denmark, Iceland, Aland Islands, Bonaire,SaintEustatiusAndSaba, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Kosovo, Germany, Poland, The Czech Republic, Slovakia, Hungary, Austria, Liechtenstein, Switzerland, United Kingdom, Ireland, Netherlands, Belgium, Luxembourg, France, Monaco, Guernsey, Isle Of Man, Spain, Portugal, Andorra, Italy, Greece, Malta, Vatican, San Marino, Slovenia, Croatia, Albania, Romania, Bulgaria, Serbia, Macedonia, Bosnia and Herzegovina, Montenegro, French Southern Territories, Egypt, Sudan, Tunisia, Algeria, Libya, Morocco, Ethiopia, Somalia, Eritrea, Djibouti, Uganda, Tanzania, Rwanda, Burundi, Seychelles, Kenya, South Sudan, Reunion, Mayotte, Chad, Central African Republic, Cameroon, Equatorial Guinea, Gabon, The Republic of Congo , The Democratic Republic of the Congo, The Democratic Republic of Sao Tome and Principe, Mauritania, Western Sahara, Senegal, Gambia, Mali, Burkina Faso, Guinea, Guinea-Bissau, Cape Verde, Sierra Leone, Liberia, Republic of Côte d'Ivoire, Ghana, Togo, Benin, Niger, Nigeria, Angola, Zambia, Malawi, Zimbabwe, Mozambique, Republic of Botswana, Namibia, Republic of South Africa, Swaziland, Lesotho, Madagascar, Mauritius, Comoros, Saint Helena, Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Fiji, Kiribati, Nauru, Tuvalu, Samoa, tonga, Niue, The Cook Islands, American Samoa, Cocos Islands, Guam, Northern Mariana Islands, New Caledonia, French Polynesia, Tokelau, Wallis And Futuna, Canada, United States, Mexico, Bahamas, Cuba, Jamaica, Haiti, The Dominican Republic, Saint Kitts and Nevis, Antigua and Barbuda, Commonwealth of Dominica, Saint Lucia, Saint Vincent and the Grenadines, Barbados, Grenada, Trinidad and Tobago, Anguilla, Bermuda, Greenland, Guadeloupe, Jersey, Cayman Islands, Martinique, Montserrat, Saint Pierre And Miquelon, Puerto Rico, Sint Maarten, United States Minor Outlying Islands, U.S.Virgin Islands, Guatemala, Belize, Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Llívia, Brazil, Chile, Argentina, Uruguay, Paraguay, Curacao, Falkland Islands, French Guiana
China, Japan, South Korea, North Korea, Mongolia, Hong Kong-China, Macao-China, Taiwan-China, Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, Philippines, East Timor, Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, Iran, Iraq, Azerbaijan, Georgia, Armenia, Turkey, Syria, Jordan, Israel, State of Palestine, Saudi Arabia, Bahrain, Qatar, Yemen, Oman, United Arab Emirates, Kuwait, Lebanon, Cyprus, Afghanistan, Norway, Sweden, Finland, Denmark, Iceland, Aland Islands, Bonaire,SaintEustatiusAndSaba, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Kosovo, Germany, Poland, The Czech Republic, Slovakia, Hungary, Austria, Liechtenstein, Switzerland, United Kingdom, Ireland, Netherlands, Belgium, Luxembourg, France, Monaco, Guernsey, Isle Of Man, Spain, Portugal, Andorra, Italy, Greece, Malta, Vatican, San Marino, Slovenia, Croatia, Albania, Romania, Bulgaria, Serbia, Macedonia, Bosnia and Herzegovina, Montenegro, French Southern Territories, Egypt, Sudan, Tunisia, Algeria, Libya, Morocco, Ethiopia, Somalia, Eritrea, Djibouti, Uganda, Tanzania, Rwanda, Burundi, Seychelles, Kenya, South Sudan, Reunion, Mayotte, Chad, Central African Republic, Cameroon, Equatorial Guinea, Gabon, The Republic of Congo , The Democratic Republic of the Congo, The Democratic Republic of Sao Tome and Principe, Mauritania, Western Sahara, Senegal, Gambia, Mali, Burkina Faso, Guinea, Guinea-Bissau, Cape Verde, Sierra Leone, Liberia, Republic of Côte d'Ivoire, Ghana, Togo, Benin, Niger, Nigeria, Angola, Zambia, Malawi, Zimbabwe, Mozambique, Republic of Botswana, Namibia, Republic of South Africa, Swaziland, Lesotho, Madagascar, Mauritius, Comoros, Saint Helena, Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Fiji, Kiribati, Nauru, Tuvalu, Samoa, tonga, Niue, The Cook Islands, American Samoa, Cocos Islands, Guam, Northern Mariana Islands, New Caledonia, French Polynesia, Tokelau, Wallis And Futuna, Canada, United States, Mexico, Bahamas, Cuba, Jamaica, Haiti, The Dominican Republic, Saint Kitts and Nevis, Antigua and Barbuda, Commonwealth of Dominica, Saint Lucia, Saint Vincent and the Grenadines, Barbados, Grenada, Trinidad and Tobago, Anguilla, Bermuda, Greenland, Guadeloupe, Jersey, Cayman Islands, Martinique, Montserrat, Saint Pierre And Miquelon, Puerto Rico, Sint Maarten, United States Minor Outlying Islands, U.S.Virgin Islands, Guatemala, Belize, Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Llívia, Brazil, Chile, Argentina, Uruguay, Paraguay, Curacao, Falkland Islands, French GuianaElectric hard seal butterfly valve, based on imported advanced technique, adopts fine J shape elastic seal ring and triple offset multilayer metal hard sealing structure. Applicable temperature belows 425℃. It is widely used to regulate flow or closure medium in metallurgy, petroleum, power and other industries. The valve utilizes triple offset sealing structure. Valve seat and disc made of stainless steel with different hardness, have good corrosion resistance and long service life. The valve has bi-directional sealing, according to GB/T13927-92 pressure test standard.
Characteristics of electric hard seal butterfly valve
1. The valve adopts triple offset sealing structure which cannot cause abrasion to valve seat and disc, having good seal.
2. Seal ring made of stainless steel, combines with the advantages of metal hard seal and elastic seal. No matter under low or high temperature, seal ring has good seal.
3. Disc overlay with STL, has abrasion resistance and long service life.
4. Large size butterfly valve, utilizing lattice structure, has high strength, large flow area and small flow resistance.
5. The valve has bi-directional seal. It can be installed at any position without the limitation of medium flow and space.
6. Actuating device adopts multistage installment which is convenient to use.
Technical parameter

Standards
| Manufacturing standard | JB/T 8527-97 |
| Flange standard | GB9113-2000 |
| Face to Face standard | GB12221-89 |
| Examination standard | GB/T 13927-92 |
Connection Dimensions (unit: mm)


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