Silence check valve

Product Overview

HH46X, HH48X, HH49X quiet slow stop check valve series products can be used in clean water, sewage, sea water and other media of the drainpipe, not only can prevent the backflow of media, but also can effectively limit the destructive water hammer, to ensure the safety of the use of pipelines.It has novel structure, small volume, light weight, small fluid resistance, reliable sealing, smooth opening and closing, wear resistance, long service life, oil pressure, slow closing is not affected by the medium, has better energy-saving effect and other characteristics.

Structural characteristics

1. The structure length is short, and its structure length is only 1 / 4 ~ 1 / 8 of the traditional flange check valve
2. Small volume, light weight, its weight is only 1 / 4 ~ 1 / 20 of the traditional micro resistance slow closing check valve
3. The valve disc closes quickly and the water hammer pressure is small
4. Horizontal or vertical pipes can be used and installed conveniently
5. The flow channel is unobstructed and the fluid resistance is small
6. Sensitive action and good sealing performance
7. The stroke of valve disc is short and the impact force of closing valve is small
8. Overall structure, simple and compact, beautiful appearance
9. Long service life and high reliability

Execution standard

Flange standard: GB/ T17241.6GB /T 9113
Test standard: GB/T 13927 API 598

Performance parameter

Nominal pressure: 1.0~ 2.5MPa
Nominal size: 40 ~1000mm
Slow closing time: 3~ 60 seconds
Applicable medium: clean water, sea water, sewage
Applicable temperature: 0~ 80℃ (up to 200℃ if needed)

Product Dimensions

DN

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

800

900

1000

L

140

150

170

180

190

200

210

230

250

270

290

310

330

350

390

430

470

510

550

H

200

215

225

235

280

290

310

350

415

450

480

550

585

640

720

780

840

990

1050

H1

88

98

108

118

130

148

172

210

240

264

297

324

351

379

434

491

549

600

655

Privacy policy

This privacy Statement applies to all users of the Site and the services provided by the Site.We solemnly promise to respect and protect users' personal privacy. We will not publish any information related to users without users' authorization, unless required by law or procedure.We will regularly review privacy protection measures, track security technology trends, and update technology and management measures.< br/> 1. Users shall provide necessary personal information, usually including name, gender, contact number and E-mail address, when using the services of leaving messages, consulting and interactive questions on the website of China National Industry Holding Group Co., LTD.We will keep the user information and relevant requirements confidential management.
2. We will adopt technical and management measures to protect users' privacy.When sensitive information is provided to us by users, we will take reasonable steps to protect sensitive information of users, and we will also take reasonable security measures to protect personal information that has been stored.This website will strictly manage and protect the data provided by users, and will use the corresponding technology to prevent the loss, theft or change of users' personal data.
3. The website of China National Engineering Holding Group Co., Ltd. will strictly protect users' personal privacy and promise not to arbitrarily disclose users' personal information without users' consent.However, under the following exceptions, the aforementioned promises will not be warranted to disclose the user's relevant information.These circumstances include, but are not limited to: (1) when the user behavior on this site violates the measures for the administration of international networking of computer information network security protection, the measures for the administration of Internet information service, the "Internet electronic bulletin service management regulations" and "the standing committee of the National People's Congress on maintaining Internet security decision", or may damage or interfere with the rights and interests of other users or cause others to suffer damage, disclosure of personal information is to identify the user, contact, or to take legal action when necessary action.
(2) Personal information that must be disclosed or made public as required by laws and regulations.
(3) When judicial organs or other authorized organs perform official duties according to law and require websites to disclose specific personal data.
4. The website of China National Engineering Holding Group Co., Ltd. has taken complete technical measures to protect the integrity and confidentiality of users' information.However, the website of China National Industry Holding Group Co., Ltd. shall not bear any legal liability for the damage, disclosure and loss of user information caused by force majeure or special external forces such as computer virus infection or hacker attack, but we will take necessary measures to reduce the loss of users.
5. At any time when users think that the website of China National Industry Holding Group Co., Ltd. does not comply with this statement, please inform us by E-mail to GuoGong@GFGFV.com and we will make every effort to take corresponding improvement measures.

Legal notices

I. GUOGONG HOLDING GROUP CO.,LTD. independently owns or co-owns with relevant content providers the copyright of relevant content on this website.Any person who intends to use the text, pictures, video/audio and other information on the Website shall contact the website in advance and obtain explicit written permission.Without permission, any media, websites, business organizations and individuals should not be allowed to copy the contents of this website or work in the countries holding group co., LTD., belongs to a mirror on the server, and may not be all or part of this site page, make commercial links and their content, and shall not distort and tamper with the content on this web site is.
Second, all pages in the official website of creative format framework, animation, interactive design, structure, color, text, ICONS and other appropriate combination, in the form of digital published in digital form and fixed on the computer's hard drive space, contact by the public with the help of a network host, give a person with visual aesthetic feeling, this is not a simple arrangement of facts, has the originality.The above description is protected by this copyright notice.
Iii. We have tried our best to obtain permission from the copyright owner for the information reproduced on this website. If there is any omission, please contact this website.
Iv. The views expressed or implied in the relevant articles and materials reproduced on this website do not represent that of China National Industry Holding Group Co., LTD.
V. This website cannot control or guarantee the accuracy, timeliness and completeness of the information of each website linked to it.
The right to modify and update the website Statement belongs to the website of China National Industry Holding Group Co., LTD.
+86 0578-2626111
qrCode