欢迎大家就Durgo吸气阀、支管减压阀、倒流防止器在建筑给排水系统中的应用展开讨论，本站邀请了深圳市华力大机电技术有限公司的专业技术工程师为您提供全程解答服务（类似理正大哥的服务一样），大家还可以随时索取样本和网上询价，需要的可以留下联系方式。工 作 原 理 及 功 能：1. 当排水立管内出现负压时阀瓣沿中心导轨浮起，吸进空气，防止负压抽吸水封。 2. 无负压时，阀瓣因自重沿中心导轨落下严密关闭阀口，阻止排水系统的臭气逸进室内。
欢迎大家就Durgo吸气阀、支管减压阀、倒流防止器在建筑给排水系统中的应用展开讨论，本站邀请了深圳市华力大机电技术有限公司的专业技术工程师为您提供全程解答服务（类似理正大哥的服务一样），大家还可以随时索取样本和网上询价，需要的可以留下联系方式。
工 作 原 理 及 功 能：
1. 当排水立管内出现负压时阀瓣沿中心导轨浮起，吸进空气，防止负压抽吸水封。
2. 无负压时，阀瓣因自重沿中心导轨落下严密关闭阀口，阻止排水系统的臭气逸进室内。
3. 提前报警排水堵塞：排水管下游堵塞时，上游的空气被封闭在管内，阻止排水。所以一旦发现器具排水水位下降较慢，说明下游出现堵塞，可提前清通，防患于未然。
功 能 Funtions：
精密注塑ABS阀体和光滑中心导轨 开闭灵活
重力差压工作原理 只吸气不排气 开启水头（负压值）低 补气灵敏表面精细的EPDM橡胶密封环 密封严密可靠
大容量吸气能力和排水当量负载力可适合多层和高层建筑
静音无声操作 自动 无噪音
筒化排水和通气管路 降低建筑成本
样本索取和价格咨询请联系：
深圳市华力大机电技术有限公司
Email:aaa@farada.net(客户服务) webmaster@farada.net(技术支持)
地址：深圳市新洲路天健名苑B21C 电话：0755-82942422 82942466 传真：0755-82903394
52楼
在民用建筑技术措施的给水排水部分中提过不能以吸气阀替代通气管，固现在不用。
支管减压不借，可否送些型号资料。Lee_jua@hotmail.com。
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53楼
也发给一份吧，支管减压阀用的不是太多
hukan321@sohu.com
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54楼
英国DURGO多哥吸气阀标准
（BRITISH BROAD OF AGREMENT）
BBA●
Product
l THIS CERTIFICATE REPLACES CERTIFICATE No 89/2285 AND RELATES TO 32mm,56mm,82mm,110mm AND 125mm DURGO AIR ADMITTANCE VALVES.
l The valves are for use within buildings in above ground drainage systems designed in accordance with this Certificate.
l The valves provide a means of ventilation to the drainage system to prevent the loss of water seals in traps and consequent release of foul air into the building.
l The drainage systems and the installation and use of the valves must be in accordance with the conditions set out in the Design Data and Installation parts of this Certificate.
l The products are manufactured by Durgo Verkstads AB and marketed in the United Kingdom by Crisfactord Ltd, 67 foxholes Hill, Exmouth, Ex8 2DH.
BUILDING REGULATION
1 The Building Regulation 1991(as amended 1994) (England and Wales)
The secretary of state has agreed with the BRITISH BROAD OF AGREMENT the aspects of performance to be used by the BBA in assessing the compliance of air admittance valves with the Building Regulation.In the opinion of the BBA,Durgo Air Admittance Valves,if used in accordance with the provisions of this certificate, will meet or contribute to meeting the relevant requirements.
Requirement: H1 Foul water drainage
Comment: Durgo valves will:
(1) provide adequate ventilation to prevent the loss of water seals in trapped appliances(see sections 6,7 and 8 of this certificate)
(2) prevent foul air from entering the building (see section 12.1 of this certificate)
(3) enable access to the sanitary pipework for clearing blockages provided they are fitted into ring seal sockets(see section 7.1 of this certificate)
(4) contribute to the ventilation of underground drains(see sections 7.2 and 7.3 of this certificate)
Requireement: Regulation 7 Materials and workmanship
Comment: The products are acceptable.
2 The Building Standards (Scotland) Regulations 1990 (as amended)
In the opinion of the BBA,Durgo Air Admittance Valves,if used in accordance with the provisions of this certificate , will satisfy or contribute to satisfying the various regulations and technical standards as listed below.
Regulation: 10 Fitness of materials
Standards: B2.1-B2.2 Selection and use of material,fitting,components and other manufactured products
Comment: The products are acceptable
Regulation: 24 Drainage and sanitary facilities
Standard: M2.2 Drainage systems
Comment: Durgo valves can meet the relevant requirements of these standards.See sections 6,7 and 8 of this certificate.
3 The Building Regulation (Northern Ireland)1994(as amended 1995 and 1997)
In the opinion of the BBA,Durgo Air Admittance Valves,if used in accordance with the provisions of this certificate , will satisfy or contribute to satisfying the various regulations and as listed below.
Regulation: B2 Fitness of materials and workmanship
Comment: The products are acceptable
Regulation: N2 Drainage systems
Comment: The valves provide adequate ventilation to prevent the destruction of the water seals in traps (See sections 6,7 and 8 of this certificate).
TECHNICAL SPECIFICATION
4 Description
4.1 Durgo Air Admittance Valves comprise an injection moulded two part acrylonitrile butadiene styrene (ABS) body,snap-fitted and bonded together and incorporating a seating for sealing purposes. Two diametrically opposed holes in the lower moulding allow condensation to return to the discharge stack . The valve incorporates a sliding ABS disc and EPDM (ethylene propylene diene monome) seal bought in to Durgo Verkstads AB’s specification (Figure 1).
4.2 An expa
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55楼
請各位看英國DURGO標準第六節, 我個人解釋是:
82 82.4 {3} x x x 意思是說 3英吋以上才可以當做伸頂通氣
125 140 x x x當做伸頂通氣也最多12層, 所以克里姆林宮20層, 金字塔110層, 也不太適用.....
2英吋以下僅為分路排放 [BRANCH DISCHARGE] 請大家討論! 指教!
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56楼
Durgo吸气阀、支管减压阀、倒流防止器这三样产品用过的人还不太多，颇多疑异，希望主办方在这里公布这三种产品的样本和价格，以便更多的人了解、讨论和应用。如有更详细资料，请发邮件sunfengying22@yahoo.com.cn
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57楼
支管减压阀，与干管减压有很大的差别吗？在干管设置投资不是更少吗？
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58楼
吸气阀、支管减压阀、倒流防止器这三样产品能给我发份资料吗？
HZY6818163.COM
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59楼
大项目才可以如此不惜财力做这种美观的东西，不过设计时一定要考虑好检修问题，否则等臭气冲上来客人投诉时就玩了。毕竟橡胶制品不能保证50年不坏啊！
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60楼
《2003 全国民用建筑工程设计技术措施——给水排水》 分册一书中
4.8.9 在建筑物内不得以设置吸气阀替代通气管。
这一条我也看到了，岂不是和大家讨论的矛盾吗？
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61楼
谢谢ysh301305 ，我已查到了《2003 全国民用建筑工程设计技术措施——给水排水》
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