时光飞逝！Dervos有另一个具有挑战性的，富有成效的一年，并准备进入阀门市场的第13届。是时候庆祝它的生日了。像往常一样，我们为这场大型Dervos留下了一天。这一天，我们称之为快乐的日子，由相当多的活动组成。我们租了一个大房子，有一个散毛的杂项娱乐设施，例如卡拉OK，私人电影，ar比赛等。更重要的是，宽敞的厨房和用餐区也有利于我们的第一项活动 - 集团烹饪！假设痒痒部分 - 您知道，参与者是一群由所有食品交付应用程序喂养的城市白领工人，您对他们的期望多大？ - 原来不仅仅是惊人：鱼叉在辣椒，肉丸，蘑菇炖锅和埃里克，埃里克，埃里克，埃里克，埃里克，埃里克，埃里克州埃里克州埃里克，创始人。谈到创始人，另一个肯带来了一块精致的蛋糕，成形为13号，美丽和卑鄙。 Plus the exquisite dessert, the meal of that noon really set a wonderful beginning of the happy day. Then we move to the recreational area. If you see someone screaming BACK OFF! STAY AWAY FROM ME! wielding gamepad, shooting monsters on screen, don’t worry, that’s just Jona playing AR games. She’s probably going to win the most dedicated player prize if there were any. One more game I’d like to note is ring toss. The ring needs to circle the bottle and win you the gift coupon beneath it. I know it’s kinda old-stuff, but when you attend another game to win extra chances for ring toss if you don’t gain anything at first round, it would be more fun. The gamer needs to spin 5 circles and flip a bottle cap about 2 meters away at once, with one eye covered all the time. It was crazy dizzy, difficult and fun, cause you could never hit it accurately after 5 circles as you thought the cap was there but it was actually not. In the evening, after a string of group games like Guess the song name and Charade, the climax of the day came as the projection screen started playing a surprising video for West, also the game host, whose journey with Dervos has rang the 10-year bell and hasn’t anticipated for this part. After the video, Eric and Ken, on behalf of the big family, awarded him a secret anniversary gift. Now, let’s call it a day, or it would be better to be ‘let call it 13 years’. If Dervos were a 13-year-old boy, it is when the boy explores the world curiously and energetically. It is like a rising sun from the skyline, we’ll see his sun ray, glory and feel his warmth. Dervosers are striving for this day.
我们通常以2英寸为分界线来决定阀门的锻造或铸造。与其他阀门不同，球阀的制造方法不受阀门通径的影响。即使是大口径球阀，有时也会采用锻造方式。与铸钢球阀相比，锻钢球阀承受强度大，使用性能好。原材锻造质量较好，缺陷较少。对于高压工况，最好选用锻钢球阀。与锻造球阀相比，铸球阀的重量更轻，成本更低。厦门德沃斯是一家通过API认证的止回阀制造和贸易公司，专业生产各种阀门。除了球阀，我们还生产其他工业管道阀门，如闸阀，截止阀，旋塞阀和蝶阀。欲了解更多有关我们行业领先的产品，请立即联系我们。
阀门作为管道中的一个部件，控制着流体的连接和切断。阀门就像汽车上的刹车片，一坏，就可能导致意想不到的后果。因此，阀门的性能和使用寿命直接影响系统的运行。如果阀门损坏，则必须关闭系统进行维护，所带来的损失远远超过这几个阀门的成本。阀门的质量和寿命是如此重要。波纹管密封截止阀在这两方面都特别突出。其双密封不仅保证了零泄漏，而且在氦质谱测试中也达到了零泄漏。非常安全可靠。波纹管可以循环使用10000次以上而不损坏，大大超过普通截止阀填料密封的使用寿命。此外，波纹管密封阀可防止外部灰尘进入阀体，保证介质的洁净度。 In conditions such as high-purity silicon powder, pure oxygen, food, vacuum and other working conditions, the bellows globe valves still have a very outstanding performance. In the process of switching, common globe valves will see dynamic friction between packing and stem, and the packing will be worn and fail. When globe valves are in high and low-temperature occasions, their packing will expand or contract, packing changes, resulting in packing seal failure; As for low-temperature conditions, the packing is easy to freeze, the packing is easy to be scratched by ice in the witching process. In short, the advantages of the bellows globe valve compared with the ordinary globe valve can be summarized as follows. 1. The bellows globe valve can meet the request of zero external leakage in helium mass spectrometry. 2. The service life of the bellows sealed globe valve is much higher than that of the common globe valve, whose packing is susceptible and replacement frequency is higher. 3. The bellows sealed globe valve has a metal barrier at the stem seal, which can be used in working conditions where absolute isolation is required inside and outside the valve. 4. The bellows of the bellows sealed globe valve can expand and contract, which is not affected by thermal expansion and contraction, and it has very obvious advantages in the occasion of large temperature differences. 5. The bellows valve has double sealing. the bellows instinct, the packing is completely isolated from the medium, which protects the packing well and greatly extends the service life. Dervos is a leading valve manufacturer and provider of engineered products for different industries. If you’re looking for feasible solutions, check out our vast range of high-quality valves which includes gate valves, ball valves, butterfly valves, as well as other control valves and more. For more information regarding our high-quality products, contact us today.
旋启式止回阀采用碳钢1.0619制成，符合DIN标准。止回阀为DN80和PN40，或3英寸和300LB。该阀工作温度在-19 ~ 425摄氏度之间。
支付：
订单确认后30％，发货前70％产品产地:
中国颜色：
定制装货港:
上海，中国交货时间：
订单确认后30~60天交货材料：
1.0619操作方法：
非快速详细
类型 |
止回阀 |
大小 |
DN80. |
设计压力 |
PN40 |
建设 |
摇摆不定的类型 |
连接类型 |
射频 |
设计规范 |
DIN 3840 |
端到端 |
DIN 3202 - f6 |
连接结束 |
EN 1092-1 / B1 |
测试和检验 |
EN12266-1 / 2. |
身体材料 |
1.0619 + STL |
圆盘材料 |
1.0619 + 13cr. |
温度范围 |
-29℃〜425℃ |
应用 |
W.O.G |
起源 |
中国 |
产品规格
设计标准:API、ANSI、DIN、JIS、BS、GOST、GB等;
公称通径:1/2 " - 24 " (DN15-DN600);
标称压力：Scass150 - Class2500（PN10-PN420）;
主要材料:WCB、WC6、WC9、LCB、LCC、LC1、LC2、C5、C12、C12A、CF8、CF8M、CF3、CF3M、CF10、CF10M、CF8C、CN7M、904L、4A、5A、6A、哈氏合金C等。
我们还可以根据客户的特殊要求施放和生产阀门。
技术制图
维度检查
涂层厚度检查
精致的包装
常见问题解答
你是工厂还是贸易公司?
A:我们都是。我们有自己的工厂。同时，对于您难以找到的产品，我们有强大的供应商基础来帮助您。
问:你们产品的最小起订量是多少?
答：Moq≥1套
问:你们的产品保修期是多久?
A:一般是12个月，如果要延长保修期，请通知我们。
问：你可以免费提供样品吗？
答：是的，我们可以提供样本，但您需要承担成本。
问:你能根据客户自己的技术图纸生产吗?
答：是的，我们始终可以完全满足客户的特殊要求。
如果您对我们的产品感兴趣并希望了解更多详细信息，请在此处留言，我们会尽快回复您。
8英寸不返回止回阀符合BS 1868的设计代码，带有螺栓发动机罩和摆动型盘。法兰止回阀由碳钢A216 WCB制成。设计功能1.BB：螺栓发动机罩2.打开型盘3.相关的钻孔设计4. uverior流量速率5.散定摩擦损失6.标准装饰材料选择7.外部或内部铰链针可应要求提供8.Cylinder 8.Cylinder和柜台可根据要求提供的重量9.采购阀杆和执行器可应要求提供快速详细型止回阀尺寸8'设计压力ANSI 1500施工螺栓阀罩，摆动型连接凸起面部法兰设计和制造BS 1868结束终端ASME B16.10连接ASME B16.5 Pressure & Temp ASME B16.34 Test & Inspection API 598 Body Material Carbon Steel Applicable Temp -29℃~+400℃ Media W.O.G. Dimension Class 1500 NPS in 2 2 1/2 3 4 6 8 10 12 DN mm 50 65 80 100 150 200 250 300 L-L1 (RF-BW) in 14-1/2 16-1/2 18-1/2 21-1/2 27-3/4 32-3/4 39 44-1/2 mm 368 419 470 546 705 832 991 1130 L2 (RTJ) in 14-5/8 16-5/8 18-5/8 21-5/8 28 33-1/8 39-3/8 45-1/8 mm 371 422 473 549 700 841 1000 1146 H (OPEN) in 12-1/4 12-1/4 13 14 15-3/4 20-7/8 22-1/16 25-5/8 mm 310 310 330 355 400 530 560 650 WT (kg) RF 69 93 140 232 490 990 1490 1970 BW 49 74 111 185 375 803 1250 1625
摆动式止回阀，设计采用PN40 RF法兰，螺栓盖，由铸钢1.0619和SS316装饰材料制成。全孔止回阀可以根据客户的特殊要求制造。快速详细型号无返回阀（止回阀）标称尺寸DN 150名称压力PN 40施工BB，摆动式圆盘，exnternal销连接凸起面部法兰设计和制造DIN 3356端EN 558连接EN 1092测试和检查EN 12266主体材料GS-C25 (1.0619) ApplicableTemp -29℃~+425℃ Media W.O.G. Material No Part Name Carbon steel to ASTM Alloy steel to ASTM Stainless steel to ASTM WCB LCB WC6 WC9 C5 CF8 CF8M CF3 CF3M 1 Body A216 WCB A350 LCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M A351 CF3 A351 CF3M 2 Seat Ring A105 A350 LF2 A182 F11 A182 F22 A182 F5 A182 F304 A182 F316 A182 F304L A182 F316L 3 Disc nut A182 F304 A182 F304 A182 F316 A182 F304L A182 F316L 4 Disc washer A182 F304 A182 F304 A182 F316 A182 F304L A182 F316L 5 Disc A216 WCB A350 LCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M A351 CF3 A351 CF3M 6 Hinge A216 WCB A350 LCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M A351 CF3 A351 CF3M 7 Hinge pin A182 F304 A182 F304 A182 F316 A182 F304L A182 F316L 8 Yoke A216 WCB A350 LCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M A351 CF3 A351 CF3M 9 Bonnet nut A194 2H A194 4 A194 7 A194 8 10 Bonnet bolt A193 B7 A193 L7 A193 B16 A193 B8 11 Gasket Stainless Steel Spiral Wound graphite or Stainless Steel Spiral Wound PTFE 12 Cover A216 WCB A350 LCB A217 WC6 A217 WC9 A217 C5 A351 CF8 A351 CF8M A351 CF3 A351 CF3M 13 Hook screw Steel 14 Name Plate Stainless steel or Aluminum 15 Rivet Stainless steel or Aluminum Other Material ( Alloy 20, ANSI 321, Monel Hastelloy, etc)are available on request Our Service A good customer service is as valuable as product itself. In Dervos, we will offer a full range of customer service to make you feel easy when doing business with us. Providing weekly production report When production begins, you will get production report weekly, so that you can have good command of product status and report to your customer at the meantime. Offering warranty of 18 months 18 months warranty period will be offered after shipment, no concern to purchase valve from Dervos. Providing solutions within 3-days for complaints All the complaints will be solved within 3 days, in this case, you can timely reply and solve problems for your customer, to relax them even when complaints happening.
不锈钢CF8非返回阀功能在非猛杆型盘，ANSI 150法兰端和全港口设计。快速详细型非返回阀（止回阀）尺寸8''设计压力等级150施工非SLAM型连接RF法兰设计和制造ASME B16.34 END ASME B16.10 CONGREAD ASME B16.5压力和TEMP ASME B16.34测试和检验API 598 Body Material A351 CF8 Trim Material SS304 Media W.O.G. Available Modifications for Dervos Valves -Valve Pressure -Valve Size -Reduced Bore & Full Bore -Body & Trim Material (Disc, Seat, Pin, Spring) -End Connection (Flange, BW, SW, Thread, Wafer, Lug) -Available Operation (Bare Stem, With Actuators) -Available Counterweight -Available Cylinder -Customizing Coating -Customizing Packaging Related Knowledge What is non-slam check valve? Water hammer is a hydraulic phenomenon that undergoes an abrupt change in its rate of flow and are caused by sudden shutting or slamming. Water hammer will reduce process efficiency, cause valve damage, gasket joint leaks and other problems. The non-slam check valve is designed to reduce water hammer. An internal spring can prevent the disc from slamming close.The design of a non-slam check valve could eliminate pressure flutuations, vibration and damges. Plus, the disc and spring experience minimal wear over time, which will largely extend the service lives of non-slam check compared to swing check valve.
API6D旋启式止回阀RF连接螺栓阀盖全孔WCB阀体，WCB+13Cr阀瓣，A105+13Cr阀座环，WCB铰链。适用温度:-29℃~+425℃摆动式连接式法兰操作型-阀体材料WCB圆盘材料WCB+13Cr铰链材料WCB阀座材料A105+13Cr设计规范API 6D正面尺寸测试和检查API 598压力和温度介质水、石油和天然气来源中国
中国制造商Dervos提供根据API 6D制造的14英寸摆动止回阀。其他功能封面CL300，RF端连接，WCB主体。
旋启式止回阀采用WCB的A216材料制成。根据BS1868制造，止回阀为6英寸、150LB。该阀工作温度在-19 ~ 425摄氏度之间。
该150LB球阀，由双相不锈钢4A，有一个特殊的V流道球。该阀特别适用于含有纤维、微小固体颗粒、浆液等介质。
同心杠杆操作蝶阀采用铸铁GG25, SS420阀杆和EPDM阀座制成。DN200对夹式蝶阀适用于水中。快速详细类型蝶阀公称尺寸DN200公称压力PN10同心结构类型、三元乙丙橡胶软阀座连接类型圆片型操作杆操作设计代码EN 593面对面EN 558连接端EN 1092测试&检验EN 12266阀体材质铸铁GG25温度-15℃~ + 150℃范围应用水,油,阀门公称压力阀门公称尺寸同心型和偏心型软阀座多层金属阀座全金属阀座阀体和阀内件材料端口连接(双法兰，对夹式，耳片)可用操作(裸杆，电动执行器，气动执行器，气动执行器，气动执行器，气动执行器Dervos阀门全面参与炼油、石油和天然气行业，能够应对非常恶劣的工作环境。我们还可以提供各种材料的阀门，如不锈钢，蒙乃尔，钛，哈氏合金，以满足化工行业的要求。电站工业Dervos可以提供适用于高压和温度要求的电站使用的阀门。
API6D旋启式止回阀RF连接螺栓阀盖全孔WCB阀体，WCB+13Cr阀瓣，A105+13Cr阀座环，WCB铰链。适用温度:-29℃~+425℃摆动式连接式法兰操作型-阀体材料WCB圆盘材料WCB+13Cr铰链材料WCB阀座材料A105+13Cr设计规范API 6D正面尺寸测试和检查API 598压力和温度介质水、石油和天然气来源中国
12英寸高压止压阀设计有压力密封阀，RTJ法兰，倾斜盘，由碳钢WCB机身和硬脸封口制成。快速详细类型止回阀尺寸12''设计压力2500LB施工压力密封帽，倾斜盘式连接RTJ法兰设计和制造ASME B16.34 END ASME B16.10连接ASME B16.5压力和TEMP ASME B16.34测试＆Inspection API 598 Body Material A216 WCB Trim Material 13CR+STL Temp Range -29℃~+350℃ Media W.O.G. Product Range Body Material Range: WCB, WCC, WC1,CF8M, CF8, CF3, CF3M, LCB, LCC Size Range: 2”~60” (DN50~DN1500) End Connection Type: Flange End, Weld End Design Pressure Range: 150lbs~600lbs Temp Range: -46℃~ +425℃ Related Knowledge What is a tilting disc check valve? The disc of a tilting disc check valve has a pivot point at the center of it. It is desinged to overcome weaknesses of general type swing check valve. Compared to swing type check valve, the tilting check valve could remain fully open and steady at lower flow rates. That is to say, the swing check valve needs a high velocity of fluid to keep disc open and a higher cracking pressure. For low pressure situation, the pressure drop of a tilting disc check valve is much lower than the swing type. But at a higher flow rate, the tilting check valve has higher pressure drop than swing type.
不锈钢CF8非返回阀功能在非猛杆型盘，ANSI 150法兰端和全港口设计。快速详细型非返回阀（止回阀）尺寸8''设计压力等级150施工非SLAM型连接RF法兰设计和制造ASME B16.34 END ASME B16.10 CONGREAD ASME B16.5压力和TEMP ASME B16.34测试和检验API 598 Body Material A351 CF8 Trim Material SS304 Media W.O.G. Available Modifications for Dervos Valves -Valve Pressure -Valve Size -Reduced Bore & Full Bore -Body & Trim Material (Disc, Seat, Pin, Spring) -End Connection (Flange, BW, SW, Thread, Wafer, Lug) -Available Operation (Bare Stem, With Actuators) -Available Counterweight -Available Cylinder -Customizing Coating -Customizing Packaging Related Knowledge What is non-slam check valve? Water hammer is a hydraulic phenomenon that undergoes an abrupt change in its rate of flow and are caused by sudden shutting or slamming. Water hammer will reduce process efficiency, cause valve damage, gasket joint leaks and other problems. The non-slam check valve is designed to reduce water hammer. An internal spring can prevent the disc from slamming close.The design of a non-slam check valve could eliminate pressure flutuations, vibration and damges. Plus, the disc and spring experience minimal wear over time, which will largely extend the service lives of non-slam check compared to swing check valve.
中国法兰圆形球阀生产商，Dervos提供法兰端球阀，ASTM A350 LF6，600级，1/2英寸，两件，锻造，API 608，BS 5351，ASME B16.34。
