进口压力自密封锻钢闸阀德国洛克供应各种规格与型号 

一、进口压力自密封锻钢闸阀采用以下结构：

全径锻钢闸阀或缩径锻钢闸阀

明杆支架式（OS&Y）

自定心压板压套式

螺纹连接内压自紧式阀盖

整体式上密封座

承插端符合ASME B16.11

螺纹连接端（NPT）符合ANSI/ASME B1.20.1

1.锻钢阀门采用压力自紧式密封，阀体支管两端为焊接连接。

2.阀坐、阀瓣密封面采用钴基硬质合金等离子喷焊而成，耐磨、抗擦伤性能好。

3.阀杆经抗腐蚀性氮化处理，有良好的抗腐蚀性和抗擦伤性。

Full diameter forged steel gate valve or reduced diameter forged steel gate valve

OS & Y

Self centering pressing plate sleeve type

Screwed internal pressure self tightening bonnet

Integral upper seal seat

Socket end to ASME B16.11

Threaded end (NPT) in accordance with ANSI / ASME b1.20.1

1. Forged steel valve adopts pressure self tightening seal, and both ends of branch pipe of valve body are welded.

2. The sealing surface of valve seat and disc is made of cobalt based carbide plasma spray welding, with good wear resistance and scratch resistance.

3. The valve rod has good corrosion resistance and scratch resistance after anti-corrosion nitriding treatment.

二、进口压力自密封锻钢闸阀产品描述：

德国《LOCKE》洛克进口压力自密封锻钢闸阀(Pressure self sealing forged steel gate valve)有三种阀盖设计形式。第一种是螺栓式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺栓螺母连接，缠绕式垫片 (316夹柔性石墨制造)密封。客户有特殊要求时也可采用金属环连接。第二种设计形式是焊接式阀盖，按这种设计形式的阀门，其阀体与阀盖用螺纹连接，全焊密封。客户有特殊要求时也可采用全焊逶连接。第三种是压力自紧式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺纹连接，内压自密封环密封。

There are three design forms of pressure self sealing forged steel gate valve. The first type is bolted bonnet. The valve body and bonnet are connected by bolts and nuts, and the spiral wound gasket (made of 316 clip of flexible graphite) is sealed. Metal ring connection can also be used when customers have special requirements. The second design is welded bonnet, according to this design, the valve body and bonnet are connected by thread and sealed by full welding. When customers have special requirements, they can also use full welded wire connection. The third type is pressure self tightening bonnet. The valve body and bonnet are connected by thread and sealed by internal pressure self sealing ring.  

三、进口压力自密封锻钢闸阀技术参数：

1、口径尺寸:DN10-DN200  [3/8＂－8＂]

2、压力范围:PN160-PN420  900LB-2500LB

3、温度范围: -40℃-500℃

4、阀体材质:锻钢、锻不锈钢

5、阀杆阀盖材质:和本体一样

6、密封材质:金属密封

7、填料:增强型PTFE

8、连接方式:对焊、法兰、螺纹

1. Caliber size: dn10-dn200 [3 / 8 "- 8"]

2. Pressure range: pn160-pn420 900lb-2500lb

3. Temperature range: - 40 ℃ - 500 ℃

4. Valve body material: forged steel, forged stainless steel

5. Material of valve stem and bonnet: the same as the body

6. Seal material: metal seal

7. Filler: Reinforced PTFE

8. Connection mode: butt welding, flange, thread