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Address: Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

Inner threaded swing check valve

The release date:[2017-08-07]     hits

Internal thread check valve

Product information
Chief features:
1. Connection thread: BSP, NPT, JIS
2. For horizontal or vertical lines
3. Swing or lift type disc
4. Model 4. H14w-16p h14w-25p h14w-200lb h14w-10k h14w-1000wog h14w-2000psi



Thread check valve attributes

H14W inner threaded swing check valve is a precision casting body of silicon sol.
Introduce the foreign advanced processing technology, the structure is reasonable, modelling beautiful.
The seat adopts the elastic sealing structure, the opening and closing is easy and reliable.
Used to prevent the flow of media in the pipeline.
Applicable media: water, oil, steam, acid medium, etc.
Working principle:
Internal thread swing check valve with built-in rocker arm swing structure, all the opening and closing of the valve is installed within the body and do not penetrate the body, in addition to the flange parts with sealing gasket and seal ring, the whole not funnelled outside, put an end to the valve leakage.
Has been widely used in chemical, metallurgy, pharmaceutical and other fields.
Product features:
1. Simple structure, small volume and light weight.
2. Smooth flow path and small fluid resistance. The disc can be completely opened under very small pressure.
3. Easy to maintain, the ball valve structure is simple, the sealing ring is generally active, and it is convenient to remove and replace.
4. Multiple thread types: G · NPT. Bspt.bsp DIN259/2999 is available.
Standard for use of screw check valves:
During the use of this valve, the medium flows in the direction of the arrow.
1, when the medium flow direction by the regulation, the disc by the function of medium force, by open medium counter-current, due to the weight of the disc and disc, the function of reverse force by the medium and the valve seat valve sealing surface closed and closed, to achieve the purpose of preventing medium counter-current.
2. The sealing cover of valve body and disc shall be covered with stainless steel.
3. The structural length of this valve is in accordance with the provisions of gb12221-1989, and flange connection size according to JB/t79-1994


Thread check valve Product Specification

产品规范

Product

Specification

设计规范

Design Spec

结构长度

Face to Face

连接法兰

Flange End

试验与检验

Test & Check

压力-温度

Pressure-Temp

产品标识

Marking

供货规范

Supply

GB/T 12236

GB/T 12235

GB/T 12221

JB/T 79

JB/T 9092

GB/T 9131

GB/T 12220

JB/T 7928

Thread check valve Main parts Material Main Part Material

APIRT VALVE

序号

零件名称

材质

1

阀体

不锈钢CF8M/CF8

2

阀盖

不锈钢CF8M/CF8

3

摇杆插销

不锈钢316/304

4

阀瓣

不锈钢CF8M/CF8

5

螺塞

不锈钢316/304

6

螺塞垫片

聚四氟乙烯PTFE

APIRT VALVE
Main External And Connection dimensions of thread check valves

内螺纹止回阀

产品信息

主要特点: Chief features

1.连接螺纹:BSP,NPT,JIS

2.水平和垂直管线适用 2.For horizontal or vertical lines
3.旋启式或升降式阀瓣 3.Swing or lift type disc
4.型号 4.H14W-16P H14W-25P H14W-200LB H14W-10K H14W-1000WOG H14W-2000PSI

螺纹止回阀属性

H14W内螺纹旋启式止回阀是由我厂硅溶胶精密铸造阀体。引进国外先进加工的工艺,结构合理、造型美观。阀座采用弹性密封结构,启闭轻松密封可靠。用来防止管路中的介质倒流。适用介质为:水、油品、蒸汽、酸性介质等。

工作原理:

内螺纹旋启式止回阀采用内装摇臂旋启式结构,阀门的所有启闭件都装于阀体内部,不穿透阀体,除了中法兰部位用密封垫片和密封环外,整体没有外漏点,杜绝阀门外泄的可能。已被广泛应用于化工、冶金、制药等多个领域。

产品特点:
1、结构简单、体积小、重量轻。
2、流道通畅、流体阻力小,阀瓣在很小的压差下就能完全打开。
3、维修方便,球阀结构简单,密封圈一般都是活动的,拆卸更换都比较方便。
4、多种螺纹类型:G·NPT.BSPT.BSP DIN259/2999可供选择。

螺纹止回阀采用的标准:

本阀门在使用过程中,介质按图示箭头方向流动。
1,当介质按规定方向流动时,阀瓣受介质力的作用,被开启介质逆流时,因阀瓣自重和阀瓣受介质反向力的作用,使阀瓣与阀座的密封面密合而关闭,达到阻止介质逆流的目的。
2,阀体及阀瓣的密封面采用不锈钢堆焊。
3,本阀门的结构长度按GB12221-1989的规定,法兰连接尺寸按JB/T79-1994的规定

螺纹止回阀产品规范 Product Specification

产品规范

Product

Specification

设计规范

Design Spec

结构长度

Face to Face

连接法兰

Flange End

试验与检验

Test & Check

压力-温度

Pressure-Temp

产品标识

Marking

供货规范

Supply

GB/T 12236

GB/T 12235

GB/T 12221

JB/T 79

JB/T 9092

GB/T 9131

GB/T 12220

JB/T 7928

螺纹止回阀主要零部件材料 Main Part Material

APIRT VALVE

序号

零件名称

材质

1

阀体

不锈钢CF8M/CF8

2

阀盖

不锈钢CF8M/CF8

3

摇杆插销

不锈钢316/304

4

阀瓣

不锈钢CF8M/CF8

5

螺塞

不锈钢316/304

6

螺塞垫片

聚四氟乙烯PTFE

APIRT VALVE

螺纹止回阀主要外形和连接尺寸Main External And Connection

Main connection size and weight

SIZE

1/2″

3/4″

1″

11/4″

11/2″

2″

21/2″

A

15

20

25

32

40

50

65

H

42

51

60

67

75

81

93

L

65

80

90

105

120

140

180


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Post box: rtv@zjrtfm.com
The ministry of foreign trade:0577-8588 8220 / 0577-8588 8221
E-mail: valve@zjrtfm.com / monica@zjrtfm.com
Web site: www.dekainu.com
Address:Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

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