Product Name:GM high vacuum diaphragm valve

Brand: Xinrongda

Origin: Wenzhou

Design and Manufacturing: GB122239

Structural length: GB12221、JB1688

Flange connection size: GB4216、JB78

1、 Purpose:

This valve is used in vacuum systems to cut off or connect airflow. The ideal accessory for welding lithium bromide refrigeration equipment with connecting pipes.

Applicable temperature: NBR -25~100 ℃ FKM- 30~150℃

Applicable media: air and non corrosive gases

Scope of application: 105~1.3 × 10-4

Leakage rate: 6.7 × 10-4

2、 Materials

Valve body: carbon steel, stainless steel

Diaphragm: Nitrile rubber, Fluororubber

Valve stem: stainless steel

3、 Testing

Lining layer: Electric spark detection

Testing and inspection shall be conducted in accordance with GB/T13297 standard

Nominal pressure: PN（Mpa）

Valve body: PN × 1.5

Sealing: PN × 1.1

• I-type connecting pipe welding (Figure 1)

5、 Type II connecting pipe welding (Figure 2)

6、 Type III connecting pipe welding (Figure 3)

7、 IIII type connecting pipe welding (Figure 4)

The opening and closing component of a high vacuum diaphragm valve is a diaphragm made of soft material, which separates the inner cavity from the valve cover inner cavity and driving components. Diaphragm made of soft sealing materials such as rubber or plastic has good sealing performance. Due to the vulnerability of the diaphragm, it should be replaced regularly based on the characteristics of the medium. High vacuum diaphragm valves are used for media containing hard suspended solids; Due to the fact that the medium of the high vacuum diaphragm valve only comes into contact with the valve body and diaphragm, there is no need for a stuffing box, and there is no problem of stuffing box leakage, which may cause corrosion to the valve stem. Welcome new and old customers to inquire about information and news related to high vacuum diaphragm valve products!