Product Name:G49W (unlined), G49J (rubber lined) three-way diaphragm valve

Product model: G49W、G49J

Brand: Xinrongda

Origin: Wenzhou

G49W (unlined), G49J (rubber lined) three-way diaphragm valve introduction:

Parts list: 1. Valve body 2. Diaphragm 3. Valve disc 4. Valve stem 5. Valve cover 6. Handwheel

Design and Manufacturing: GB122239

Structural length: GB12221、JB1688

Flange connection size: GB4216、JB78

1、 Purpose:

Purpose: This valve is designed to control non corrosive or generally corrosive media. The surface of the valve body cavity is unlined or covered with various rubber options, suitable for different working temperatures and fluid pipelines.

Applicable temperature: ≤ 85 ℃, ≤ 100 ℃, ≤ 120 ℃, ≤ 150 ℃ (according to lining and diaphragm materials)

Pressure level: PN1.0

2、 Materials

Valve body: cast iron, ductile iron, carbon steel, stainless steel

Valve cover: cast iron, ductile iron, carbon steel, stainless steel

Lining: unlined, rubber

Diaphragm: Rubber

Valve disc: cast iron

Valve stem: carbon steel, stainless steel

Handwheel: Cast Iron

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

4、 Structural characteristics

Diaphragm valve is a special form of globe valve;

1. Elastic sealed opening and closing components ensure no internal leakage;

2. The streamlined flow channel reduces pressure loss;

3. There is no stuffing box, so there is no leakage;

4. The valve body and cover are separated by a middle diaphragm, so that the valve cover and stem parts above the diaphragm are not corroded by the medium;

5. The diaphragm is replaceable and has low maintenance costs;

6. The diversity of lining materials can be applied to various media and have good corrosion resistance.

5、 Main dimensions and weight

The opening and closing component of a three-way diaphragm valve is a diaphragm made of soft material, which separates the inner cavity from the inner cavity of the valve cover and the driving parts. 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. Three way diaphragm valve is used for media containing hard suspended solids; Due to the fact that the medium of the three-way 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 call and inquire about information and news related to three-way diaphragm valve products!