Valve Design: EN 1171/DIN 3352/EN 1074-1

Face to Face: EN 558-1 Series 14/ DIN 3202 F4

Flange Drilling: EN 1092-2/ ISO 7005-2

Hydraulic Test: EN 12266/ ISO 5208

Shell Test Pressure: 24 bar

Sealing Test Pressure: 17.6 bar

Some Ending Customer:


 

The main advantages of gate valve include:

1. The fluid resistance of the valve is small. Because the valve body of the gate valve is a straight-through type and the flow of the medium doesn't change direction, the fluid resistance of it is small compared with other kinds of valves.

2. The sealing performance is better than that of other shut-off valves. The opening and closing of it are more convenient.

3. The range of applications is wider. In addition to steam, oil and other media, it can be used in medium containing granular solid and with large viscosity. It can also be used as an air-venting valve and a low vacuum system valve.

4. The gate valve has dual flow directions. It's not subject to the flow directions of the medium. Therefore, it is suitable for use in a pipeline where the medium may change the flow direction. It is also easy to install.
 

Cast iron resilient seat gate valve material list

Body: Ductile Iron GGG40/50

Wedge: Ductile Iron GGG40/50

Wedge Coating: NBR/ EPDM EN681-1

Wedge Nut: Copper Alloy

Stem: Stainless Steel X20 Cr13

Bonnet Gasket: NBR/ EPDM EN681-1

Bonnet: Ductile Iron GGG40/50

O Ring Back Sealing: EPDM/ NBR

Stem Collar: Stainless Steel/ Brass

O-Ring: EPDM/ NBR

Stuffing Nut:  Copper Alloy

Dust Guard: EPDM/ NBR

Handwheel: Ductile Iron GGG40/50

Stem Cap: Ductile Iron GGG40/50










MOQ

We do not have any MOQ for this valve, 1 set order is also can be accepted.

Delivery

It depends on the order quantity, the common delivery time will be 15-20days after received payment.
 

Payment way

30% deposit, the balance will be paid before loading.

Hydraulic testing

We promise 100% hydraulic testing before exporting, with the testing machine.

Body testing: 1.5* design pressure

Sealing testing 1.1* design pressure

We can provide a 12-month warranty after the shipping date.

Packing way

Plywood case in exporting standard, bubble plastic packing inside

 FAQ:

1. Yes, sample order is available for quality check and market test.
 
2. Quality is priority, we always attach the importance to quality control from the beginning to the end of the production.Every product will be fully assembled and carefully tested before painting, packing and shipping.

3. It usually takes about 25-30 working days to produce. For big order, it depends on the order quantity.

4. We usually accept T/T, L/C,and others payment.

5. We offer 12months warranty time.

6. Depends on your request, we have standard models in stock. Some special products and big order will be newly produced according to your order.

7. Yes, different models can be mixed up in one container.

8. Our company has been audited and approved ISO9001and WRAS certificate. 

9.  OEM & ODM services will be provided by us depend on your requirement.

Our website: davanflowtek.en.made-in-china.com