Quick Detail

Features

FIRE SAFE DESIGN: Metal seat design provides a fire-safe shut off per API 607. Additionally,  graphite body seals and flexible graphite packing prevents leakage through the body joints and stuffing box, respectively.

ANTI-STATIC DEVICES: Standard anti-static devices ensure electrical continuity between the ball, stem, and body, eliminating the possibility of sparks within the valve created by static electrical charges.

BLOWOUT-PROOF STEM DESIGN: Valves are designed with stem/body connection preventing stem blowout under line pressure.

Technical Drawing

Dimension Check

Witness Test

Why choose Dervos as your partner? 

One Stop Service

Here in Dervos, we can provide you with one stop service by our complete product list, it means, you don’t need to search for various suppliers for different types of valves, and it will surely save your time and energy. All you need to do is choose Dervos and we will provide complete solutions to you.

On Time Delivery

Dervos keeps a high percentage of on time delivery. Why could we achieve that? Our purchasing team follows the order very closely. Plus, our QC and sales person will also do monitoring job on each order.

Strict Quality Control

All the members in the QC team are very experienced and professional. For each order, they will check the raw material, manufacturing process, do the pressure testing on shell and seal, and check the valve dimension per assembly drawing. Lastly, they will inspect the painting and packaging.