DST Full Bore Drain Valve 3 7/8″ x 15000 psi for Slim Hole

Product Description

Payment & Shipping Terms Supply Capacity
Unit Price: 10.0 USD Production Capacity: 8 pcs/month
Trade Term: FOB,CFR,FCA Packing: polywood case
Payment Terms: T/T Delivery Date: stock
Min. Order: 1 Piece/Pieces
Means of Transport: Ocean

DST Full Bore Drain Valve 3 7/8″ x 15000 psi for Slim Hole

Slim Hole Drill stem testing Full Bore Drain Valve 3 7/8″ OD

Introduction of the Drain valve

The drain valve is used to drain the volume fluid and release pressure when string testing finished, including Sleeve Type Drain valve and Full Bore Drain valve.

The drain valve consists of a ported body, sliding sleeve, and rotating nut, which controls the position of the sliding sleeve. The sleeve either covers or exposes the ports in the body of the valve. The drain valve is suitable for sour service at all temperatures. A drain collar and associated components are required when relieving pressure.

Specification of the Full Bore Drain Valve

Casing size/in OD/       mm ID/ mm Working pressure / Mpa Service environment Working temperature Connection
3 7/8″ 98.5 45 70


Mud, Crude Oil, Natural gas with H2S and acid –29oC ~





     5″ 127.5 57