3 7/8" Drain Valve DST (Drill Stem Testing )

Model: KW-DST-Sleeve Type Drain Valve-008
Place of Origin: Shaanxi,China (Mainland)
Power: Pneumatic
Standard or Nonstandard: Standard
Pressure: High Pressure
Structure: Safety
Material: Alloy
Temperature of Media: High Temperature
Media: Gas
Brand Name: Kingwell-Sleeve Type Drain Valve-03
Certification:: API, ISO
Size:: 3 7/8"
service:: H2S, CO2
standard: NACE MR0175
Working condition: High pressure high temperature(HPHT)
Type: Full bore drill stem testing
Product model: Sleeve Type Drain Valve
package: Wood case or steel carton
Application: Oil well testing
Condition: New


basketAdd to Basket  Edit

Share |

Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:1.0 USDProduction Capacity:100 sets per month
Trade Term:FOB,CFR,CIF,DDP,DAP,CIP,CPT,FCA,EXWPacking:wood case or steel...
Payment Terms:L/C, D/P, D/A, T/TDelivery Date:within 1-2 month(s)...
Min. Order:1 Set/Sets
Means of Transport:EXPRESS, Ocean, Air, Land

ST tools 3 7/8" Sleeve Type Drain Valve

Size:3 7/8""

Certification::API, ISO

Class:Drain Valve

Type:Sleeve Type

Working pressure :10000psi ~ 15000psi

Application:Drill stem testing
Service: H2S, CO2

Condition: New
Standard:NACE MR0175
Working condition: High pressure High temperature(HPHT)  

Brief Introduction

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.

Features and Benefits

• Allows pressure trapped between two closed valves to be relieved in a controlled manner

• Used to recover large volume fluid samples


The drain valve is installed between any two valves that may come out of the hole with pressure or fluid trapped between them. Pressure is relieved by installing the drain collar and drain nipples on the drain valve. Valves, lines, or sample bottles may be attached to the drain nipples depending on the desired disposition of the fluid in the string. After the drain collar assembly is attached, the ports in the tool are exposed by using a chain wrench or pipe wrench to rotate the drain nut, which moves the sliding sleeve.

When the ports in the sleeve are aligned with the ports in the body of the tool, the fluid may be drained.

It is also possible to trap a large volume fluid sample between two valves if a sample chamber of some kind (tubing, drill collar, etc.) is placed between the valves. In most cases, the drain valve would be run at the bottom of the sample chamber to facilitate transfer. This will not be a PVT sample.

1. Halliburton type, all could change with Halliburton parts.
2. All equipments are produced according to API standard NACE MRO175-2002

Below are spec for you reference:
DST tools 7Sleeve Type Drain Valve

Meets NACE-0175 requirements (>175°F)

Service temperature up to 450°F

The values of tensile, burst, and collapse strength are calculated with new tool conditions.

Energy Theory for burst and collapse strength, and stress area calculations for tensile strength.

Pressure rating is defined as the differential pressure at the tool. (Differential pressure is the difference in pressure between the casing annulus and the tool ID.)


There is draft Sleeve Type Drain Valve for your reference.

DST tools 3 7/8Sleeve Type Drain Valve

Xi'an KINGWELL OILFIELD MACHINERY Co., Ltd. (KINGWELL) is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provides complete solutions.

With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid control products.

KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation; our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices. Our products have been exported to Europe, American and MiddleEast.

Design & Development

Kingwell has an ongoing relationship with Xi'an Petroleum University and built up long term cooperation with China Aerospace Group for more than 10 years. Design Department is familiar with CAD and Pro-E facilities and has on rolls qualified & experienced engineers. Now, they are engaged in development of new products as required in the market place. Kingwell' products are validated in-house in a Test Well, a Sub-surface Type Test Facility with simulated well conditions up to 15000 psi Differential pressure , 400°F and Max 450°F.

Quality Systems

A well-established Quality System from Materials receipt to Products delivery ensures consistent quality at all levels of the activity. QMS Procedures & Measurements are tailored to establish high standards of Quality Assurance in the Operations. The Company maintains the 100% Traceability records as per API requirements &NACE MR 0175-2002 Standards and complies with all the legal, statutory and regulatory requirements.

Training and Field Supports

We have a team of well qualified and experienced field support personnel for Training. According to customer's requirements, we provide operation training service for our customers who purchase our products.

Generally speaking, our customer training mainly includes followings:

1) To know the basic knowledge of the products, such as the usage, the working environments, the working principles, the structure, ect.

2) To learn the operation and use of products.

3) To master the basic requirement of designs of tool strings and of testing operation.

Related products

We also provide accessories and other related products, which you can find in this website.

The following is the pictures about products accessories and some other related products

DST tools 3 7/8Sleeve Type Drain Valve

Product delivery

Payment:TT/LC:30% advance payment.70%before shipment

Delivery: 30 days

Warranty: Warranty period is 1 year after installation.

Origin: China

Minimum order: 1 set

Packaging: wood case or steel carton

Delivery Date: within 1-2 month(s) after receiving prepayment

Logo: KW, we can produce according to customer requirements.

Technical Documents: We can provide technical documents according to your requirements.

Additional service: Customers are served to test our products in our factory upon request.

The followings are some pictures about product packaging


We believe in Customer delight, achieved by the supply of Quality Products & Services and Continual Improvement in our Manufacturing Processes for timely delivery at competitive prices. We work in a professional, competitive, and cost-effective manner consistent with the Customer requirement.
We will offer you a good price and show you our best service.

Category: Drain Valve

Related Category: Shock Absorber  Hydraulic Jar  Rupture Disk Sampler  Tubing String Testing Valve  Gauge Carrier