Well testing DST Super Safety Valve

Model: Super safety valve -SSV
Place of Origin: Shaanxi,China (Mainland)
Working pressure: 105Mpa
Working temperature: 400F
H2s: NACE MR0175
Material: Inconel 718
Type: Surface control
Size: 8"
Condition: New
Service: Full H2S
Application: Drill stem testing operation
Working condition: High pressure high temperature
Special Groups: Case hole DST
DST Super safety valve
DST Tester valve
drill stem testing SSV
drill stem testing
super safety valve
safety valve control system


skype basketAdd to Basket  Edit

Share |

Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:100.0 USDProduction Capacity:1set/month
Trade Term:FOB,CFRPacking:plywood
Payment Terms:L/C, T/TDelivery Date:90days
Min. Order:1 Set/Sets
Means of Transport:Ocean, Air, Land

Well testing  DST Super Safety Valve

Sub-surface control downhole super safety valve 8"

The Safety valve normally run inside or below a BOP and is used to control well flow.

The valve is controlled by two hydraulic lines and contains a chemical injection port. Designed to close by spring force but has a nirogen charge chamber to quicken the closing time which gives the valve the ability to cut wireline and coiled tubing without the additon of balance line pressure. The valve is held open by maintaining hydraulic control on the control ine. The nitrogen charge chamber and the balance line chamber are the same chamber.The nitrogen pressure acts directly on the operating piston and a floating check valve keeps the nitrogen from escaping from the chamber into the balance line.The check valve floats on the surface of the hydrulic fluid as fluid is pumped into the chamber. when the fluid is removed, the floating check valve sets down on the seat and seals the nitrogen charge in the chamber.


Design Specifications


8.00 in. (203.20 mm)


3.00 in. (76.20 mm)

Makeup Length

135.36 in. (34320.25px)


(Top) 5-3/4 in. 4-stub Acme Box by

(Bottom) 5-in. 4-stub Acme Box

Rated Working Pressure

15,000 psi

Service Temperature

0 to 350ºF (-18 to 177ºC)

Service Environment

All Temperature Sour Service


Coiled Tubing cut off in Testing

Control Panel System


The Material for SSV can be Inconel for high pressure, high temperature and strict downhole condition, H2S,HCL,CO2.

The AISI4140 material also can be available for normal testing service.

Well testing  DST Super Safety Valve

Sub-surface control downhole super safety valve 8"

Category: Super Safety valve DST tools

Related Category: Gauge Carrier DST  Rupture Disc Sampler DST  well testing safety valve  Cased hole drill stem testing tools  Open hole drill stem testing tools 

QR Code