DST tools 5" RD Safety Circulating Valve
Brand Name:Oiltools
Certification:API, ISO
Model Number:5"
Minimum Order Quantity:1 set
Delivery Time:within 1-2 month(s) after receiving prepayment
Payment Terms:T/T, L/C
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Specifications:
The Rupture Disk (RD) safety circulating valve functions as both a safety valve and circulating valve.
The rupture disk (RD) safety circulating valve functions as both a
safety valve and circulating valve. The tool functions as a safety
valve when the annulus pressure reaches a predetermined value. At
that pressure, the valve isolates the workstring below the tool and
establishes communication between the annulus and the workstring
above the tool. This tool converts into a circulating valve when
the ball valve section is removed.
Features and Benefits:
The tool is composed of three major sections:
• The power section consists of a power mandrel case and rupture
disk that is available for a wide range of pressure applications.
The rupture disk bursts at a predetermined pressure, allowing
annulus pressure to be applied to a differential area on the power
mandrel. The power mandrel moves down, first pushing the ball valve
closed, and then opening a set of circulating ports.
• The circulating section consists of a set of ports that are
initially sealed by the power mandrel. When the rupture disk
bursts, the power mandrel moves down, exposing the ports that allow
communication between the annulus and workstring.
• The safety valve consists of a ball valve, operating pins, and
collet fingers. As the power mandrel moves down, the operating
arms close the ball valve. The collet fingers expand, allowing the
power mandrel to continue traveling down to open the circulating ports.
Nominal Tool Size in. | OD In (mm) | ID In (mm) | Thread Connections | Service Temperature °F(°C) | Length In (cm) | Tensile Rating lb(kg) | Working Pressure Psi (bar) | Flaw Area In2. (cm2) | Number of Ports |
3.00 | 3.06 (7.72) | 1.25 (2.54) | 21/4 CAS | 450 (204) | 60.00 (152.4) | 114,000 (60782) | 15,000 (1034) | 1.23 (7.94) | 4 |
37/8 | 3.90 (9.91) | 1.80 (4.57) | 27/8 CAS | 450 (204) | 70.09 (180.09) | 164,000 (74390) | 15,000 (1034) | 3.14 (20.26) | 4 |
5.00 | 5.03 (12.78) | 2.03 (51.56) | 37/8 CAS | 450 (204) | 68.02 (172.77) | 328 00 (148 781) | 15,000 (1034) | 3.14 (20.26) | 4 |
5.00 SG1 | 5.03 (12.78) | 2.03 (51.56) | 37/8 CAS | 450 (204) | 68.02 (172.77) | 328 00 (148 781) | 15,000 (1034) | 3.14 (20.26) | 4 |
DST tools 5" RD Safety Circulating Valve
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