DMD Series Subsurface Safety Valve Made in China

• Customization: Available
• After-sales Service: 18mths
• Warranty: 18mths
• Model NO.: DMD
• Certification: ISO 9001:2008
• Power Source: Hydraulic
• Operation Pressure: Atmospheric Pressure
• Applicable Medium: Mud, Water, Natural Gas, Crude Oil
• Structure: Vertical
• Material: Cast Steel
• Lead Time: 30days
• Supply: 80sets/Mth
• Pkg: Wooden Box
• Standard: API
• Transport Package: Wooden Export Package
• Specification: standard
• Trademark: EXTRONG
• Origin: China
• HS Code: 8431432000
• Production Capacity: 5000 Nos/Year

Product Description

DMD SERIES SUBSURFACE SAFETY VALVE

INTRODUCTION
Various kinds of new technology are applied in DMD series surface controlled
subsurface safety valves and perform very well in field applications, reducing
significantly common safety valve failures.
DMD series surface controlled subsurface safety valve is with flapper structure to
protect wireline from damages, non-elastomeric sealing technology and
metal-to-metal sealing and containment of wellbore fluids when the valve is in the
closed position.
25% safety valve failures are due to wireline damages in workover operation.
DMD series surface controlled subsurface safety valves involve the flapper design
for protection of wireline from damages and this design is so successful that it can
virtually eliminate such failure mode. This design ensures all seal surfaces are
protected from wireline contact even during accidental closure of the valve during
wireline operations.
DMD series surface controlled subsurface safety valves can be customized
according to specific needs, with available options such as integral chemical
injection capability, wireline damage resistant seal bores, and various control
system stop seal versions.
FEATURES
• Self-equalizing function of flapper
• Non-elastomeric dynamic seal assembly
• Wireline damage resistant flapper - design protects sealing integrity during
wireline operations.
• Metal-to-metal seal technology - 100% metal-to-metal sealing and
containment of wellbore fluids when the valve is in the closed position.
• Optional chemical injection capability - injection mandrel within the TRSV
eliminates the need for a mandrel above the valve and allows injection of
fluids directly into spring cavity for maximum effectiveness.

DMD SERIES SUBSURFACE SAFETY VALVE SPECIFICATIONS 
 

Size	Max OD	Max Seal Bore	Working Pressure	Setting Depth		Max Temp.
In.	in/mm	in.	psi	ft	m	ºF	ºC
2-3/8	3.625/92	1.875	5,000	1300	396	300	149
	3.625/92		10,000
	3.5/88.9		9,000
2-7/8	4.51/114.55	2.313	5,000	1,500	457	300	149
			10,000
3-1/2	5.185/131.7	2.813	5000	1,500	457	300	149
	5.30/134.60	2.75
	5.65/143.5	2.562	10,000
4-1/2	5.985/152	3.813	8,500	2,200	670	300	149
	6.5/165.1	3.75	5,000	1500	457
	7.403/188.00	3.688	10,000
5-1/2	7.73/196.30	4.75	5,000	1500	457	300	149
	8.0/203.2	4.562	8,000
	8.25/209.60	4.313	10,000
7	8.375/212.70	6.15/6/5.813	5,000	2000	609	300	149
	9.2/233.60		10,000