Underbalanced Drilling Hose Type: UDG-SZ

The underbalanced drilling hose is used for fluid delivery in unbalanced oil drilling. The drilling fluid may also contain nitrogen gas, industrial waste gas, air, the mixed gas of air and nitrogen, natural gas and more.

Features:

Temperature Range: Ⅱ level, -25 ~ 100 ℃

API Standard: 7K-ISO 0106

Fire Protection Requirements:
The normal hose structure satisfies standard SR6A standards and is able to maintain up to 5 minutes in a 704℃ fire. The outer cover can be equipped with a fire insulation layer of a glass fiber cloth, which satisfies SR6B advanced fire protection standards, and maintains up to 30 minutes in a 704℃ fire.

Flexibility Level: FSL3

Maximum Length: 70m

Production Length Tolerance: 6.4m or under ± 64 mm, above 6.4m ± 1％

Construction: Inner Layer: Industrial plastic Tube: Nitrile rubber or HNBR (hydrogenated butadiene-acrylonitrile rubber) with excellent oil and corrosion resistance, thermal insulation, gas permeation protection Reinforcement: High strength fabric cloth Skeleton Layer: High strength steel wire Cover: Chloroprene rubber, fire resistant, abrasive and oil resistant, ozone resistant, UV protection and anti-aging UDG-SZ Technical Parameters:

Code No.		I.D. (inch) (mm)		O.D. (inch) (mm)		Working Pressure (bar) (psi)		Test Pressure (bar) (psi)		Safety Pressure	MBR (Storage) (m)	MBR (Operation) (m)	Weight (Kg/m)	Max. Length (m)
UDG-SZ-51×34.5		2	51	4.17	106	345	5,000	690	10,000	2.5	0.8	0.9	10	70
UDG-SZ-64×34.5		2.5	64	4.6	118	345	5,000	690	10,000	2.5	0.9	1.0	16	70
UDG-SZ-64×51.7		2.5	64	5.35	136	517	7,500	1,034	15,000	2.5	1.0	1.2	23	70
UDG-SZ-76×34.5		3	76	5.28	134	345	5,000	690	10,000	2.5	1.0	1.2	18	70
UDG-SZ-76×51.7		3	76	5.98	152	517	7,500	1,034	15,000	2.5	1.1	1.3	32	70
UDG-SZ-89×34.5		3.5	89	5.75	138	345	5,000	690	10,000	2.5	1.2	1.4	22	70
UDG-SZ-89×51.7		3.5	89	6.57	167	517	7,500	1,034	15,000	2.5	1.3	1.5	37	70
UDG-SZ-102×34.5		4	102	6.8	173	345	5,000	690	10,000	2.5	1.3	1.5	35	70
UDG-SZ-102×51.7		4	102	7.08	168	517	7,500	1,034	15,000	2.5	1.4	1.6	41	70
UDG-SZ-127×34.5		5	127	8.11	206	345	5,000	690	10,000	2.5	1.5	1.6	54	70
UDG-SZ-127×51.7		5	127	8.66	220	517	7,500	1,034	15,000	2.5	1.5	1.7	68	70