KOSHZ Dart valve for drill string with the locking thread

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KOSHZ Dart valve for drill string with the locking thread

KOSHZ Dart valve for drill string with the locking thread (equivalent: KOB) is intended for automatic overlap and pressurization of the drilling instrument tube channel in drilling oil and gas wells, and also in maintenance and emergency works.

TS 3742-003-79560377-2009

Check valve structure allows carrying out maintenance works under field conditions. The valves are produced with the right and left directed coupling thread coils.

Table 1

Name	KOSHZ-73R1	KOSHZ-76R1	KOSHZ-86R1	KOSHZ-88R1
Equivalent	KOB-86R1	KOB-95R1	KOB-108R1	KOB-108R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	500 (50)	500 (50)	1000 (100)	1200 (120)
Weight	11 lbs / 5 kg	15.4 lbs / 7 kg	28.7 lbs / 13 kg	33 lbs / 15 kg
Length	9 7/8"/ 250 mm	10 4/5"/ 275 mm	12 2/5"/ 310 mm	12 4/5"/ 325 mm
External diameter	3 6/16"/ 86 mm	3 3/4"/ 95 mm	4 1/4"/ 108 mm	4 1/4"/ 108 mm
Nominal drift diameter	1 3/16"/ 30 mm	1 1/2"/ 38 mm	1 9/16"/ 39 mm	1 1/4"/ 32 mm
Coupling thread, API 7	NC 26	2 ⁷/₈ Reg	NC 31	3 ½ Reg
Thread profile form, API 7	IV	I	IV	I
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

Table 2

Name	KOSHZ-102R1	KOSHZ-108R1	KOSHZ-117R1	KOSHZ-121R1	KOSHZ-122R1	KOSHZ-133R1	KOSHZ-147R1	KOSHZ-152R1
Equivalent	KOB-120R1	KOB-133R1	KOB-140R1	KOB-146R1	KOB-146R1	KOB-155R1	KOB-178R1	KOB-197R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1400 (140)	1600 (160)	1800 (180)	2100 (210)	2200 (220)	2500 (250)	2600 (260)	4000 (400)
Weight	35.3 lbs / 16 kg	37.5 lbs / 17 kg	39.7 lbs / 18 kg	44 lbs / 20 kg	44 lbs / 20 kg	72.8 lbs / 33 kg	114.6 lbs / 52 kg	132.3 lbs / 60 kg
Length	14 1/5"/ 360 mm	15 3/5"/ 395 mm	15 3/4"/ 400 mm	15 3/4"/ 400 mm	16 1/8"/ 410 mm	16 3/8"/ 415 mm	18 1/4"/ 465 mm	19 5/8"/ 500 mm
External diameter	4 3/4"/ 120 mm	5 1/4"/ 133 mm	5 1/2"/ 140 mm	5 3/4"/ 146 mm	5 3/4"/ 146 mm	6 1/8"/ 155 mm	7"/ 178 mm	7 3/4"/ 197 mm
Nominal drift diameter	2 1/16"/ 52 mm	2 1/16"/ 52 mm	2 1/16"/ 52 mm	2 5/16"/ 58 mm	2 5/16"/ 58 mm	2 1/2"/ 64 mm	2 7/8"/ 73 mm	2 15/16"/ 75 mm
Coupling thread, API 7	NC 38	NC 40	4 ½ Reg	4 ½ FH	NC 46	NC 50	5 ½ FH	6 ⁵/₈ Reg
Thread profile form, API 7	IV	IV	I	I	IV	IV	III	III
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

Choose typical size

KOSHZ-73R1
Equivalent: KOB-86R1

KOSHZ-76R1
Equivalent: KOB-95R1

KOSHZ-86R1
Equivalent: KOB-108R1

KOSHZ-88R1
Equivalent: KOB-108R1

KOSHZ-102R1
Equivalent: KOB-120R1

KOSHZ-108R1
Equivalent: KOB-133R1

KOSHZ-117R1
Equivalent: KOB-140R1

KOSHZ-121R1
Equivalent: KOB-146R1

KOSHZ-122R1
Equivalent: KOB-146R1

KOSHZ-133R1
Equivalent: KOB-155R1

KOSHZ-147R1
Equivalent: KOB-178R1

KOSHZ-152R1
Equivalent: KOB-197R1

KOSHZ-73R1
Equivalent	KOB-86R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	500 (50)
Масса	11 lbs / 5 kg
Length	9 7/8"/ 250 mm
External diameter	3 6/16"/ 86 mm
Nominal drift diameter	1 3/16"/ 30 mm
Coupling thread, API 7	NC 26
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-76R1
Equivalent	KOB-95R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	500 (50)
Масса	15.4 lbs / 7 kg
Length	10 4/5"/ 275 mm
External diameter	3 3/4"/ 95 mm
Nominal drift diameter	1 1/2"/ 38 mm
Coupling thread, API 7	2 ⁷/₈ Reg
Thread profile form, API 7	I
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-86R1
Equivalent	KOB-108R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1000 (100)
Масса	28.7 lbs / 13 kg
Length	12 2/5"/ 310 mm
External diameter	4 1/4"/ 108 mm
Nominal drift diameter	1 9/16"/ 39 mm
Coupling thread, API 7	NC 31
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-88R1
Equivalent	KOB-108R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1200 (120)
Масса	33 lbs / 15 kg
Length	12 4/5"/ 325 mm
External diameter	4 1/4"/ 108 mm
Nominal drift diameter	1 1/4"/ 32 mm
Coupling thread, API 7	3 ½ Reg
Thread profile form, API 7	I
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-102R1
Equivalent	KOB-120R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1400 (140)
Масса	35.3 lbs / 16 kg
Length	14 1/5"/ 360 mm
External diameter	4 3/4"/ 120 mm
Nominal drift diameter	2 1/16"/ 52 mm
Coupling thread, API 7	NC 38
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-108R1
Equivalent	KOB-133R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1600 (160)
Масса	37.5 lbs / 17 kg
Length	15 3/5"/ 395 mm
External diameter	5 1/4"/ 133 mm
Nominal drift diameter	2 1/16"/ 52 mm
Coupling thread, API 7	NC 40
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-117R1
Equivalent	KOB-140R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	1800 (180)
Масса	39.7 lbs / 18 kg
Length	15 3/4"/ 400 mm
External diameter	5 1/2"/ 140 mm
Nominal drift diameter	2 1/16"/ 52 mm
Coupling thread, API 7	4 ½ Reg
Thread profile form, API 7	I
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-121R1
Equivalent	KOB-146R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	2100 (210)
Масса	44 lbs / 20 kg
Length	15 3/4"/ 400 mm
External diameter	5 3/4"/ 146 mm
Nominal drift diameter	2 5/16"/ 58 mm
Coupling thread, API 7	4 ½ FH
Thread profile form, API 7	I
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-122R1
Equivalent	KOB-146R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	2200 (220)
Масса	44 lbs / 20 kg
Length	16 1/8"/ 410 mm
External diameter	5 3/4"/ 146 mm
Nominal drift diameter	2 5/16"/ 58 mm
Coupling thread, API 7	NC 46
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-133R1
Equivalent	KOB-155R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	2500 (250)
Масса	72.8 lbs / 33 kg
Length	16 3/8"/ 415 mm
External diameter	6 1/8"/ 155 mm
Nominal drift diameter	2 1/2"/ 64 mm
Coupling thread, API 7	NC 50
Thread profile form, API 7	IV
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-147R1
Equivalent	KOB-178R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	2600 (260)
Масса	114.6 lbs / 52 kg
Length	18 1/4"/ 465 mm
External diameter	7"/ 178 mm
Nominal drift diameter	2 7/8"/ 73 mm
Coupling thread, API 7	5 ½ FH
Thread profile form, API 7	III
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas

KOSHZ-152R1
Equivalent	KOB-197R1
Working pressure, PSI (atm)	from 5000 (350) to 15000 (1050)
Cargo capacity kN (tf)	4000 (400)
Масса	132.3 lbs / 60 kg
Length	19 5/8"/ 500 mm
External diameter	7 3/4"/ 197 mm
Nominal drift diameter	2 15/16"/ 75 mm
Coupling thread, API 7	6 ⁵/₈ Reg
Thread profile form, API 7	III
Ambient temperature, °С:	from -40 to +100
Handling medium:	drill and grouting slurry, oil, gas