Choke and Kill Hoses

API Spec 16C Flexible Hose Assemblies for Oilfield Drilling Applications

Choke and kill hoses are generally used to connect kill manifolds or choke manifolds with drilling spools and connect mud tanks with accumulators on oil rigs or drilling ships, in order to deliver oil, gas, mud and other high-pressure media.

Features The reinforcement layer of the drilling hose adopts imported high-strength steel wires. The hose’s inner rubber layer adopts imported rubber and our company’s special formula, and can withstand high-speed flows of oil- or water-based mud as well as extreme weathers. The formula can be adjusted based on transported media. The flexible line can work for 30 minutes under the rated pressure and in 704℃ fire. Flange joints at the hose end adopt anti-corrosively and thermally treated 45K/60K/75K materials. The joints are swivel-type and forged with our company’s patented technology. With identical bore diameters, the couplings can be connected to the tube without leading to choked and eddy flows and cut loss. The drilling hose is sheathed in stainless steel, anticorrosive and antistatic.

Media Delivered: oil- and water-based mud and fluids containing H2S
Tube Colors: black, orange and tangerine
Standard: API Spec 16C
Operating Temperatures: -29℃～ 121℃

Technical Parameters

Nominal Diametermm(in)	Test Pressure (psi) MPa				Min. Burst Pressure (psi) MPa				Inner Diameterd1mm	Bore DiameterD2 mm		Casing Drift Diameter mm	Connection
	34.5MPa/50OOPsi	69MPa/10000Psi	103.5MPa/15000Psi	138MPa/2000OPsi	34.5MPa/5000Psi	69MPa/1000OPsi	103.5MPa/1500OPsi	138MPa/2000OPsi		oD2min	oD2
51(2)	51.7( 7500)	103.5(15000)	155(22500)	207( 30000)	77.6(11250)	155(22500)	233(33750)	310(45000)	51±0.2	49	d1	49-0.1	Flange
63(2 1/2)	51.7 (7500)	103.5( 15000)	155(22500)	207( 30000)	77.6(11250)	155(22500)	233(33750)	310(45000)	63±02	61	d1	61-0.1	Flange
76(3)	51.7(7500)	103.5( 15000)	155(22500)	207( 30000)	77.6(11250)	155(22500)	233(33750)	310(45000)	76±0.2	74	d1	74-0.1	Flange
102(4)	51.7(7500)	103.5(15000 )	155(22500)	207( 30000)	77.6(11250)	155(22500)	233(33750)	310(45000)	102±0.2	100	d1	100-0.1	Flange
127(5)	51.7.(7500)	103.5.( 15000 )	155(22500)	207.(30000)	77.6( 11250)	155(22500)	233(33750)	310(45000)	127±0.3	125	d1	125-0.1	Flange