- Model NO.: api 16C
- Power Source: Hydraulic
- Applicable Medium: Mud, Water, Natural Gas, Crude Oil
- Material: Alloy
- Size: 4-1/16"
- Pr: 1
- Transport Package: Wooden Case Box
- Origin: China
- Certification: ISO 9001:2000
- Operation Pressure: Atmospheric Pressure
- Structure: Horizontal
- S: API 16c
- Tc: PU
- Trademark: JELIN
- Specification: API 16C
- HS Code: 84314310
Choke manifold is a necessary device for controlling well kick and implementing oil-gas well pressure control. When blowout preventer is closed, choke valve can be turned on and off to control certain casing pressures to keep bottom hole pressure a little higher than formation pressure all the time, lest formation fluid should further flow into well. Besides, when well is shut off, choke manifold can be relieved for the realization of soft shut-in. When the pressure rises to a certain level, it can be used to open the well for gushing so as to protect the well.
Choke manifold is composed of choke valve, gate valve, pipeline, pipe fittings and pressure gage, etc.
When well pressure rises, the choke valve (it falls into three kinds: Manually adjustable, hydraulic and positive) on choke manifold can be turned on and off to release the fluid to control casing pressure. Gate valve can be used for direct blowout. When casing pressure is pretty high,
The pressure class of our company's chokes manifold falls into five class: 14MPa, 21MPa, 35MPa, 70MPa and 105MPa. Also, we can design according to customer demand.
| Name | Choke manifold | Kill manifold | |||||
| Model | JG/S2-35 | JG/SY-35 | JG/SY2-70 | JG/S2Y2-105 | YG-35 | Y-70 | YG-105 |
| Main diameter and sideward diameter | 31/8× 21/16(80× 52)  41/16× 29/16(103× 65)  41/16× 31/16(103× 78) | ||||||
|  psi(MPa) Working pressure psi (MPa) |
3000(21) 5000(35) |
3000(21) 10000(70) |
5000(35) | 10000(70) | 15000(105) | ||
| (° F) Working temperature  º C (° F) |
LU  -46º C ~ +121º C    (-50° F ~ 250° F) | ||||||
| Working mediums | Drilling fluid,  mud and petroleum (with sulfuretted hydrogen) | ||||||
| Control type | Two-winged manual choke valve | Two-winged  hydraulic manual choke valve | Three-winged hydraulic manual choke valve | Four-winged double-hydraulic manual choke valve | Two-winged main relief valve | ||
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