Choke

Chokes are mainly in threes structures: corbula-type (JFKL), pin-type (JFKZ) and fixed type (JFG). Chokes are mainly used on wellhead equipment, choke manifolds and other high-pressure pipelines; they can also be matched with other devices according to operating conditions and application requirements.

Product Introduction

Specification

Nominal Bore Size	2 1/16", 2 9/16", 3 1/16", 3 1/8", 4 1/16"
Rated Working Pressure	2000 psi, 3000 psi, 5000 psi, 10,000 psi, 15,000 psi
Levels of Product Specification	PSL1 ~ PSL4
Levels of Product Performance	PR1～PR2
Material Level	AA BB CC DD EE FF HH
Temperature Level	－50℉～350℉（L-X）
Working Medium	Oil, Natural Gas, Slurry, Gas Mixed With H2S, CO2

Corbula-type Choke

Structural Characters:
·Valve body and bonnet of chokes are forged and molded with reliable high-intensity and high toughness alloy steels;
·There is decompression valve on the valve body of throttles, so that operators can open the bonnet to release pressure safely;
·Pressure-controller parts are made from hard alloy, the valve cores are designed with pressure balance holes, so that the energy and swirling flow damages are eliminated through multiple pores form multiple directions, and the service life is lengthened and maintenance rate is reduced to a large extent.
·Non-rubber valve stem seals, making safety performance much higher;
·Wide throttle range, low noise and high wear resistance.

Pin-type Choke

Structural Characters:
·Valve body and bonnet of chokes are forged and molded with reliable high-intensity and high toughness alloy steels;
·There is decompression valve on the valve body of choke, so that operators can open the bonnet to release pressure in the cavity safely;
·Hard alloy pressure controller parts have higher wear and corrosion resistance performance and longer service life than pressure controller parts made from normal materials.
·The bonnet is made with special material and in special structure, so that it has high-pressure resistance, reliable sealing performance and long service life;
·Non-rubber valve stem seals, making safety performance much higher;
·Wide throttle range, low noise and high wear resistance.
·Simple structure, making application and maintenance convenient.

Fixed Choke

Structural Characters:
·Valve body and bonnet of chokes are forged and molded with reliable high-intensity and high toughness alloy steels, and have gone through proper thermal treatment. Besides, their strength is tested through water pressure test according to relevant standards before leaving factory in order to ensure their safe and reliable operation under working pressure;
·There is decompression valve on the valve body of choke, so that operators can open the bonnet to release pressure safely;
·Hard alloy pressure controller parts has higher wear and corrosion resistance performance and longer service life than pressure controller parts made from normal materials;
·Simple structure, making application and maintenance convenient.

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+86-15803170119

Rongsheng Machinery Manufacture

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