A long-time standard for safety and reliability in the oilfield, TSI Positive Chokes are designed for maximum performance under critical conditions. Use to restrict discharge rate at the tree, the straight bore bean provides a means to efficiently and consistently restrict discharge rate.

Positive Choke Features

  • The straight bore bean provides the means to efficiently and consistently restrict discharge rate
  • The discharge rate can be altered by installing a different size bean
  • Orifice size available in 1/64" increments
  • Positive beans are available in ceramic or tungsten carbide material
  • Convertible to an adjustable choke by exchanging the blanking plug and bean with an adjustable bonnet assembly and seat
TSI positive choke

Positive Choke Parts List

  1. Cap Plugging
  2. Nozzle Body
  3. Union Nut
  4. Body
  5. Choke bean
positive choke cutaway

Positive Choke Dimensions

H. Overall Size

X. Bore centerline to inlet flange face

Y. Bore centerline to outlet flange face

positive choke dimensions

5,000 PSI Positive Choke Specifications

SizeBoreXYHWeight
 inmminmminmminmmlbkg
2-9/16" 2.56 65.1 10.50 267 12.50 318 20.87 530 198 90
3-1/8" 3.13 79.4 10.37 264 11.63 295 20.08 510 243 110
7-1/16" 7.06 179.4 14.25 362 19.37 492 29.13 740 584 265

10,000 PSI Positive Choke Specifications

SizeBoreXYHWeight
 inmminmminmminmmlbkg
2-9/16" 2.56 65.1 10.50 267 12.50 318 20.87 530 198 90
4-1/16" 4.06 103.2 11.88 302 16.00 406 29.53 650 238 108

15,000 PSI Positive Choke Specifications

SizeBoreXYHWeight
 inmminmminmminmmlbkg
2-1/16" 2.06 52.4 8.75 222 10.88 276 27.56 700 216 98