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Description

Visual thread standards are manufactured with high speed steel and are created in accordance with the tolerance indicated for each regulation. They are used to check the correspondence between the shape of the standard and the machining thread in the pipe (pin). It is necessary to use them against the light, giving an approximate idea if the machining responds to the indicated lead, taper and thread height measures.
 
CODE
CONNECTION TYPE
300PVR270
2 3/8″ – 3 1/2″ P.A.C CONNECTION 1.5″ TPF – 4 TPI/  V-0.076
300PVR038
3/4″ TPF – 8 TPI CASING, TUBING & DRILL PIPE  INT & EXT
300PVR120
3/4″ TPF – 10 TPI TUBING  INT & EXT
300PVR250
3/4″ TPF – 11 1/2 TPI LINE PIPE  INT & EXT
300PVR200
 BUTTRESS CASING 4 1/2″ – 13 3/8″  3/4″ TPF – 5 TPI  INT
300PVR300
 BUTTRESS CASING 4 1/2″ – 13 3/8″  3/4″ TPF – 5 TPI  EXT
300PVR210
BUTTRESS CASING 16″ – 20″ / 1″ TPF – 5 TPI  INT
300PVR220
BUTTRESS CASING 16″ – 20″ / 1″ TPF – 5 TPI  EXT
300PVR021
2 3/8″- 4 1/2″ REG – 2 7/8″ – 4 1/2″ FH / 3″ TPF – 5 TPI/ V-0.040
300PVR090
6 5/8″ REG – 5 1/2″ & 6 5/8″ FH  2″ TPF – 4 TPI/ V-0.050
300PVR110
5 1/2″ – 7 5/8″ – 8 5/8″ REG  3″ TPF – 4 TPI/ V-0.050
300PVR140
SLIMLINE H-90 2 3/8″ – 3 1/2″  1.25″ TPF – 3 TPI/ 90-V-0.084
300PVR070
HUGHES H-90  7″ – 8 5/8″  3″ TPF – 3.5 TPI/ 90-V-0.050
300PVR190
  IF 2 3/8″ – 6 5/8 ”. NC #23 – #50 – 2″ TPF – 4 TPI/ V-0.038R
300PVR310
 NC #56 – #84 –  3″ TPF – 4 TPI/ V-0.038R
300PVR520
1.5″ TPF – 6 TPI/ V-0.055
300PVR380
 2″ TPF – 4 TPI/ V-0.065
 300PVR390
2″ TPF – 3.5 TPI/ 90-V-0.050