Crest Diameter and Ovality Gages - MRP® AIR Carbon Fiber

A Stronger, Lighter, and More Accurate MRP® Crest Diameter Gage… the MRP® AIR

Thirty years ago, Gagemaker introduced the MRP® crest diameter and ovality gage which forever changed the industry. Now, we are redefining the industry again. Our MRP® AIR Crest Diameter Carbon Fiber Gage are stronger, lighter, and MORE ACCURATE than ever. Also, no more damaging rails locking them into place.

Immediately detect the slightest variations in crest diameter or ovality with our precision MRP gages, granting you total control over the quality in your work. Whether you call it Crest Diameter, Pitch Diameter, or Ball PD, this thread element governs the strength of the actual thread assembly and ENSURES API dimensional measurement specs are met. Eliminating the need for a room full of ring and plug gages, the MRP AIR Crest Diameter Gage is the ULTIMATE TOOL to inspect a range of diameters and a wide variety of pipe types.

Gagemaker-MRP-AIR-Together

Features & Benefits

• Measure Both External and Internal Parts with One Gage
• Size range of 2⅜” – 20”
• Avoid Damaging Rails with New Block and Clamping Assembly
• Increased Durability with a Stronger and Sturdier Carbon Fiber Frame
• Reduced Weight Significantly
• Minimized Deflection for Increased Accuracy
• Save Time with Easier Gage Setup

MRP® AIR Crest Diameter and Ovality Gages

MRP-AIR-2000 Series Crest Diameter and Ovality Gages - 2⅜” - 20” Casing & Tubing

This MRP® AIR series of gages detect variations in crest diameter (or pitch diameter) by the use of a gage shoe that rests on the crest of the threads. Variation in diameter is detected by the indicator readout. All of these gages are API approved for use on tubing connections sized 1” – 4½” and casing connections sized 2⅜” – 20”. Setting standard or MIC TRAC Setting device required. For the original MRP Series, go here. Additional accessories or model options may be available.

Metric and high resolution indicators are also available.

External/Internal	External Range	Internal Range	Reach	Description	Model
External	2⅜” – 20”	-	4.4”	External Crest Diameter Carbon Fiber Gage, 4.4” reach	MRP-AIR-2001
Internal	-	2⅜” – 20”	4¼”	Internal Crest Diameter Carbon Fiber Gage, 4¼” reach	MRP-AIR-2002
External/Internal	2⅜” – 20”	3½” – 20”	4¼”	Internal/External Crest Diameter Carbon FiberGage, 4¼” reach	MRP-AIR-2003

MRP® Setting Standards

MRP® Rod Style Setting Standards

Rod style setting standards are designed to preset MRP® crest diameter gages for accurate inspection of API threaded connections. Each set of standards consists of two precision ground rods that are ground to lengths in accordance with API Specifications 5B. The rod sets are securely attached together and labeled with the connection size and serial number. The rods set the location of the thread shoe and the distance between shoes for accurate inspection of threaded connections.

MRP® Frame Style Setting Standards

Frame style setting standards are designed to preset the MRP® crest diameter gages for accurate inspection of API threaded connections. These standards consist of a rigid, non-adjustable steel block precision machined to proper size to tolerances of ±.0003″. Round style standards, smaller than 2⅜”, are available as specials (contact us directly for more information).

Tubing Connections Rod & Frame Standards

EUE Connection MRP® Setting Standards

Connection Size	Rod Standard - Box	Rod Standard - Pin	Frame Standard - Box	Frame Standard - Pin
2⅜”	MRP5B-238EUE-B	MRP5B-238EUE-P	FSTD-238E-B2	FSTD-238E-P2
2⅞”	MRP5B-278EUE-B	MRP5B-278EUE-P	FSTD-278E-B2	FSTD-278E-P2
3½”	MRP5B-312EUE-B	MRP5B-312EUE-P	FSTD-312E-B2	FSTD-312E-P2
4”	MRP5B-4EUE-B	MRP5B-4EUE-P	FSTD-4E-B2	FSTD-4E-P2
4½”	MRP5B-412EUE-B	MRP5B-412EUE-P	FSTD-412E-B2	FSTD-412E-P2

NUE Connection MRP® Setting Standards

Connection Size	Rod Standard - Box	Rod Standard - Pin	Frame Standard - Box	Frame Standard - Pin
2⅜”	MRP5B-238NUE-B	MRP5B-238NUE-P	FSTD-238N-B2	FSTD-238N-P2
2⅞”	MRP5B-278NUE-B	MRP5B-278NUE-P	FSTD-278N-B2	FSTD-278N-P2
3½”	MRP5B-312NUE-B	MRP5B-312NUE-P	FSTD-312N-B2	FSTD-312N-P2
4”	MRP5B-4NUE-B	MRP5B-4NUE-P	FSTD-4N-B2	FSTD-4N-P2
4½”	MRP5B-412NUE-B	MRP5B-412NUE-P	FSTD-412N-B2	FSTD-412N-P2

Casing Connections Rod & Frame Standards

Buttress Connection MRP® Setting Standards

Connection Size	Rod Standard - Box	Rod Standard - Pin	Frame Standard - Box	Frame Standard - Pin
4½”	MRP5B-412B-B	MRP5B-412B-P	FSTD-412B-B2	FSTD-412B-P2
5”	MRP5B-5B-B	MRP5B-5B-P	FSTD-5B-B2	FSTD-5B-P2
5½”	MRP5B-512B-B	MRP5B-512B-P	FSTD-512B-B2	FSTD-512B-P2
6⅝”	MRP5B-658B-B	MRP5B-658B-P	FSTD-658B-B2	FSTD-658B-P2
7”	MRP5B-7B-B	MRP5B-7B-P	FSTD-7B-B2	FSTD-7B-P2
7⅝”	MRP5B-758B-B	MRP5B-758B-P	FSTD-758B-B2	FSTD-758B-P2
8⅝”	MRP5B-858B-B	MRP5B-858B-P	FSTD-858B-B2	FSTD-858B-P2
9⅝”	MRP5B-958B-B	MRP5B-958B-P	FSTD-958B-B2	FSTD-958B-P2
10¾”	MRP5B-1034B-B	MRP5B-1034B-P	FSTD-1034B-B2	FSTD-1034B-P2
11¾”	MRP5B-1134B-B	MRP5B-1134B-P	FSTD-1134B-B2	FSTD-1134B-P2
13⅜”	MRP5B-1338B-B	MRP5B-1338B-P	FSTD-1338B-B2	FSTD-1338B-P2
16”	MRP5B-16B-B	MRP5B-16B-P	FSTD-16B-B2	FSTD-16B-P2
18⅝”	MRP5B-1858B-B	MRP5B-1858B-P	FSTD-1858B-B2	FSTD-1858B-P2
20”	MRP5B-20B-B	MRP5B-20B-P	FSTD-20B-B2	FSTD-20B-P2

LTC Connection (8 Round) MRP® Setting Standards

Connection Size	Rod Standard - Box	Rod Standard - Pin	Frame Standard - Box	Frame Standard - Pin
4½”	MRP5B-412L-B	MRP5B-412L-P	FSTD-412L-B2	FSTD-412L-P2
5”	MRP5B-5L-B	MRP5B-5L-P	FSTD-5L-B2	FSTD-5L-P2
5½”	MRP5B-512L-B	MRP5B-512L-P	FSTD-512L-B2	FSTD-512L-P2
6”	MRP5B-6L-B	MRP5B-6L-P	FSTD-6L-B2	FSTD-6L-P2
6⅝”	MRP5B-658L-B	MRP5B-658L-P	FSTD-658L-B2	FSTD-658L-P2
7”	MRP5B-7L-B	MRP5B-7L-P	FSTD-7L-B2	FSTD-7L-P2
7⅝”	MRP5B-758L-B	MRP5B-758L-P	FSTD-758L-B2	FSTD-758L-P2
8⅝”	MRP5B-858L-B	MRP5B-858L-P	FSTD-858L-B2	FSTD-858L-P2
9⅝”	MRP5B-958L-B>P110 or MRP5B-958L-B	MRP5B-958L-P	FSTD-958L-B2>P110 or FSTD-958L-B2	FSTD-958L-P2
20”	MRP5B-20L-B>JK55 or MRP5B-20L-B	MRP5B-20L-P	FSTD-20L-B2>JK55 or FSTD-20L-B2	FSTD-20L-P2

STC Connection (8 Round) MRP® Setting Standards

Connection Size	Rod Standard - Box	Rod Standard - Pin	Frame Standard - Box	Frame Standard - Pin
4½”– 9.50#	MRP5B-412S-9-B	MRP5B-412B-9-P	FSTD-412B-9-B2	FSTD-412B-9-P2
4½” – Other	MRP5B-412S-O-B	MRP5B-412B-O-P	FSTD-412B-O-B2	FSTD-412B-O-P2
5” – 11.50#	MRP5B-5S-B	MRP5B-5S-P	FSTD-5S-B2	FSTD-5S-P2
5” – Other	MRP5B-5S-O-B	MRP5B-5S-O-P	FSTD-5S-O-B2	FSTD-5S-O-P2
5½”	MRP5B-512S-B	MRP5B-512S-P	FSTD-512S-B2	FSTD-512S-P2
6⅝”	MRP5B-658S-B	MRP5B-658S-P	FSTD-658S-B2	FSTD-658S-P2
7” – 17.00#	MRP5B-7S-17-B	MRP5B-7S-17-P	FSTD-7S-17-B2	FSTD-7S-17-P2
7” – Other	MRP5B-7S-O-B	MRP5B-7S-O-P	FSTD-7S-O-B2	FSTD-7S-O-P2
7⅝”	MRP5B-758S-B	MRP5B-758S-P	FSTD-758S-B2	FSTD-758S-P2
7⅝”	MRP5B-758S-B	MRP5B-758S-P	FSTD-758S-B2	FSTD-758S-P2
8⅝” - 24.00#	MRP5B-858S-24-B	MRP5B-858S-24-P	FSTD-858S-24-B2	FSTD-858S-24-P2
8⅝” - Other	MRP5B-858S-O-B	MRP5B-858S-O-P	FSTD-858S-O-B2	FSTD-858S-O-P2
9⅝”	MRP5B-958S-B>P110 or MRP5B-958S-B	MRP5B-958S-P	FSTD-958S-B2>P110 or FSTD-958S-B2	FSTD-958S-P2
10¾” - 32.75#	MRP5B-1034S-32-B	MRP5B-1034S-32-P	FSTD-1034S-32-B2	FSTD-1034S-32-P2
10¾” - Other	MRP5B-1034S-O-B>P110 or MRP5B-1034S-O-B	MRP5B-1034S-O-P	FSTD-1034S-O-B2>P110 or FSTD-1034S-O-B2	FSTD-1034S-O-P2
11¾”	MRP5B-1134S-B>P110 or MR5BP-1134S-B	MRP5B-1134S-P	FSTD-1134S -B2>P110 or FSTD-1134S-B2	FSTD-1134S-P2
13⅜”	MRP5B-1338S-B>P110 or MRP5B-1338S-B	MRP5B-1338S-P	FSTD-1338S-B2>P110 or FSTD-1338S-B2	FSTD-1338S-P2
16”	MRP5B-16S-B	MRP5B-16S-P	FSTD-16S-B2	FSTD-16S-P2
18⅝”	MRP5B-1858S-B	MRP5B-1858S-P	FSTD-1858S-B2	FSTD-1858S-P2
20”	MRP5B-20S-B>JK55 or MRP5B-20S-B	MRP5B-20S-P	FSTD-20S-B2>JK55 or FSTD-20S-B2	FSTD-20S-P2

MRP® Gage Shoes, Accessories and Replacement Parts

MRP® Gage Shoes & Accessories

Part Type	Gage	Length	Description	Model
Shoe	MRP-202	.500”	External Thread Shoe, ½” long for MRP-202	MRP-.500E
Shoe	All MRP® models	.625”	External Thread Shoe, ⅝” long	MRP-.625E
Shoe	All MRP® models	.625”	Internal Thread Shoe, ⅝” long	MRP-.625I
Shoe	All MRP® models	.750”	External Thread Shoe, ¾” long	MRP-.750
Shoe	All MRP® models	.875”	Thread Shoe, ⅞” long	MRP-.875
Shoe	All MRP® models	1.000”	Thread Shoe, 1.00” long	MRP-1.00
Shoe	All MRP® models	1.500”	Thread Shoe, 1.50” long	MRP-1.50
Shoe	All MRP® models	2.250”	Thread Shoe, 2.25” long	MRP-2.25
Shoe	All MRP® models	20 mm	Metric Thread Shoe, 20 mm long	MRP-20mm
Setting Stand	All MRP® models	-	MRP® gage setting stand	MRP-GSS

MRP® Gage Replacement Parts

Part Type	Corresponding Gage(s)	Resolution	Description
Block Set	MRP-1000 Series	MRP-1000 series block set for .375" arms	MRP-10BL
Lower Arm	MRP-1000 Series	MRP-1000 series lower arm, .375" diameter	MRP-10LA
Upper Arm	MRP-1000 Series	MRP-1000 series upper arm, .375" diameter	MRP-10UA
Knob	MRP-1000 Series	MRP-1000 knob, short	MRP-10KB-S
Block Set	MRP-1000 Series	MRP-1000 series block set for 0.5” diameter arms	MRP-10SBL
Knob	MRP-1000 Series	MRP-1000 knob, long	MRP-10KB-L
Spring Plunger	MRP-1000 Series	MRP-1000 series spring plunger	MRP-10SP
Wear Pad Set	MRP-1000 Series	MRP-1000 series wear pad set	MRP-10WP
Lower Arm	MRP-1000 Series	MRP-1000 series lower arm, .5" diameter	MRP-11LA
Upper Arm	MRP-1000 Series	MRP-1000 series upper arm for external/pin connections, .5" diameter	MRP-11UA
Upper Arm	MRP-1000 Series	MRP-1000 series upper arm for internal/box connections, .5" diameter	MRP-12UA
Block Set	MRP-2000 Series	MRP-2000 series block set	MRP-20BL
Arm Clamp	MRP-2000 Series	MRP-2000 series arm clamp	MRP-20BL
Spring Plunger	MRP-2000 Series	MRP-2000 series spring plunger	MRP-20SP
Knob	MRP-2000 Series	MRP-2000 series knob	MRP-20KB
Wear Pad Set	MRP-2000 Series	MRP-2000 wear pad set	MRP-20WP
Wear Pad Set	MRP-2000 Series	MRP-2000 extended wear pad set	MRP-20WPEX
Rail	MRP-2000 Series	MRP-2000 series 12" cross rail	MRP-RAIL-12
Rail	MRP-2000 Series	MRP-2000 series 18" cross rail	MRP-RAIL-18
Rail	MRP-2000 Series	MRP-2000 series 24" cross rail	MRP-RAIL-24
Wear Pad Set	MRP-3000 Series	MRP-3000 wear pad set	MRP-30WP
Wear Pad Set	MRP-3000 Series	MRP-3000 extended wear pad set	MRP-30WPEX

Crest Diameter and Ovality Gages – MRP® AIR Carbon Fiber