Melfred Borzall® Brand Transmitter Housings
D7x11, D9x13, D10x15
D16x20, D18x22, D20x22, D24x26
D24x40, D33x44, D36x50
D50x100, D80x100
2 1/2” dia. Thread-On Bit Style Housing (Part# 3625-HT)
2 3/4” dia. Thread-On Bit Style Housing (Part# 3627-HT)
3 1/4” dia. Thread-On Bit Style Housing (Part# 3632-HT)
2” IF Box
2” IF Box
2 3/8” (2.375”) API Reg. Box
THREAD CONNECTIONS
BOLT-ON CONNECTIONS
D7x11, D9x13, D10x15
D16x20, D18x22, D24x26, D20x22
2 1/2” dia. 6-Hole Blade Style Housing (Part # 3625-HT-13)
2 3/4” dia. 6-Hole Blade Style Housing (Part # 3627-HT-13)
Virtually All Thread-On Style Transmitter Housings Require 1 of these 5 Pins.
3 Measurements Of Your Housing Can Determine Which Pin You Need.
2 3/8” API Reg. Pin
Small Dia. of Pin = 1 7/8”
Large Dia. of Pin = 2 5/8”
Length of Pin = 3”
Threads per inch = 5
2 7/8” API Reg. Pin
Small Dia. of Pin = 2 1/8”
Large Dia. of Pin = 3”
Length of Pin = 3 1/2”
Threads per inch = 5
3 1/2” API Reg. Pin
Small Dia. of Pin = 2 9/16”
Large Dia. of Pin = 3 1/2”
Length of Pin = 3 3/4”
Threads per inch = 5
D24x40, D33x44, D36x50
3 1/4” dia. 6-Hole Blade Style Housing (Part # 3632-HT-13)
JT520
JT920, JT920L, JT921, JT922, JT1220,
JT1720, JT1720 Mach 1, JT2020
2” dia. 3-Hole Blade Style Housing (Part # 1920-HD-09)
DW - 3-Bolt - (10mm)
2 3/4” dia. 5-Hole Blade Style Housing (Part # 3927-HD-14)
JT2020, JT2720, JT2720 Mach 1
3 1/4” dia. 6-Hole Blade Style Housing (Part # 3932-HD2-15)
2 7/8” (2.875”) API Reg. Box
JT920, JT920L, JT921, JT1220, JT1720, JT2020
2 3/4” dia. Thread-On Bit Style Housing (Part# 3927-HD)
2” IF Box
JT2720, JT2720 Mach 1, JT3020, JT4020
JT4020 Mach 1
3 1/2” dia. 6-Hole Blade Style Housing (Part # 3935-HD-15)
JT2720, JT2720 Mach 1
3 1/4” dia. Thread-On Bit Style Housing (Part# 3932-HD2)
2 3/8” (2.375”) API Reg. Box
JT3020, JT4020, JT 4020 Mach 1
3 1/2” dia. Thread-On Bit Style Housing (Part# 3935-HD)
2 3/8” (2.375”) API Reg. Box
JT7020, JT8020 Mach 1
4 1/4” dia. Thread-On Bit Style Housing (Part# 3942-HU)
2 7/8” (2.875”) API Reg. Box
Rigs From 20,000 - 50,000 lbs. Thrust
3 1/2” dia. End Load Housing (Part# ELH-350)
2 3/8” (2.375”) API Reg. Box
MELFRED BORZALL® HIGH FLOW HOUSINGS
Rigs From 50,000 - 100,000 lbs. Thrust
Rigs From 100,000 - 160,000 lbs. Thrust
Rigs From 1600,000 lbs. & Up Thrust
4 1/4” dia. End Load Housing (Part# ELH-425)
4 7/8” dia. End Load Housing (Part# ELH-487)
6 3/4” dia. End Load Housing (Part# ELH-638)
2 7/8” (2.875”) API Reg. Box
3 1/2” (3.5”) API Reg. Box
4 1/2” (4.5”) API Reg. Box
For Assistance Determining Your Pin Size or Bolt Pattern
PLEASE CONTACT US
FIND YOUR RIG
STEP 1.
FIND YOUR HOUSING
FIND YOUR CONNECTION
STEP 2.
STEP 3.
STEP 4.
USE THE CHART BELOW TO FIND YOUR MELFRED BORZALL® RECOMMENDED TRANSMITTER HOUSING’S REQUIRED PIN OR BOLT CONNECTION FOR ALL DRILLHEAD TOOLS.
NOTE: Use of a crossover sub and other factors may change your required connection. Please verify your required tool joint by using 3 simple measurements (see images below) or feel free to call us any time for connection identification. 580-222-4851
MELFRED BORZALL® BRAND HOUSING IDENTIFICATION
