Circle Valve Technologies Inc.
1533 Gehman Road
Harleysville, PA 19438

Toll Free:800-645-6733
Phone: 267-933-6300
Fax: 267-933-6305
Email: [email protected]
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Female NPT to reduced male NPT
Reducing Adapter GABMF
Unit of Measure
1 2 

Item #

Body Material

Connection Size 1

Connection Size 2

Connection Type

Hex (H)

Length (L)

Dim. P1

GABMF2-4N-S N/A Stainless Steel N/A 1/4 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 3/4 in19.05 mm N/A 1.24 in31.5 mm N/A 1/8 in
GABMF2-6N-S N/A Stainless Steel N/A 3/8 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 7/8 in22.2 mm N/A 1.32 in33.5 mm N/A 1/8 in
GABMF4-6N-S N/A Stainless Steel N/A 3/8 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 7/8 in22.2 mm N/A 1.49 in37.8 mm N/A 1/4 in
GABMF2-8N-S N/A Stainless Steel N/A 1/2 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1.57 in40 mm N/A 1/8 in
GABMF4-8N-S N/A Stainless Steel N/A 1/2 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1 3/4 in44.5 mm N/A 1/4 in
GABMF6-8N-S N/A Stainless Steel N/A 1/2 in N/A 3/8 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1 3/4 in44.5 mm N/A 3/8 in
GABMF4-12N-S N/A Stainless Steel N/A 3/4 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 1.80 in45.7 mm N/A 1/4 in
GABMF6-12N-S N/A Stainless Steel N/A 3/4 in N/A 3/8 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 1.80 in45.7 mm N/A 3/8 in
GABMF8-12N-S N/A Stainless Steel N/A 3/4 in N/A 1/2 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 2.01 in51.1 mm N/A 1/2 in
GABMF4-16N-S N/A Stainless Steel N/A 1 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 5/8 in41.2 mm N/A 2 in50.8 mm N/A 1/4 in
GABMF8-16N-S N/A Stainless Steel N/A 1 in N/A 1/2 in N/A Female NPT to reduced male NPT N/A 1 5/8 in41.2 mm N/A 2.16 in54.9 mm N/A 1/2 in
GABMF12-16N-S N/A Stainless Steel N/A 1 in N/A 3/4 in N/A Female NPT to reduced male NPT N/A 1 5/8 in41.2 mm N/A 2.17 in55.1 mm N/A 3/4 in
GABMF2-4N-S-10K-S N/A Stainless Steel N/A 1/4 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 1.00 in25.4 mm N/A 1.27 in32.2 mm N/A 1/8 in
GABMF2-6N-S-10K-S N/A Stainless Steel N/A 3/8 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 1 1/4 in31.75 mm N/A 1.35 in34.2 mm N/A 1/8 in
GABMF4-6N-S-10K-S N/A Stainless Steel N/A 3/8 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 1/4 in31.75 mm N/A 1.52 in38.5 mm N/A 1/4 in
GABMF2-4N-B N/A Brass N/A 1/4 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 3/4 in19.05 mm N/A 1.24 in31.5 mm N/A 1/8 in
GABMF2-6N-B N/A Brass N/A 3/8 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 7/8 in22.2 mm N/A 1.32 in33.5 mm N/A 1/8 in
GABMF4-6N-B N/A Brass N/A 3/8 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 7/8 in22.2 mm N/A 1.49 in37.8 mm N/A 1/4 in
GABMF2-8N-B N/A Brass N/A 1/2 in N/A 1/8 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1.57 in40 mm N/A 1/8 in
GABMF4-8N-B N/A Brass N/A 1/2 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1 3/4 in44.5 mm N/A 1/4 in
GABMF6-8N-B N/A Brass N/A 1/2 in N/A 3/8 in N/A Female NPT to reduced male NPT N/A 1 1/16 in26.9 mm N/A 1 3/4 in44.5 mm N/A 3/8 in
GABMF4-12N-B N/A Brass N/A 3/4 in N/A 1/4 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 1.80 in45.7 mm N/A 1/4 in
GABMF6-12N-B N/A Brass N/A 3/4 in N/A 3/8 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 1.80 in45.7 mm N/A 3/8 in
GABMF8-12N-B N/A Brass N/A 3/4 in N/A 1/2 in N/A Female NPT to reduced male NPT N/A 1 5/16 in33.3 mm N/A 2.01 in51.1 mm N/A 1/2 in
GABMF8-16N-B N/A Brass N/A 1 in N/A 1/2 in N/A Female NPT to reduced male NPT N/A 1 5/8 in41.2 mm N/A 2.16 in54.9 mm N/A 1/2 in
Unit of Measure
1 2