Fittings, Tubing and Nipples Features• Available in sizes 1/4”, 3/8”, 1/2”, 3/4” and 1”.• NationalPipeThread• 316coldworkedstainlessforfittingsandtubing.• Operatingtemperaturesfrom-400ºFto800º F.• Allitemscanbemanufacturedfromspecialmaterialsuponcustomerrequest.

gpphighpressure.com(417) 673-1919

2

NPT FITTINGS

NPTPART NUMBERING MATRIX

Part Number T-8NPT:TEE15,000 PSI, 1/2”, 316 SST Tee

EXAMPLE

3*Dimensions are subject to change and are considered reference.

gpphighpressure.com(417) 673-1919

4 1/4B BULK HEAD 15,000 6 3/8C COUPLING

8 1/212 3/4

316 SST

16 1

D4 17-4D5 15-5E ELBOW

I INCONEL®NPL NIPPLET TEEX CROSS

CONNECTIONFITTING PRESSURE (psi) Size (inch) Material

BLANK15,00015,00010,00010,000

A

B

D

C

gpphighpressure.com(417) 673-1919

4*Dimensions are subject to change and are considered reference.

FIG.1 FIG. 2 FIG. 3ELBOW TEE CROSS

FITTINGPATTERN

PART NOMINAL PRESSURE RATING MIN. BLOCKNUMBER TUBING OD psi (bar) OPENING A B C D E THICKNESS

DIMENSIONS - INCHES (mm)

E-4NPT

E-6NPT

E-8NPT

E-12NPT

E-16NPT

T-4NPT

T-6NPT

T-8NPT

T-12NPT

T-16NPT

X-4NPT

X-6NPT

X-8NPT

X-12NPT

X-16NPT

1/4 15000 0.250 1.50 1.25 1.00 0.81 0.25 0.75(6.35) (1034.48) (6.35) (38.10) (31.75) (25.40) (20.57) (6.35) (19.05)

3/8 15000 0.375 1.50 1.50 1.00 1.00 0.38 1.00(9.53) (1034.48) (9.53) (38.10) (38.10) (25.40) (25.40) (9.65) (25.40)

1/2 15000 0.500 1.88 1.88 1.25 1.25 0.50 1.25(12.70) (1034.48) (12.70) (47.75) (47.75) (31.75) (31.75) (12.70) (31.75)

3/4 10000 0.750 2.62 2.12 1.31 1.38 0.92 1.50(19.05) (689.66) (19.05) (66.55) (53.85) (33.27) (35.05) (23.37) (38.10)

1 10000 1.000 3.00 2.56 1.69 1.69 0.69 1.75(25.40) (689.66) (25.40) (76.20) (65.02) (42.93) (42.93) (17.53) (44.45)

1/4 15000 0.250 2.00 1.00 0.81 0.00 0.44 0.75(6.35) (1034.48) (6.35) (50.80) (25.40) (20.57) 0.00 (11.18) (19.05)

3/8 15000 0.375 2.00 2.00 1.00 0.38 1.00(9.53) (1034.48) (9.53) (50.80) (50.80) (25.40) 0.00 (9.65) (25.40)

1/2 15000 0.500 2.50 1.25 1.25 0.50 1.25(12.70) (1034.48) (12.70) (63.50) (31.75) (31.75) 0.00 (12.70) (31.75)

3/4 10000 0.750 2.62 1.31 1.38 0.92 1.50(19.05) (689.66) (19.05) (66.55) (33.27) (35.05) 0.00 (23.37) (38.10)

1 10000 1.000 3.38 1.69 1.69 0.69 1.75(25.40) (689.66) (25.40) (85.85) (42.93) (42.93) 0.00 (17.53) (44.45)

1/4 15000 0.250 2.00 2.00 1.00 1.00 0.75

(6.35) (1034.48) (6.35) (50.80) (50.80) (25.40) (25.40) 0.00 (19.05)3/8 15000 0.375 2.00 2.00 1.00 1.00 1.00

(9.53) (1034.48) (9.53) (50.80) (50.80) (25.40) (25.40) 0.00 (25.40)1/2 15000 0.500 2.50 2.50 1.25 1.25 1.25

(12.70) (1034.48) (12.70) (63.50) (63.50) (31.75) (31.75) 0.00 (31.75)3/4 10000 0.750 2.62 2.75 1.31 1.38 1.50

(19.05) (689.66) (19.05) (66.55) (69.85) (33.27) (35.05) 0.00 (38.10)1 10000 1.000 4.12 4.12 2.06 2.06 1.75

(25.40) (689.66) (25.40) (104.65) (104.65) (52.32) (52.32) 0.00 (44.45)

NPT FITTINGSELBOW - TEE - CROSS

A

A

A

D B

C

SECTION A-A

A

B

D

C

A

ASECTION A-A

A

D

C

B

NPT FITTINGSCOUPLING - BULKHEAD - PLUG

5*Dimensions are subject to change and are considered reference.

gpphighpressure.com(417) 673-1919

FITTINGPATTERN

PART NOMINAL PRESSURE RATING MIN.NUMBER TUBING OD psi (bar) OPENING A B

DIMENSIONS - INCHES (mm)

BULK

HEAD

SEE

FIG

. 5

FITTINGPATTERN

PART NOMINAL PRESSURE RATING MIN.NUMBER TUBING OD psi (bar) OPENING A B

DIMENSIONS - INCHES (mm)

COUP

LIN

GSE

E FI

G. 4

C-4NPT 1/4 15000 0.250(6.35) (1034.48) (6.35) 0.00 0.00

C-4NPT-6NPT 1/4 15000 0.250 1 1.38(6.35) (1034.48) (6.35) (25.40) (35.05)

C-4NPT-8NPT 1/4 15000 0.250 1.38 1.62(6.35) (1034.48) (6.35) (35.05) (41.15)

C-6NPT 3/8 15000 0.375(9.53) (1034.48) (9.53) 0.00 0.00

C-6NPT-8NPT 3/8 15000 0.375 1.38 1.63(9.53) (1034.48) (9.53) (35.05) (41.40)

C-8NPT 1/2 15000 0.500(12.70) (1034.48) (12.70) 0.00 0.00

C-8NPT-12NPT 1/2 10000 0.500 1.38 1.75(12.70) (689.66) (12.70) (35.05) (44.45)

C-12NPT 3/4 10000 0.750(19.05) (689.66) (19.05) 0.00 0.00

C-12NPT-16NPT 3/4 10000 0.750 1.75 2.19(19.05) (689.66) (19.05) (44.45) (55.63)

C-16NPT 1 10000 1.000(25.40) (689.66) (25.40) 0.00 0.00

B-4NPT 1/4 15000 0.437 1.00 2.00 0.38(6.35) (1034.48) (11.10) (25.40) (50.80) (9.65)

B-6NPT 3/8 15000 0.578 1.37 2.62 0.50(9.53) (1034.48) (14.68) (34.80) (66.55) (12.70)

B-8NPT 1/2 15000 0.703 1.37 2.62 0.50(12.70) (1034.48) (17.86) (34.80) (66.55) (12.70)

B-12NPT 3/4 10000 0.625 1.88 2.62 0.50(19.05) (689.66) (15.88) (47.75) (66.55) (12.70)

B-16NPT 1 10000 0.687 2.12 3.50 0.50(25.40) (689.66) (17.45) (53.85) (88.90) (12.70)

PANELHOLE - D

PANELTHICKNESS - C

0.94(23.88)

1.25(31.75)

1.25(31.75)

1.69(42.93)

1.94(49.28)

FIG. 4COUPLING

FIG. 6PLUG

FITTINGPATTERN

PART NOMINAL PRESSURE RATINGNUMBER TUBING OD

INCHES (mm) psi (bar)

1/4 15,000(6.35) (1378.95)

3/8 15,000(9.53) (1378.95)1/2 15,000

(12.70) (1378.95)3/4

(19.05) (1378.95)1 15,000

(25.4) (1378.95)

PLU

G

15,000

PLG-4NPT

PLG-6NPT

PLG-8NPT

PLG-12NPT

PLG-16NPT

FITTINGPATTERN

PART NOMINAL PRESSURE RATINGNUMBER TUBING OD

INCHES (mm) psi (bar)

1/4 20,000(6.35) (1378.95)

3/8 20,000(9.53) (1378.95)9/16 20,000

(14.29) (1378.95)3/4

(19.05) (1378.95)1 20,000

(25.4) (1378.95)

COUP

LING

20,000

C-4NPT

C-6NPT

C-9NPT

C-12NPT

C-16NPT

SEE

FIG

. 6

B

B

B

A H

EX

C

D H

EX

E MAX

B

A

FIG.5 BULKHEAD