Fax             706-265-1477

Toll Free     855-457-4474

Text           770-887-0470

Phone         770-887-0470

Air Products Company is a leading distributor, serving this industry for the last 72 years, specializing in the sales and service of the Danfoss Hansen quick disconnect couplings, Graco pumps, sprayers, industrial fluid handling, and Fastest Inc line of leak detection equipment and fittings. 

†These Parts Have exceptionally long lead times and have been marked to be obsoleted

​*With Steel Sleeve

Stainless Steel Sockets Male Pipe Thread

Plugs Male Pipe Thread

†These Parts Have exceptionally long lead times and have been marked to be obsoleted

​

Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Dimensions
Buna-N Seals Viton EPDM Buna-N Seals Viton EPDM Coupling Type Body Size Port Size Thread Type Fig A B Hex A B Hex
(in) (in) (in) (mm) (mm) (mm)
LL1S11 - - - - -- Socket 1/8 1/8 1/8-27 NPT 1 1.06 0.72 0.56 26.9 18.3 14.2
LL1S11BS - - - - - Socket 1/8 1/8 1/8-27 BSPP 1 1.03 0.72 0.56 26.2 18.3 14.2
LL2S16 LL2S16143 LL2S16192† LL2S16SL LL2S16SL143 LL2S16SL192† Socket 1/4 1/4 1/4-18 NPT 1 1.50 0.97 0.81 38.1 24.6 20.6
LL2S16BS LL2S16BS143† LL2S16BS192† - - - Socket 1/4 1/4 1/4-19 BSPP 1 1.50 0.97 0.81 38.1 24.6 20.6
LL3S21 LL3S2143 LL3S21192† LL3S21SL LL3S21143 LL3S21SL192† Socket 3/8 3/8 3/8-18 NPT 1 1.59 1.16 1.00 40.4 29.5 25.4
LL3S21BS LL3S21BS143† LL3S21BS192 - - - Socket 3/8 3/8 3/8-19 BSPP 1 1.59 1.16 1.00 40.4 29.5 25.4
LL4S26 LL4S26143 LL4S26192† LL4S26SL LL4S26SL143† LL4S26SL192† Socket 1/2 1/2 1/2-14 NPT 1 1.91 1.34 1.13 48.5 34.0 28.7
LL4S26BS LL4S26BS143 LL4S26BS192 - - - Socket 1/2 1/2 1/2-14 BSPP 1 1.91 1.34 1.13 48.5 34.0 28.7
LL6S31 LL6S31143 LL6S31192† LL6S31SL LL6S31SL143† - Socket 3/4 3/4 3/4-14 NPT 1 2.06 1.72 1.44 52.3 43.7 36.6
LL6S31BS LL6S31BS143 LL6S31BS192† - - - Socket 3/4 3/4 3/4-14 BSPP 1 2.06 1.72 1.44 52.3 43.7 36.6
LL8S36 LL8S36143 LL8S36192 LL8S36SL LL8S36SL143 - Socket 1 1 1-11-1/2 NPT 1 2.33 2.03 1.75 59.2 51.6 44.5
LL8S36BS - LL8S36BS192 - - - Socket 1 1 1-11 BSPP 1 2.33 2.03 1.75 59.2 51.6 44.5
LL10S41 LL10S41143† LL10S41192† LL10H41SL† - - Socket 1-1/4 1-1/4 1-1/4 - 1-1/2 NPT 1 2.44 2.50 2.00 62.0 36.5 50.8
LL12S46 LL12S46143† LL12S46192† LL12S46SL - - Socket 1-1/2 1-1/2 1-1/2 -1-1/2 NPT 1 2.88 3.13 2.60 73.2 79.5 66.0
LL12S46BS LL12S46BS143† LL12S46BS192 - - - Socket 1-1/2 1-1/2 1-1/2-11 BSPP 1 2.88 3.13 2.63 73.2 79.5 66.8
LL16S51 LL16S51143 LL16S51192† LL16S51SL LL16S51SL143 - Socket 2 2 2-1-1/2 NPT 1 3.09 3.75 3.00 78.5 95.3 76.2
LL16S51BS - LL16S51BS192 - - - Socket 2 2 2-11 BSPP 1 3.30 3.75 3.00 83.8 95.3 76.2
Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Coupling Type Body Size Hose I.D. Fig Dimensions
Brass Viton EPDM A B A B
(in) (in) (mm) (mm)
LL1S12 - - - - - Socket 1/8 3/16 1 1.41 0.72 35.8 18.3
LL1S17 - - - - - Socket 1/8 1/4 1 1.41 0.72 35.8 18.3
LL2S17 LL2S17143† - - - - Socket 1/4 1/4 1 2.10 0.97 53.3 24.6
LL3S22 LL3S22143 - LL3S22SL† - LL3S22SL192† Socket 3/8 3/8 1 2.09 1.16 53.1 29.5
LL4S27 LL4S27143† - LL4S27SL† - LL4S27SL192† Socket 1/2 1/2 1 2.19 1.34 55.6 34.0
LL6S32 LL6S32143† - LL6S32SL - - Socket 3⁄4 3⁄4 1 3.19 1.72 81.0 43.7
LL8S37 LL8S37143 LL8S37192 LL8S32SL† - - Socket 1 1 1 3.32 2.03 84.3 51.6

Plugs Female Pipe Thread

Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Dimensions
Buna-N Seals Viton EPDM Buna-N Seals Viton EPDM Coupling Type Body Size Port Size Thread Type Fig A B Hex A B Hex
(in) (in) (in) (mm) (mm) (mm)
1S10 1S10143† - - - - Socket 1/8 1/8 1/8-27 NPTF 1 1.06 0.72 0.56 26.9 18.3 14.2
1S10BS† - - - - - Socket 1/8 1/8 1/8-28 BSPP 1 1.00 0.72 0.56 25.4 18.3 14.2
2S15 2S15143 2S15192† - - - Socket 1/4 1/4 1/4-18 NPTF 1 1.72 0.97 0.81 43.7 24.6 20.6
3S20 3S20143† - 3S20SL 3S20SL143† - Socket 3/8 3/8 3/8-18 NPTF 1 1.75 1.16 1.00 44.5 29.5 25.4
3S20BS 3S20BS143† - - - - Socket 3/8 3/8 3/8-19 BSPP 1 1.71 1.16 1.00 43.4 29.5 25.4
4S25 4S25143† - 4S25SL 4S25SL143† - Socket 1/2 1/2 1/2-14 NPTF 1 2.03 1.34 1.13 51.6 34.0 28.7
4S25BS - - 4S25BSSL† - - Socket 1/2 1/2 1/2-14 BSPP 1 1.80 1.34 1.13 45.7 34.0 28.7
6S30 - - 6S30SL 6S30SL143 - Socket 3/4 3/4 3/4-14 NPTF 1 2.22 1.72 1.44 56.4 43.7 36.6
6S30BS - 6S30BS192 - - - Socket 3/4 3/4 3/4-14 BSPP 1 2.03 1.72 1.44 51.6 43.7 36.6
8S35 - - 8S35SL 8S35SL143† - Socket 1 1 1-11-1/2 NPTF 1 2.53 2.03 1.75 64.3 51.6 44.5
8S35BS - 8S35BS192 - - - Socket 1 1 1-11 BSPP 1 2.37 2.03 1.75 60.2 51.6 44.5

Stainless Steel Sockets Hose Stem

* For Brass socket and plug. Other materials have 4 to 1 safety factor

** Operating pressure for Non Hazardous liquids and gases from Group 2

*** Operating pressure is same as Non Hazardous liquids and gases from Group 2 for this size 

Dust Caps and Dust Plugs

Stainless Steel Plug Hose Stem

Flow Data

Physical Characteristics

Part Number Coupling Type Body Size Hose I.D. Fig Dimensions
Brass Stainless Steel A B A B
(in) (in) (mm) (mm)
B1T12 LL1T12 — Plug/Male 1/8 3/16 2 1.28 0.44 32.5 11.2
B1T17 LL1T17 — Plug/Male 1/8 1/4 2 1.28 0.44 32.5 11.2
B2T17 LL2T17 — Plug/Male 1/4 1/4 2 1.93 0.56 49.0 14.2
B3T22 LL3T22 — Plug/Male 3/8 3/8 2 2.09 0.69 53.1 17.5
B4T27 LL4T27 — Plug/Male 1/2 1/2 2 2.17 0.88 55.1 22.4
B6T32 LL6T32 — Plug/Male 3⁄4 3⁄4 2 3.17 1.19 80.5 30.2
B8T37 — 8T37 Plug/Male 1 1 2 3.28 1.50 83.3 38.1

• Standard seal material: Nitrile (NBR)

• Standard body material: Brass, 303 stainless steel, steel

Brass Sockets Female Pipe Thread

†These Parts Have exceptionally long lead times and have been marked to be obsoleted

• Ball-latching mechanism

• Smooth bore permits free flow of liquid or gas

• Available in NPTF, BSPP and Hose stem end connections

Part Number Optional Seals Dimensions
Brass Steel Stainless Coupling Type Body Size Port Size Thread Type Fig A B Hex A B Hex
(in) (in) (in) (mm) (mm) (mm)
B1T10 1T10E LL1T10 Plug 1/8 1/8 1/8-27 NPT 2 1.06 0.51 0.44 26.9 13.0 11.2
B1T15 1T15 - Plug 1/8 1/4 1/4-18 NPT 2 1.22 0.65 0.56 31.0 16.5 14.2
B2T15 2T15 LL2T15 Plug 1/4 1/4 1/4-18 NPT 2 1.56 0.65 0.56 39.6 16.5 14.2
- - HL2T15** Plug 1/4 1/4 1/4-18 NPT 2 1.56 0.65 0.56 39.6 16.5 14.2
B2T15BS - LL2T15BS Plug 1/4 1/4 1/4-19 BSPP 2 1.46 0.87 0.75 37.1 22.1 19.1
B3T20 3T20 LL3T20 Plug 3/8 3/8 3/8-18 NPT 2 1.69 0.79 0.69 42.9 21.1 17.5
- - HL3T20** Plug 3/8 3/8 3/8-18 NPT 2 1.69 0.79 0.69 42.9 20.1 17.5
B3T20BS - LL3T20BS** Plug 3/8 3/8 3/8-19 BSPP 2 1.50 1.01 0.88 38.1 25.7 22.4
B4T25 4T25 LL4T25 Plug 1/2 1/2 1/2-14 NPT 2 2.01 1.01 0.88 51.1 25.7 22.4
B4T25BS - LL4T25BS Plug 1/2 1/2 1/2-14 BSPP 2 1.82 1.15 1.00 46.2 29.2 25.4
B6T30 6T30 LL6T30 Plug 3/4 3/4 3/4-14 NPT 2 2.20 1.23 1.06 55.9 31.2 26.9
B6T30BS - LL6T30BS Plug 3/4 3/4 3/4-14 BSPP 2 2.08 1.44 1.25 52.8 36.6 31.8
B8T35 8T35 LL8T35 Plug 1 1 1-11-1/2 NPT 2 2.72 2.02 1.75 69.1 51.3 44.5
B8T35BS - - Plug 1 1 1-11 BSPP 2 2.36 2.02 1.75 59.9 51.3 44.5
B10T40 10T40 LL10T40 Plug 1-1/4 1-1/4 1-1/4 -1-1/2 NPT 2 2.72 2.02 1.75 69.1 51.3 44.5
B10T40BS - - Plug 1-1/4 1-1/4 1-1/4-11 BSPP 2 2.55 2.31 2.00 64.8 58.7 50.8
B12T45 12T45 - Plug 1-1/2 1-1/2 1-1/2-11-1/2 NPT 2 3.31 2.6 2.25 84.1 66.0 57.2
B12T45BS - - Plug 1-1/2 1-1/2 1-1/2-11 BSPP 2 3.06 2.6 2.25 77.7 66.0 57.2
B16T50 16T50 LL16T50 Plug 2 2 2-11-1/2 NPT 2 3.5 3.18 2.75 88.9 80.8 69.9
B20T55 - - Plug 2-1/2 2-1/2 2-1/2-8 NPT 2 4.24 3.75 3.25 107.7 95.3 82.

Fluid Transfer

• Chemical

• Food and Beverage

• Injection Molding

• Marine

• Medical

• Pressure Washing

• Steam Cleaning

Couplings with nominal diameters up to and including 25 mm are designed and manufactured under Article 4.3 of the European Pressure Equipment Directive PED 2014/68/EU. Couplings with nominal diameters greater than 25 mm are designed and manufactured in accordance with the stipulations of Module A of the European Pressure Equipment Directive PED 2014/68/EU. They should not be used to convey unstable gases.

Stainless Steel Sockets Female Pipe Thread 

​​Product Features

†These Parts Have exceptionally long lead times and have been marked to be obsoleted

European Pressure Equipment Directive

Brass Sockets Male Pipe Thread

Applications & Markets

Series Dust Cap Dust Plug
2ST — PSDC1HK
3ST — PSDC2HK
6ST PPDC4HK PSDC4HK
8ST PPDC6HK —
10ST PPDC8HK —

Brass Sockets Hose Stem

Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Coupling Type Body Size Hose I.D. Fig Dimensions
Brass Viton EPDM A B A B
(in) (in) (mm) (mm)
1S12 1S12143† - - - - Socket 1/8 3/16 1 1.41 0.72 35.8 18.3
1S17 1S17143 - - - - Socket 1/8 1/4 1 1.41 0.72 35.8 18.3
2S17 2S17143 - - - - Socket 1/4 1/4 1 2.10 0.97 53.3 24.6
3S22 - - - - - Socket 3/8 3/8 1 2.09 1.16 53.1 29.5
4S27 - 4S27192† 4S27SL† - - Socket 1/2 1/2 1 2.19 1.34 55.6 34.0
6S32 6S32143† 6S32192† 6S32SL 6S32143† - Socket 3⁄4 3⁄4 1 3.19 1.72 81.0 43.7
8S37 - - 8S37SL - - Socket 1 1 1 3.32 2.03 84.3 51.6
Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Dimensions
Buna-N Seals Viton EPDM Buna-N Seals Viton EPDM Coupling Type Body Size Port Size Thread Type Fig A B Hex A B Hex
(in) (in) (in) (mm) (mm) (mm)
1S11 1S11143 1S11192† 1S11SL† - - Socket 1/8 1/8 1/8-27 NPT 1 1.06 0.72 0.56 26.9 18.3 14.2
1S11BS - - - - - Socket 1/8 1/8 1/8-27 BSPP 1 1.03 0.72 0.56 26.2 18.3 14.2
2S16 2S16143 2S16192 2S16SL 2S16SL143† - Socket 1/4 1/4 1/4-18 NPT 1 1.50 0.97 0.81 38.1 24.6 20.6
2S16BS 2S16BS143 2S16BS192 - - - Socket 1/4 1/4 1/4-19 BSPP 1 1.50 0.97 0.81 38.1 24.6 20.6
3S21 3S21143 3S21192† 3S21SL 3S21SL143 - Socket 3/8 3/8 3/8-18 NPT 1 1.59 1.16 1.00 40.4 29.5 25.4
3S21BS 3S21BS143† - 3S21BSSL† - -- Socket 3/8 3/8 3/8-19 BSPP 1 1.59 1.16 1.00 40.4 29.5 25.4
4S26 4S26143 4S26192 4S26SL 4S26SL143 - Socket 1/2 1/2 1/2-14 NPT 1 1.91 1.34 1.13 48.5 34.0 28.7
4S26BS 4S26BS143† 4S26BS192 - - - Socket 1/2 1/2 1/2-14 BSPP 1 1.91 1.34 1.13 48.5 34.0 28.7
6S31 6S31143 6S31192† 6S31SL 6S31SL143 - Socket 3/4 3/4 3/4-14 NPT 1 2.06 1.72 1.44 52.3 43.7 36.6
6S31BS 6S31BS143† 6S31BS192 6S31BSSL† - - Socket 3/4 3/4 3/4-14 BSPP 1 2.06 1.72 1.44 52.3 43.7 36.6
8S36 8S36143 8S36192 8S36SL 8S36SL143† - Socket 1 1 1-11-1/2 NPT 1 2.33 2.03 1.75 59.2 51.6 44.5
8S36BS - 8S36BS192 8S36BSSL† - - Socket 1 1 1-11 BSPP 1 2.33 2.03 1.75 59.2 51.6 44.5
10S41* 10S41143* 10S41192*† 10S41SL*† 10S41SL143*† - Socket 1-1/4 1-1/4 1-1/4 - 1-1/2 NPT 1 2.44 2.50 2.00 62.0 36.5 50.8
10S41BS* - - - - - Socket 1-1/4 1-1/4 1-1/4 -11 BSPP 1 2.51 2.50 2.00 63.8 63.5 50.8
12S46* 12S46143* 12S46192*† 12S46SL*† 12S46SL143*† - Socket 1-1/2 1-1/2 1-1/2 -1-1/2 NPT 1 2.88 3.13 2.60 73.2 79.5 66.0
12S46BS* - - - - - Socket 1-1/2 1-1/2 1-1/2-11 BSPP 1 2.88 3.13 2.63 73.2 79.5 66.8
16S51* - 16S51192*† - - - Socket 2 2 2-1-1/2 NPT 1 3.09 3.75 3.00 78.5 95.3 76.2
16S51BS* - - 16S51BSSL*† - - Socket 2 2 2-11 BSPP 1 3.30 3.75 3.00 83.8 95.3 76.2
20S56* - - - - - Socket 2-1/2 2-1/2 2-1/2 - 8 NPT 1 3.44 4.50 3.50 87.4 114.3 88.9

​**High impulse heat treated 416 stainless steel

Part Number Optional Seals Sleeve Lock Option Part Number Optional Sleeve Lock Seals Dimensions
Buna-N Seals Viton EPDM Buna-N Seals Viton EPDM Coupling Type Body Size Port Size Thread Type Fig A B Hex A B Hex
(in) (in) (in) (mm) (mm) (mm)
LL1S10 LL1S10143 - - - - Socket 1/8 1/8 1/8-27 NPTF 1 1.06 0.72 0.56 26.9 18.3 14.2
LL2S15 LL2S15143 LL2S15192† - - - Socket 1/4 1/4 1/4-18 NPTF 1 1.72 0.97 0.81 43.7 24.6 20.6
LL3S20 LL3S20143 LL3S20192† LL3S20SL† - - Socket 3/8 3/8 3/8-18 NPTF 1 1.75 1.16 1.00 44.5 29.5 25.4
LL3S20BS - - - - - Socket 3/8 3/8 3/8-19 BSPP 1 1.71 1.16 1.00 43.4 29.5 25.4
LL4S25 LL4S25143† - LL4S25SL† - LL4S25SL192 Socket 1/2 1/2 1/2-14 NPTF 1 2.03 1.34 1.13 51.6 34.0 28.7
LL4S25BS - - - - Socket 1/2 1/2 1/2-14 BSPP 1 1.80 1.34 1.13 45.7 34.0 28.7
LL6S30 LL6S30143† LL6S30192† LL6S30SL† LL6S30SL143† - Socket 3/4 3/4 3/4-14 NPTF 1 2.22 1.72 1.44 56.4 43.7 36.6
LL6S30BS - - - - - Socket 3/4 3/4 3/4-14 BSPP 1 2.03 1.72 1.44 51.6 43.7 36.6

​**High impulse heat treated 416 stainless steel

Series Body Size (in) Max. Operating Pressure Brass Socket (bar) Max. Operating Pressure Brass Socket (psi) Max. Operating Pressure Stainless Steel Plug** (bar) Max. Operating Pressure Stainless Steel Plug** (psi) Max. Operating Pressure Hazardous Liquids (bar) Max. Operating Pressure Hazardous Liquids (psi) Min. Burst Pressure* (bar) Min. Burst Pressure* (psi) Rated Flow (lpm) Rated Flow (gpm)
1ST 1/8 193 2,800 234 3,400 290 4,200 *** *** 772 11,200
2ST 1/4 359 5,200 379 5,500 517 7,500 *** *** 1,436 20,800
3ST 3/8 193 2,800 290 4,200 434 6,300 *** *** 772 11,200
4ST 1/2 152 2,200 241 3,500 248 3,600 *** *** 608 8,800
6ST 3/4 117 1,700 145 2,100 207 3,000 *** *** 468 6,800
8ST 1 90 1,300 138 2,000 138 2,000 *** *** 360 5,200
10ST 11/4 117 1,700 186 2,700 152 2,200 *** *** 468 6,800
12ST 11/2 97 1,400 152 2,200 172 2,500 33 480 388 5,600
16ST 2 97 1,400 152 2,200 103 1,500 27 390 388 5,600
20ST 21/2 62 900 103 1,500 — — 20 290 248 3,600
Part Number CouplingType Body Size Port Size Thread Type Fig Dimensions
Brass Steel Stainless C D Hex C D Hex
(in) (in) (in) (mm) (mm) (mm)
B1T11 1T11 LL1T11 Plug 1/8 1/8 1/8 -27 NPTF 2 0.97 0.58 0.50 24.6 14.7 12.7
B1T11BS — LL1T11BS Plug 1/8 1/8 1/8 -28 BSPP 2 0.97 0.65 0.56 24.6 16.5 14.2
B2T16 2T16 LL2T16 Plug 1/4 1/4 1/4-18 NPTF 2 1.45 0.79 0.69 36.8 20.1 17.5
— — HL2T16** Plug 1/4 1/4 1/4-18 NPTF 2 1.45 0.79 0.69 36.8 20.1 17.5
B2T16BS — LL2T16BS Plug 1/4 1/4 1/4-19 BSPP 2 1.45 0.87 0.75 36.8 22.1 19.1
B3T21 3T21 LL3T21 Plug 3/8 3/8 3/8 -18 NPTF 2 1.63 0.94 0.81 41.4 23.9 20.6
— — HL3T21** Plug 3/8 3/8 3/8 -18 NPTF 2 1.63 0.94 0.81 41.4 23.9 20.6
B3T21BS — LL3T21BS Plug 3/8 3/8 3/8 -19 BSPP 2 1.63 1.01 0.88 41.4 25.7 22.4
B4T26 4T26 LL4T26 Plug 1/2 1/2 1/2 -14 NPTF 2 1.92 1.15 1.00 48.8 29.2 25.4
B4T26BS — LL4T26BS Plug 1/2 1/2 1/2 -14 BSPP 2 1.92 1.23 1.06 48.8 31.2 26.9
B6T31 6T31 LL6T31 Plug 3⁄4 3⁄4 3⁄4-14 NPTF 2 2.01 1.37 1.19 51.1 34.8 30.2
B6T31BS — LL6T31BS Plug 3⁄4 3⁄4 3⁄4-14 BSPP 2 2.01 1.51 1.31 51.1 38.4 33.3
B8T36 8T36 LL8T36 Plug 1 1 1-111/2 NPTF 2 2.21 1.8 1.56 56.1 45.7 39.6
B8T36BS — LL8T36BS Plug 1 1 1-11 BSPP 2 2.23 1.8 1.56 56.6 45.7 39.6
B10T41 10T41 LL10T41 Plug 11/4 11/4 11/4 -111/2 NPTF 2 2.34 2.31 2.00 59.4 58.7 50.8
B10T41BS — LL10T41BS Plug 11/4 11/4 11/4 -11 BSPP 2 2.53 2.31 2.00 64.3 58.7 50.8
B12T46 12T46 LL12T46 Plug 11/2 11/2 11/2 -111/2 NPTF 2 2.88 2.6 2.25 73.2 66.0 57.2
B12T46BS — LL12T46BS Plug 11/2 11/2 11/2 -11 BSPP 2 2.88 2.6 2.25 73.2 66.0 57.2
B16T51 16T51 — Plug 2 2 2-111/2 NPTF 2 3.03 3.18 2.75 77.0 80.8 69.9
B16T51BS — — Plug 2 2 2-11 BSPP 2 3.25 3.18 2.75 82.6 80.8 69.9
B20T56 20T56 — Plug 21/2 21/2 2 1/2 -8 NPTF 2 3.37 3.75 3.25 85.6 95.3 82.6

Danfoss Hansen ST Series is a straight-through coupling that is designed for use where minimum pressure drop is required and valving is not needed. These couplings are suited for various and versatile fluid transfer type systems.

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