| Product Features: |
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| European Pressure Equipment Directive: |
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| Series | Body Size | Max. Operating Pressure Brass Socket & Plug** | Max. Operating Pressure Brass Socket & Steel Plug** | Max. Operating Pressure Stainless Socket & Plug** | Max. Operating Pressure Hazardous Liquids and Gases Group 1 | Min. Burst Pressure* | Rated Flow | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bar | psi | bar | psi | bar | psi | bar | psi | bar | psi | ||||
| 1ST | 1/8″ | 193 bar | 2,800 psi | 234 bar | 3,400 psi | 290 bar | 4,200 psi | *** bar | *** psi | 772 bar | 11,200 psi | 10 lpm | 2.7 gpm |
| 2ST | 1/4″ | 359 bar | 5,200 psi | 379 bar | 5,500 psi | 517 bar | 7,500 psi | *** bar | *** psi | 1,436 bar | 20,800 psi | 21 lpm | 5.6 gpm |
| 3ST | 3/8″ | 193 bar | 2,800 psi | 290 bar | 4,200 psi | 434 bar | 6,300 psi | *** bar | *** psi | 772 bar | 11,200 psi | 57 lpm | 15 gpm |
| 4ST | 1/2″ | 152 bar | 2,200 psi | 241 bar | 3,500 psi | 248 bar | 3,600 psi | *** bar | *** psi | 608 bar | 8,800 psi | 83 lpm | 22 gpm |
| 6ST | 3/4″ | 117 bar | 1,700 psi | 145 bar | 2,100 psi | 207 bar | 3,000 psi | *** bar | *** psi | 468 bar | 6,800 psi | 250 lpm | 66 gpm |
| 8ST | 1″ | 90 bar | 1,300 psi | 138 bar | 2,000 psi | 138 bar | 2,000 psi | *** bar | *** psi | 360 bar | 5,200 psi | 530 lpm | 140 gpm |
| 10ST | 1-1/4″ | 117 bar | 1,700 psi | 186 bar | 2,700 psi | 152 bar | 2,200 psi | *** bar | *** psi | 468 bar | 6,800 psi | 697 lpm | 184 gpm |
| 12ST | 1-1/2″ | 97 bar | 1,400 psi | 152 bar | 2,200 psi | 172 bar | 2,500 psi | 33 bar | 480 psi | 388 bar | 5,600 psi | 1,124 lpm | 297 gpm |
| 16ST | 2″ | 97 bar | 1,400 psi | 152 bar | 2,200 psi | 103 bar | 1,500 psi | 27 bar | 390 psi | 388 bar | 5,600 psi | 1,855 lpm | 490 gpm |
| 20ST | 2-1/2″ | 62 bar | 900 psi | 103 bar | 1,500 psi | – | – | 20 bar | 290 psi | 248 bar | 3,600 psi | 3,131 lpm | 827 gpm |
*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
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Socket/Female (Figure 1) |
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| ST Series | Sockets | Male Threaded Ends | |||||||||
| Brass Part Number |
303 Stainless Steel Part Number |
Body Size | Type | Port Size | Male Thread |
Figure | Dimensions | ||
| NBR Seal | NBR Seal | A | B | Hex | |||||
| 1S10 | LL1S10 | 1/8″ | Socket/Female | 1/8″ | 1/8-27 Male NPTF | 1 | 1.06″ (26.9mm) |
0.72″ (18.3mm) |
0.56″ (14.2mm) |
| 2S15 | LL2S15 | 1/4″ | Socket/Female | 1/4″ | 1/4-18 Male NPTF | 1 | 1.72″ (43.7mm) |
0.97″ (24.6mm) |
0.81″ (20.6mm) |
| 3S20 | LL3S20 | 3/8″ | Socket/Female | 3/8″ | 3/8-18 Male NPTF | 1 | 1.75″ (44.5mm) |
1.16″ (29.5mm) |
1.00″ (25.4mm) |
| 3S20BS | LL3S20BS | 3/8″ | Socket/Female | 3/8″ | 3/8-19 Male BSPP | 1 | 1.71″ (43.4mm) |
1.16″ (29.5mm) |
1.00″ (25.4mm) |
| 4S25 | LL4S25 | 1/2″ | Socket/Female | 1/2″ | 1/2-14 Male NPTF | 1 | 2.03″ (51.6mm) |
1.34″ (34.0mm) |
1.13″ (28.7mm) |
| 4S25BS | – | 1/2″ | Socket/Female | 1/2″ | 1/2-14 Male BSPP | 1 | 1.80″ (45.7mm) |
1.34″ (34.0mm) |
1.13″ (28.7mm) |
| 6S30 | LL6S30 | 3/4″ | Socket/Female | 3/4″ | 3/4-14 Male NPTF | 1 | 2.22″ (56.4mm) |
1.72″ (43.7mm) |
1.44″ (36.6mm) |
| 6S30BS | – | 3/4″ | Socket/Female | 3/4″ | 3/4-14 Male BSPP | 1 | 2.03″ (51.6mm) |
1.72″ (43.7mm) |
1.44″ (36.6mm) |
| 8S35 | – | 1″ | Socket/Female | 1″ | 1-11-1/2 Male NPTF | 1 | 2.53″ (64.3mm) |
2.03″ (51.6mm) |
1.75″ (44.5mm) |
| 8S35BS | – | 1″ | Socket/Female | 1″ | 1-11 Male BSPP | 1 | 2.37″ (60.2mm) |
2.03″ (51.6mm) |
1.75″ (44.5mm) |
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|---|---|---|---|---|---|---|---|---|---|---|
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Plug/Male (Figure 2) |
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| ST Series | Plugs | Male Threaded Ends | ||||||||||
| Brass Part Number |
Steel Part Number |
303 Stainless Steel Part Number |
Body Size | Type | Port Size | Male Thread |
Figure | Dimensions | ||
| NBR Seal | NBR Seal | NBR Seal | C | D | Hex | |||||
| B1T10 | 1T10E | LL1T10 | 1/8″ | Plug/Male | 1/8″ | 1/8-27 Male NPTF | 2 | 1.06″ (26.9mm) |
0.51″ (13.0mm) |
0.44″ (11.2mm) |
| B1T15 | 1T15 | – | 1/8″ | Plug/Male | 1/4″ | 1/4-18 Male NPTF | 2 | 1.22″ (31.0mm) |
0.65″ (16.5mm) |
0.56″ (14.2mm) |
| B2T15 | 2T15 | LL2T15 | 1/4″ | Plug/Male | 1/4″ | 1/4-18 Male NPTF | 2 | 1.56″ (39.6mm) |
0.65″ (16.5mm) |
0.56″ (14.2mm) |
| – | – | HL2T15** | 1/4″ | Plug/Male | 1/4″ | 1/4-18 Male NPTF | 2 | 1.56″ (39.6mm) |
0.65″ (16.5mm) |
0.56″ (14.2mm) |
| – | – | LL2T15BS | 1/4″ | Plug/Male | 1/4″ | 1/4-19 Male BSPP | 2 | 1.46″ (37.1mm) |
0.87″ (22.1mm) |
0.75″ (19.1mm) |
| B3T20 | 3T20 | LL3T20 | 3/8″ | Plug/Male | 3/8″ | 3/8-18 Male NPTF | 2 | 1.69″ (42.9mm) |
0.79″ (20.1mm) |
0.69″ (17.5mm) |
| – | – | HL3T20** | 3/8″ | Plug/Male | 3/8″ | 3/8-18 Male NPTF | 2 | 1.69″ (42.9mm) |
0.79″ (20.1mm) |
0.69″ (17.5mm) |
| B3T20BS | – | LL3T20BS | 3/8″ | Plug/Male | 3/8″ | 3/8-19 Male BSPP | 2 | 1.50″ (38.1mm) |
1.01″ (25.7mm) |
0.88″ (22.4mm) |
| B4T25 | 4T25 | LL4T25 | 1/2″ | Plug/Male | 1/2″ | 1/2-14 Male NPTF | 2 | 2.01″ (51.1mm) |
1.01″ (25.7mm) |
0.88″ (22.4mm) |
| B4T25BS | – | LL4T25BS | 1/2″ | Plug/Male | 1/2″ | 1/2-14 Male BSPP | 2 | 1.82″ (46.2mm) |
1.15″ (29.2mm) |
1.00″ (25.4mm) |
| B6T30 | 6T30 | LL6T30 | 3/4″ | Plug/Male | 3/4″ | 3/4-14 Male NPTF | 2 | 2.20″ (55.9mm) |
1.23″ (31.2mm) |
1.06″ (26.9mm) |
| B6T30BS | – | LL6T30BS | 3/4″ | Plug/Male | 3/4″ | 3/4-14 Male BSPP | 2 | 2.08″ (52.8mm) |
1.44″ (36.6mm) |
1.25″ (31.8mm) |
| B8T35 | 8T35 | LL8T35 | 1″ | Plug/Male | 1″ | 1-11-1/2 Male NPTF | 2 | 2.49″ (63.2mm) |
1.59″ (40.4mm) |
1.38″ (35.1mm) |
| B8T35BS | – | – | 1″ | Plug/Male | 1″ | 1-11 Male BSPP | 2 | 2.36″ (59.9mm) |
2.02″ (51.3mm) |
1.75″ (44.5mm) |
| B10T40 | 10T40 | LL10T40 | 1-1/4″ | Plug/Male | 1-1/4″ | 1-1/4-11-1/2 Male NPTF | 2 | 2.72″ (69.1mm) |
2.02″ (51.3mm) |
1.75″ (44.5mm) |
| B12T45 | 12T45 | – | 1-1/2″ | Plug/Male | 1-1/2″ | 1-1/2-11-1/2 Male NPTF | 2 | 3.31″ (84.1mm) |
2.60″ (66.0mm) |
2.25″ (57.2mm) |
| B16T50 | 16T50 | LL16T50 | 2″ | Plug/Male | 2″ | 2-11-1/2 Male NPTF | 2 | 3.50″ (88.9mm) |
3.18″ (80.8mm) |
2.75″ (69.9mm) |
| B20T55? | – | – | 2-1/2″ | Plug/Male | 2-1/2″ | 2-1/2-8 Male NPTF | 2 | 4.24″ (107.7mm) |
3.75″ (95.3mm) |
3.25″ (82.6mm) |
**High impulse heat treated 416 stainless steel.









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