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NSF International Standard 51 and 61. |
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PI Inch Fittings are manufactured in gray acetal copolymer with food grade nitrile O-rings, making them especially suitable for applications involving foodstuffs or potable liquids. They are also suitable for air and inert gases and can therefore be used on CO2 lines, pneumatic applications, and vacuum.
All PI Inch Fittings are Lead Free.
Working Pressures and Temperatures |
5/32 to 5/16 inch fittings (4mm to 8mm) |
Water: |
Max. 230 psi at 73°F (max. 16 bar at 23°C)
Max. 150 psi at 158°F (max. 10 bar at 70°C)
Min. 33°F (1°C) |
Air: |
Max. 230 psi at –4°F (max. 16 bar at –20°C) |
3/8 to 1/2 inch fittings (10mm to 22mm) |
Water: |
Max. 150 psi at 73°F (max. 10 bar at 23°C)
Max. 100 psi at 158°F (max. 7 bar at 70°C)
Min. 33°F (1°C) |
Air: |
Max. 150 psi at –4°F (max. 10 bar at –20°C) |
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Male Connector — NPTF Thread |
|
Part
Number |
Tube
OD |
Thread
NPTF |
PM010421S |
5/32 |
1/8 |
PM010422S |
5/32 |
1/4 |
PI010621S |
3/16 |
1/8 |
PI010821S |
1/4 |
1/8 |
PI010822S |
1/4 |
1/4 |
PI010823S |
1/4 |
3/8 |
PM010821S |
5/16 |
1/8 |
PM010822S |
5/16 |
1/4 |
PM010823S |
5/16 |
3/8 |
PI011221S |
3/8 |
1/8 |
PI011222S |
3/8 |
1/4 |
PI011223S |
3/8 |
3/8 |
PI011224S |
3/8 |
1/2 |
PI011623S |
1/2 |
3/8 |
PI011624S |
1/2 |
1/2 |
PI012026S |
5/8 |
3/4 |
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Male Connector — BSPT Thread |
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Part
Number |
Tube
OD |
Thread
BSPT |
PM010401S |
5/32 |
1/8 |
PM010402S |
5/32 |
1/4 |
PI010601S |
3/16 |
1/8 |
PI010602S |
3/16 |
1/4 |
PI010801S |
1/4 |
1/8 |
PI010802S |
1/4 |
1/4 |
PM010801S |
5/16 |
1/8 |
PM010802S |
5/16 |
1/4 |
PM010803S |
5/16 |
3/8 |
PI011202S |
3/8 |
1/4 |
PI011203S |
3/8 |
3/8 |
PI011603S |
1/2 |
3/8 |
PI011604S |
1/2 |
1/2 |
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Male Connector — BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
PI010812S |
1/4 |
1/4 |
PI011212S |
3/8 |
1/4 |
PI011213S |
3/8 |
3/8 |
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Male Connector — BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
NCPI011211S |
3/8 |
1/8 |
NCPI011212S |
3/8 |
1/4 |
3/8" x 1/4" has special large seal for use with chamfered face ports.
No thread seal on 3/8" x 1/8". |
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Male Flare Connector — MFL Thread |
45° FLARE |
Part
Number |
Tube
OD |
Thread
MFL |
PI0108F4S |
1/4 |
1/4 |
PM0108F5S |
5/16 |
5/16 |
PI0112F4S |
3/8 |
1/4 |
PI0112F5S |
3/8 |
5/16 |
PI0112F6S |
3/8 |
3/8 |
PI0112F8S |
3/8 |
1/2 |
PI0116F8S |
1/2 |
1/2 |
PM0108C5S |
5/16 |
1/2-16UN |
PI0112C5S |
3/8 |
1/2-16UN |
1/4 MFL = 7/16-20 UNF
5/16 MFL = 1/2-20 UNF
3/8 MFL = 5/8-18 UNF
1/2 MFL = 3/4-16 UNF |
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Female Connector — BSP Thread |
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Part
Number |
Tube
OD |
Thread
BSP |
CI320816FS |
1/4 |
3/4 |
CI321216FS |
3/8 |
3/4 |
Not suitable for air.
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Female Connector — NPTF Thread |
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Part
Number |
Tube
OD |
Thread
NPTF |
PI450822S |
1/4 |
1/4 |
PI451222S |
3/8 |
1/4 |
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Female Connector — UN Thread |
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Part
Number |
Tube
OD |
Thread
UN |
PM4508C5S |
5/16 |
1/2-16 |
PI4512C5S |
3/8 |
1/2-16 |
PI4516C5S |
1/2 |
1/2-16 |
Unified Thread (UN) is generally used in beverage dispense applications, usually associated with Coca Cola.
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Female Cone End Connector — BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
PI451014CS |
5/16 |
1/2 |
PI451015CS |
5/16 |
5/8 |
PI451214CS |
3/8 |
1/2 |
PI451215CS |
3/8 |
5/8 |
PI451614CS |
1/2 |
1/2 |
PI451616CS |
1/2 |
3/4 |
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Female Flat End Connector — BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
PI451014FS |
5/16 |
1/2 |
PI451015FS |
5/16 |
5/8 |
PI451213S |
3/8 |
3/8 |
PI451214FS |
3/8 |
1/2 |
PI451215FS |
3/8 |
5/8 |
PI451613S |
1/2 |
3/8 |
PI451615FS |
1/2 |
5/8 |
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Female Flare Connector — FFL Thread |
45° FLARE |
Part
Number |
Tube
OD |
Thread
FFL |
PM4508F4S |
5/16 |
1/4 |
PI4512F4S |
3/8 |
1/4 |
PI4512F6S |
3/8 |
3/8 |
1/4 FFL = 7/16-20 UNF
3/8 FFL = 5/8-18 UNF |
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Faucet Connector — BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
CI320814S |
1/4 |
1/2 |
CI320816S |
1/4 |
3/4 |
CI321214S |
3/8 |
1/2 |
CI321216S |
3/8 |
3/4 |
Not suitable for air. |
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Faucet Connector — UNS Thread |
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Part
Number |
Tube
OD |
Thread
UNS |
CI3208U7S |
1/4 |
7/16-24 |
CI3210U7S |
5/16 |
7/16-24 |
CI3212U7S |
3/8 |
7/16-24 |
Not suitable for air.
7/16-24 UNS = 1/4 Compression Threads |
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Union Connector |
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Part
Number |
Tube
OD |
Tube
OD |
PM0404S |
5/32 |
5/32 |
PI0406S |
3/16 |
3/16 |
PI0408S |
1/4 |
1/4 |
PM0408S |
5/16 |
5/16 |
PI0412S |
3/8 |
3/8 |
PI0416S |
1/2 |
1/2 |
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Reducing Union Connector |
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Part
Number |
Tube
OD |
Tube
OD |
PI200806S |
1/4 |
3/16 |
PM200804S |
5/16 |
5/32 |
PI201006S |
5/16 |
3/16 |
PI201008S |
5/16 |
1/4 |
PI201206S |
3/8 |
3/16 |
PI201208S |
3/8 |
1/4 |
PI201210S |
3/8 |
5/16 |
PI201608S |
1/2 |
1/4 |
PI201610S |
1/2 |
5/16 |
PI201612S |
1/2 |
3/8 |
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Reducer |
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Part
Number |
Stem
OD |
Tube
OD |
PI060605S |
3/16 |
5/32 |
PI061006S |
5/16 |
3/16 |
PI061008S |
5/16 |
1/4 |
PI061206S |
3/8 |
3/16 |
PI061208S |
3/8 |
1/4 |
PI061210S |
3/8 |
5/16 |
PI061610S |
1/2 |
5/16 |
PI061612S |
1/2 |
3/8 |
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Enlarger |
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Part
Number |
Stem
OD |
Tube
OD |
PI131012S |
5/16 |
3/8 |
PI131216S |
3/8 |
1/2 |
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Plug |
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Part
Number |
Stem
OD |
PM0804S |
5/32 |
PI0806S |
3/16 |
PI0808S |
1/4 |
PM0808S |
5/16 |
PI0812S |
3/8 |
PI0816S |
1/2 |
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End Stop |
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Part
Number |
Tube
OD |
PI4608S |
1/4 |
PI4612S |
3/8 |
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Stem Adapter — NPTF Thread |
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Part
Number |
Stem
OD |
Thread
NPTF |
PM050421S |
5/32 |
1/8 |
PM050422S |
5/32 |
1/4 |
PI050621S |
3/16 |
1/8 |
PI050821S |
1/4 |
1/8 |
PI050822S |
1/4 |
1/4 |
PI050823S |
1/4 |
3/8 |
PM050821S |
5/16 |
1/8 |
PM050822S |
5/16 |
1/4 |
PM050823S |
5/16 |
3/8 |
PI051222S |
3/8 |
1/4 |
PI051223S |
3/8 |
3/8 |
PI051623S |
1/2 |
3/8 |
PI051624S |
1/2 |
1/2 |
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Stem Adapter — BSPT Thread |
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Part
Number |
Stem
OD |
Thread
BSPT |
PI050601S |
3/16 |
1/8 |
PI050801S |
1/4 |
1/8 |
PI050802S |
1/4 |
1/4 |
PM050801S |
5/16 |
1/8 |
PM050802S |
5/16 |
1/4 |
PM050803S |
5/16 |
3/8 |
PI051202S |
3/8 |
1/4 |
PI051203S |
3/8 |
3/8 |
PI051603S |
1/2 |
3/8 |
PI051604S |
1/2 |
1/2 |
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Stem Adapter — BSPP Thread |
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Part
Number |
Stem
OD |
Thread
BSPP |
PM050812S |
5/16 |
1/4 |
PI051212S |
3/8 |
1/4 |
PI051213S |
3/8 |
3/8 |
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Outlet Adapter— BSPP Thread |
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Part
Number |
Tube
OD |
Thread
BSPP |
NC128/I12 |
3/8 |
1/4 |
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Union Tee |
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Part
Number |
Tube
OD |
Tube
OD |
PM0204S |
5/32 |
5/32 |
PI0206S |
3/16 |
3/16 |
PI0208S |
1/4 |
1/4 |
PM0208S |
5/16 |
5/16 |
PI0212S |
3/8 |
3/8 |
PI0216S |
1/2 |
1/2 |
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Union Elbow |
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Part
Number |
Tube
OD |
Tube
OD |
PM0304S |
5/32 |
5/32 |
PI0306S |
3/16 |
3/16 |
PI0308S |
1/4 |
1/4 |
PI0308S-B |
1/4 |
1/4 |
PM0308S |
5/16 |
5/16 |
PI0312S |
3/8 |
3/8 |
PI0316S |
1/2 |
1/2 |
NOTE: PI0308S-B has blue collet. |
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Reducing Elbow |
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Part
Number |
Tube
OD |
Tube
OD |
PM210804S |
5/16 |
5/32 |
PI211006S |
5/16 |
3/16 |
PI211008S |
5/16 |
1/4 |
PI211206S |
3/8 |
3/16 |
PI211208S |
3/8 |
1/4 |
PI211210S |
3/8 |
5/16 |
PI211610S |
1/2 |
5/16 |
PI211612S |
1/2 |
3/8 |
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Fixed Elbow — NPTF Thread |
|
Part
Number |
Tube
OD |
Thread
NPTF |
PI480821S |
1/4 |
1/8 |
PI480822S |
1/4 |
1/4 |
PI480823S |
1/4 |
3/8 |
PI481022S |
5/16 |
1/4 |
PI481023S |
5/16 |
3/8 |
PI481222S |
3/8 |
1/4 |
PI481223S |
3/8 |
3/8 |
PI482024S |
5/8 |
1/2 |
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Plug In Elbow |
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Part
Number |
Stem
OD |
Tube
OD |
PM220404S |
5/32 |
5/32 |
PI220606S |
3/16 |
3/16 |
PI220808S |
1/4 |
1/4 |
PM220808S |
5/16 |
5/16 |
PI221206S |
3/8 |
3/16 |
PI221208S |
3/8 |
1/4 |
PI221210S |
3/8 |
5/16 |
PI221212S |
3/8 |
3/8 |
PI221616S |
1/2 |
1/2 |
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Swivel Elbow — NPTF Thread |
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Part
Number |
Tube
OD |
Thread
NPTF |
PM090421S |
5/32 |
1/8 |
PM090422S |
5/32 |
1/4 |
PI090621S |
3/16 |
1/8 |
PI090821S |
1/4 |
1/8 |
PI090822S |
1/4 |
1/4 |
PM090821S |
5/16 |
1/8 |
PM090822S |
5/16 |
1/4 |
PM090823S |
5/16 |
3/8 |
PI091221S |
3/8 |
1/8 |
PI091222S |
3/8 |
1/4 |
PI091223S |
3/8 |
3/8 |
PI091622S |
1/2 |
1/4 |
PI091623S |
1/2 |
3/8 |
PI091624S |
1/2 |
1/2 |
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Swivel Elbow — BSPT Thread |
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Part
Number |
Tube
OD |
Thread
BSPT |
PI090601S |
3/16 |
1/8 |
PI090801S |
1/4 |
1/8 |
PI090802S |
1/4 |
1/4 |
PM090801S |
5/16 |
1/8 |
PM090802S |
5/16 |
1/4 |
PM090803S |
5/16 |
3/8 |
PI091202S |
3/8 |
1/4 |
PI091203S |
3/8 |
3/8 |
PI091603S |
1/2 |
3/8 |
PI091604S |
1/2 |
1/2 |
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Swivel Branch Tee — NPTF Thread Center Leg |
|
Part
Number |
Tube
OD |
Thread
NPTF |
PM100421S |
5/32 |
1/8 |
PM100422S |
5/32 |
1/4 |
PI100621S |
3/16 |
1/8 |
PI100821S |
1/4 |
1/8 |
PI100822S |
1/4 |
1/4 |
PM100821S |
5/16 |
1/8 |
PM100822S |
5/16 |
1/4 |
PM100823S |
5/16 |
3/8 |
PI101222S |
3/8 |
1/4 |
PI101223S |
3/8 |
3/8 |
PI101623S |
1/2 |
3/8 |
PI101624S |
1/2 |
1/2 |
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Swivel Branch Tee — BSPT Thread Center Leg |
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Part
Number |
Tube
OD |
Thread
BSPT |
PI100601S |
3/16 |
1/8 |
PI100801S |
1/4 |
1/8 |
PI100802S |
1/4 |
1/4 |
PM100801S |
5/16 |
1/8 |
PM100802S |
5/16 |
1/4 |
PM100803S |
5/16 |
3/8 |
PI101202S |
3/8 |
1/4 |
PI101203S |
3/8 |
3/8 |
PI101603S |
1/2 |
3/8 |
PI101604S |
1/2 |
1/2 |
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Swivel Male Run Tee — NPTF Thread |
|
Part
Number |
Tube
OD |
Thread
NPTF |
PM110421S |
5/32 |
1/8 |
PM110422S |
5/32 |
1/4 |
PI110621S |
3/16 |
1/8 |
PI110821S |
1/4 |
1/8 |
PI110822S |
1/4 |
1/4 |
PM110821S |
5/16 |
1/8 |
PM110822S |
5/16 |
1/4 |
PM110823S |
5/16 |
3/8 |
PI111222S |
3/8 |
1/4 |
PI111223S |
3/8 |
3/8 |
PI111623S |
1/2 |
3/8 |
PI111624S |
1/2 |
1/2 |
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Swivel Male Run Tee — BSPT Thread |
|
Part
Number |
Tube
OD |
Thread
BSPT |
PI110601S |
3/16 |
1/8 |
PI110801S |
1/4 |
1/8 |
PI110802S |
1/4 |
1/4 |
PM110801S |
5/16 |
1/8 |
PM110802S |
5/16 |
1/4 |
PM110803S |
5/16 |
3/8 |
PI111202S |
3/8 |
1/4 |
PI111203S |
3/8 |
3/8 |
PI111603S |
1/2 |
3/8 |
PI111604S |
1/2 |
1/2 |
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|
Bulkhead Union |
|
Part
Number |
Tube
OD |
Mounting Hole
Diameter (Inch) |
PM1204S |
5/32 |
0.67 |
PI1206S |
3/16 |
0.67 |
PI1208S |
1/4 |
0.67 |
PM1208S |
5/16 |
0.83 |
PI1212S |
3/8 |
0.83 |
PI1216S |
1/2 |
1.06 |
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Reducing Bulkhead Union |
|
Part
Number |
Tube
OD |
Tube
OD |
Mounting Hole
Diameter (Inch) |
PI121208S |
3/8 |
1/4 |
0.83 |
NC392-02 |
1/2 |
1/4 |
0.83 |
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Tube to Hose Stem |
|
Part
Number |
Stem
OD |
Hose
ID |
PI250806S |
1/4 |
3/16 |
PI250808S |
1/4 |
1/4 |
PI250810S |
1/4 |
5/16 |
PI251006S |
5/16 |
3/16 |
PI251008S |
5/16 |
1/4 |
PM250808S |
5/16 |
5/16 |
PI251012S |
5/16 |
3/8 |
PI251208S |
3/8 |
1/4 |
PI251210S |
3/8 |
5/16 |
PI251212S |
3/8 |
3/8 |
PI251216S |
3/8 |
1/2 |
PI251612S |
1/2 |
3/8 |
PI251616S |
1/2 |
1/2 |
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Tube to Hose Stem — Long Version |
|
Part
Number |
Stem
OD |
Hose
ID |
PI251012SL |
5/16 |
3/8 |
PI251212SL |
3/8 |
3/8 |
|
|
|
Tube to Hose Elbow |
|
Part
Number |
Stem
OD |
Hose
ID |
PI290808S |
1/4 |
1/4 |
PI290810S |
1/4 |
5/16 |
PI291008S |
5/16 |
1/4 |
PM290808S |
5/16 |
5/16 |
PI291208S |
3/8 |
1/4 |
PI291210S |
3/8 |
5/16 |
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Dispensing Valve Stem |
|
Part
Number |
Stem
OD |
NC730-02 |
3/8 |
|
|
|
Dispensing Valve Elbow |
|
Part
Number |
Tube
OD |
Stem
OD |
NC356-02 |
3/8 |
3/8 |
|
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|
Offset Connector |
|
Part
Number |
Tube
OD |
Tube
OD |
NC641 |
1/2 |
5/16 |
|
|
|
Two-Way Divider |
|
Part
Number |
Tube
OD |
PI2308S |
1/4 |
PM2308S |
5/16 |
PI2312S |
3/8 |
PI2316S |
1/2 |
|
|
|
Unequal Two-Way Divider |
|
Part
Number |
Tube OD
Inlet |
Tube OD
Outlet |
PI241210S |
3/8 |
5/16 |
|
|
|
Three-Way Divider |
|
Part
Number |
Tube OD
Inlet |
Tube OD
Outlet |
PI491212S-R |
3/8 |
3/8 |
PI491612S |
1/2 |
3/8 |
PI491616S |
1/2 |
1/2 |
NOTE: PI491212S-R has red collet. |
|
|
Cross |
|
Part
Number |
Tube
OD |
PI4712S |
3/8 |
|
|
|
Reducing Tee |
|
Part
Number |
Tube OD
Ends |
Tube OD
Branch |
PI301208S |
3/8 |
1/4 |
PI301612S |
1/2 |
3/8 |
|
|
|
U-bend |
|
Part
Number |
Tube
OD |
PIUB12S |
3/8 |
PIUB16S |
1/2 |
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The U-Bend is offered for 1/2 inch OD tube sizes. Existing 1/2 inch ID lines can be accommodated by using a standard Tube to Hose Stem. |
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John Guest Adaptability |
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John Guest fittings can be quickly coupled together to form integral new fittings. |
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See more John Guest products available from SWT. |
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