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Water Fittings

 

 

Quick Connect Water Couplings

Moldtite Couplings are specially designed for connecting coolant lines to molds and dies. Couplers and plugs are available in non-valved straight-thru and valved shut-off designs, with standard or push-lock hose barbs.

For maximum unrestricted flow, we recommend the non-valved straight-thru coupler and non-valved straight-thru plug combination.

Where loss of fluid in the mold or die (when disconnected) is of prime concern, a valved shut-off coupler with a valved shut-off plug is recommended. When the increase in flow is more important than the loss of fluid, the valved shut-off coupler can be connected with a non-valved straight-thru plug. However, a valved shut-off plug cannot be used without a valved shut-off coupler.

Push-lock couplers should be used with push-lock hose, eliminating the need for hose clamps.

STANDARD DESIGN:

  • Coupler Body: Brass

  • Sleeve: Brass

  • Sleeve for Valved Coupler: Nickel-plated

  • Valve: Brass

  • Plugs: Brass

  • Seals - Series 200 & 300: Silicone (-80°F to +400°F)

  • Seals - Series 500: Viton (-15°F to +400°F)

TEMPERATURE: -40°F to +500°F
MAXIMUM RATED PRESSURE: 1000 psi


DIMENSIONS
Series # Flat to Flat Point to Point Knurl Diameter
200 Series 0.588
 (19/32")		 0.627 0.695
300 Series 0.746
 (3/4")		 0.826 0.905
500 Series 1.103
 (1-1/8")		 1.265 1.186


Valved, Shut-Off Plugs - Male Thread Brass


PIPE THREAD (NPT) SIZES:  1/4" to 1/2"
PLUG ID SIZES:  1/4" to 3/8"

PART NO. PIPE THREAD (NPT) PLUG I.D.
PSE-252SV 1/4 1/4"
PSE-353SV 3/8 3/8"
PSE-354SV 1/2 3/8"

Valved, Shut-off Couplers - Straight Barb

HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 1/2"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-200V* 1/8 NPT 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-252SV
PSE-204V 1/4" 1/4"
PSE-205V 5/16" 1/4"
PSE-206V 3/8" 1/4"
PSE-300V* 1/4 NPT 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-353SV
PSE-354SV
PSE-306V 3/8" 3/8"
PSE-308V 1/2" 3/8"
PSE-500V* 1/2 NPT 1/2" PSE-552
PSE-553
PSE-554
PSE-556
PSE-552F
PSE-553F
PSE-554F
PSE-556F
PSE-504V 1/2" 1/2"
PSE-506V 3/4" 1/2"

  * Without Hose Barb

Valved, Shut-Off Couplers - 45° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-224V 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-252SV
PSE-225V 5/16" 1/4"
PSE-226V 3/8" 1/4"
PSE-326V 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-353SV
PSE-354SV
PSE-328V 1/2" 3/8"

Valved, Shut-Off Couplers - 90° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-214V 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-252SV
PSE-215V 5/16" 1/4"
PSE-216V 3/8" 1/4"
PSE-316V 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-353SV
PSE-354SV
PSE-318V 1/2" 3/8"

Non-valved, Straight-thru Plugs - Male Thread Brass

PIPE THREAD (NPT) SIZES:  1/16" to 3/4"
PLUG ID SIZES:  1/4" to 1/2"

PART NO. PIPE THREAD (NPT) PLUG I.D.
PSE-250 1/16 1/4"
PSE-251 1/8 1/4"
PSE-252 1/4 1/4"
PSE-253 3/8 1/4"
PSE-351 1/8 3/8"
PSE-352 1/4 3/8"
PSE-353 3/8 3/8"
PSE-354 1/2 3/8"
PSE-552 1/4 1/2"
PSE-553 3/8 1/2"
PSE-554 1/2 1/2"
PSE-556 3/4 1/2"

Non-valved, Straight-thru Plugs - Female Thread Brass

PIPE THREAD (NPT) SIZES:  1/16" to 1/2"
PLUG ID SIZES:  1/4" to 1/2"

PART NO. PIPE THREAD (NPT) PLUG I.D.
PSE-250F 1/16 1/4"
PSE-251F 1/8 1/4"
PSE-252F 1/4 1/4"
PSE-253F 3/8 1/4"
PSE-351F 1/8 3/8"
PSE-352F 1/4 3/8"
PSE-353F 3/8 3/8"
PSE-354F 1/2 3/8"
PSE-551F 1/8 1/2"
PSE-552F 1/4 1/2"
PSE-553F 3/8 1/2"
PSE-554F 1/2 1/2"

Non-valved, Straight-thru Plugs - Female Thread Steel

PIPE THREAD (NPT) SIZES:  1/8" to 3/4"
PLUG ID SIZES:  1/4" to 1/2"

PART NO. PIPE THREAD (NPT) PLUG I.D.
PSE-251FS 1/8 1/4"
PSE-252FS 1/4 1/4"
PSE-253FS 3/8 1/4"
PSE-352FS 1/4 3/8"
PSE-353FS 3/8 3/8"
PSE-354FS 1/2 3/8"
PSE-554FS 1/2 1/2"
PSE-556FS 3/4 1/2"

Non-valved, Straight-thru Couplers - Straight Barb

HOSE ID SIZES:  1/8 NPT to 3/4"
SOCKET WATER PASSAGE:  1/4" to 1/2"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-200* 1/8 NPT 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-204 1/4" 1/4"
PSE-205 5/16" 1/4"
PSE-206 3/8" 1/4"
PSE-300* 1/4 NPT 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-306 3/8" 3/8"
PSE-308 1/2" 3/8"
PSE-500* 1/2 NPT 1/2" PSE-552
PSE-553
PSE-554
PSE-556
PSE-552F
PSE-553F
PSE-554F
PSE-556F
PSE-504 1/2" 1/2"
PSE-506 3/4" 1/2"

  * Without Hose Barb

Non-valved, Straight-thru Couplers - 45° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-224 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-225 5/16" 1/4"
PSE-226 3/8" 1/4"
PSE-326 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-328 1/2" 3/8"

  

Non-valved, Straight-thru Couplers - 90° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 1/2"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-214 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-215 5/16" 1/4"
PSE-216 3/8" 1/4"
PSE-316 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-318 1/2" 3/8"
PSE-514 1/2" 1/2" PSE-552
PSE-553
PSE-554
PSE-556
PSE-552F
PSE-553F
PSE-554F
PSE-556F
PSE-516 3/4" 1/2"
 

Non-valved, Straight-thru Push-lock Couplers -  Straight Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-204PL 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-206PL 3/8" 1/4"
PSE-306PL 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-308PL 1/2" 3/8"
 

Non-valved, Straight-thru Push-lock Couplers -  45° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-224PL 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-226PL 3/8" 1/4"
PSE-326PL 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-328PL 1/2" 3/8"
 

Non-valved, Straight-thru Push-lock Couplers -  90° Barb


HOSE ID SIZES:  1/4" to 1/2"
SOCKET WATER PASSAGE:  1/4" to 3/8"

PART NO. FITS HOSE I.D. SOCKET
WATER
PASSAGE		 USE WITH
PLUG NUMBER
PSE-214PL 1/4" 1/4" PSE-250
PSE-251
PSE-252
PSE-253
PSE-250F
PSE-251F
PSE-252F
PSE-253F
PSE-216PL 3/8" 1/4"
PSE-316PL 3/8" 3/8" PSE-351
PSE-352
PSE-353
PSE-354
PSE-351F
PSE-352F
PSE-353F
PSE-354F
PSE-318PL 1/2" 3/8"

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