High Flow, Unvalved, Hydraulic Quick Couplings - ST Series | Product Series

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High Flow, Unvalved, Hydraulic Quick Couplings - ST Series High Flow, Unvalved, Hydraulic Quick Couplings - ST Series High Flow, Unvalved, Hydraulic Quick Couplings - ST Series

High Flow, Unvalved, Hydraulic Quick Couplings - ST Series

Parker's high flow quick couplers and nipples are unvalved for use where fluid lines require fast and easy connection and disconnection while providing maximum flow and low pressure drop.

Technical Specifications

  • Application: Hydraulics, High Flow
  • Maximum Operating Pressure: 6700.0 psi, 462.0 bar
  • Product Type: Push to Connect
  • Maximum Operating Temperature: 250 °F, 121 °C
  • Valve Type: Unvalved
  • Minimum Operating Temperature: -40 to -15 °F
  • Body Size: 1/8 to 1-1/2 inch
  • Flow Rate: 3 to 100 gal/min
  • Connection Type: Female NPTF, Male NPTF
  • Vacuum Pressure Rating: No
  • Body Material: Brass, Steel, Stainless Steel
  • Plating Type: Zinc with Clear Trivalent Chromate
  • Seal Material: Nitrile, Fluorocarbon
Safety Warning

Full Product Description

ST Series high flow Couplers (hydraulic, fluids) up to 6700 psi connect with ST Series high flow Nipples.
Parker's ST Series are unvalved quick couplings with manual sleeves providing high flow and low pressure drop. The smooth, straight through flow path allows easy cleaning where the same lines are used for more than one media. These straight through couplers and nipples are available in a wide range of sizes and materials for pressure ranges up to 6700 psi.

Technical Characteristics:
• Sizes: 1/8” – 1-1/2”
• Materials: Brass, 303 Stainless Steel
• Port Ends: Female NPTF, Male NPTF
• Seal Options: Nitrile, EPR, Fluorocarbon, Neoprene
Other Coupler options include: Sleeve lock

Markets:
• Industrial
• Construction
• Commercial Cleaning
• Agriculture

Features/Benefits:
• Multi-purpose high flow coupling, widely used in varied applications
• Wide range of sizes and material options
• Optional coupler sleeve lock helps to prevent accidental disconnection
• Functionally interchanges with similar straight through quick couplings

Applications:  
• High pressure water
• Steam washers

• Carpet cleaners

• Thermal Management 

Related Documents

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Products Coupling Half Maximum Operating Pressure Body Material Body Size (inch) Connection Type Connection Thread Size (inch)
BST-1 Female Coupler 2500 Brass 1/8 Female NPTF 1/8 - 27
BST-10 Female Coupler 1700 Brass 1 1/4 Female NPTF 1 1/4 - 11 1/2
BST-12 Female Coupler 1400 Brass 1 1/2 Female NPTF 1 1/2 - 11 1/2
BST-1M Female Coupler 2500 Brass 1/8 Male NPTF 1/8 - 27
BST-2 Female Coupler 5200 Brass 1/4 Female NPTF 1/4 - 18
BST-2M Female Coupler 5200 Brass 1/4 Male NPTF 1/4 - 18
BST-3 Female Coupler 2700 Brass 3/8 Female NPTF 3/8 - 18
BST-3M Female Coupler 2700 Brass 3/8 Male NPTF 3/8 - 18
BST-4 Female Coupler 2200 Brass 1/2 Female NPTF 1/2 - 14
BST-4M Female Coupler 2200 Brass 1/2 Male NPTF 1/2 - 14
BST-6 Female Coupler 1700 Brass 3/4 Female NPTF 3/4 - 14
BST-6M Female Coupler 1700 Brass 3/4 Male NPTF 3/4 - 14
BST-8 Female Coupler 1200 Brass 1 Female NPTF 1 - 11 1/2
BST-8M Female Coupler 1200 Brass 1 Male NPTF 1 - 11 1/2
BST-N1 Male Nipple 2500 Brass 1/8 Female NPTF 1/8 - 27
BST-N10 Male Nipple 1700 Brass 1 1/4 Female NPTF 1 1/4 - 11 1/2
BST-N10M Male Nipple 1700 Brass 1 1/4 Male NPTF 1 1/4 - 11 1/2
BST-N12 Male Nipple 1400 Brass 1 1/2 Female NPTF 1 1/2 - 11 1/2
BST-N12M Male Nipple 1400 Brass 1 1/2 Male NPTF 1 1/2 - 11 1/2
BST-N1M Male Nipple 2500 Brass 1/8 Male NPTF 1/8 - 27
BST-N2 Male Nipple 5200 Brass 1/4 Female NPTF 1/4 - 18
BST-N2M Male Nipple 5200 Brass 1/4 Male NPTF 1/4 - 18
BST-N3 Male Nipple 2700 Brass 3/8 Female NPTF 3/8 - 18
BST-N3M Male Nipple 2700 Brass 3/8 Male NPTF 3/8 - 18
BST-N4 Male Nipple 2200 Brass 1/2 Female NPTF 1/2 - 14
BST-N4M Male Nipple 2200 Brass 1/2 Male NPTF 1/2 - 14
BST-N6 Male Nipple 1700 Brass 3/4 Female NPTF 3/4 - 14
BST-N6M Male Nipple 1700 Brass 3/4 Male NPTF 3/4 - 14
BST-N8 Male Nipple 1200 Brass 1 Female NPTF 1 - 11 1/2
BST-N8M Male Nipple 1200 Brass 1 Male NPTF 1 - 11 1/2
SSST-2Y Female Coupler 6700 316 Stainless Steel 1/4 Female NPTF
SSST-3Y Female Coupler 5500 316 Stainless Steel 3/8 Female NPTF
SSST-N2 Male Nipple 6700 316 Stainless Steel 1/4 Female NPTF
SSST-N2M Male Nipple 6700 316 Stainless Steel 1/4 Male NPTF 1/4 - 18
SSST-N3M Male Nipple 5500 316 Stainless Steel 3/8 Male NPTF 3/8 - 18
SSST-N4 Male Nipple 3000 316 Stainless Steel 1/2 Female NPTF 1/2 - 14
SST-1 Female Coupler 4200 303 Stainless Steel 1/8 Female NPTF 1/8 - 27
SST-1M Female Coupler 4200 303 Stainless Steel 1/8 Male NPTF 1/8 - 27
SST-2 Female Coupler 6700 303 Stainless Steel 1/4 Female NPTF 1/4 - 18
SST-2M Female Coupler 6700 303 Stainless Steel 1/4 Male NPTF 1/4 - 18
SST-3 Female Coupler 5500 303 Stainless Steel 3/8 Female NPTF 3/8 - 18
SST-3M Female Coupler 5500 303 Stainless Steel 3/8 Male NPTF 3/8 - 18
SST-4 Female Coupler 3000 303 Stainless Steel 1/2 Female NPTF 1/2 - 14
SST-4M Female Coupler 3000 303 Stainless Steel 1/2 Male NPTF 1/2 - 14
SST-6 Female Coupler 3000 303 Stainless Steel 3/4 Female NPTF 3/4 - 14
SST-6M Female Coupler 3000 303 Stainless Steel 3/4 Male NPTF 3/4 - 14
SST-8 Female Coupler 1700 303 Stainless Steel 1 Female NPTF 1 - 11 1/2
SST-8M Female Coupler 1700 303 Stainless Steel 1 Male NPTF 1 - 11 1/2
SST-N1 Male Nipple 4200 303 Stainless Steel 1/8 Female NPTF 1/8 - 27
SST-N1M Male Nipple 4200 303 Stainless Steel 1/8 Male NPTF 1/8 - 27
SST-N2 Male Nipple 6700 303 Stainless Steel 1/4 Female NPTF 1/4 - 18
SST-N2M Male Nipple 6700 303 Stainless Steel 1/4 Male NPTF 1/4 - 18
SST-N3 Male Nipple 5500 303 Stainless Steel 3/8 Female NPTF 3/8 - 18
SST-N3M Male Nipple 5500 303 Stainless Steel 3/8 Male NPTF 3/8 - 18
SST-N4 Male Nipple 3000 303 Stainless Steel 1/2 Female NPTF 1/2 - 14
SST-N4M Male Nipple 3000 303 Stainless Steel 1/2 Male NPTF 1/2 - 14
SST-N6 Male Nipple 3000 303 Stainless Steel 3/4 Female NPTF 3/4 - 14
SST-N6M Male Nipple 3000 303 Stainless Steel 3/4 Male NPTF 3/4 - 14
SST-N8 Male Nipple 1700 303 Stainless Steel 1 Female NPTF 1 - 11 1/2
SST-N8M Male Nipple 1700 303 Stainless Steel 1 Male NPTF 1 - 11 1/2
ST-N1 Male Nipple 2600 Steel 1/8 Female NPTF 1/8 - 27
ST-N1M Male Nipple 2600 Steel 1/8 Male NPTF 1/8 - 27
ST-N2 Male Nipple 5500 Steel 1/4 Female NPTF 1/4 - 18
ST-N2M Male Nipple 5500 Steel 1/4 Male NPTF 1/4 - 18
ST-N3 Male Nipple 3500 Steel 3/8 Female NPTF 3/8 - 18
ST-N3M Male Nipple 3500 Steel 3/8 Male NPTF 3/8 - 18
ST-N4 Male Nipple 2700 Steel 1/2 Female NPTF 1/2 - 14
ST-N4M Male Nipple 2700 Steel 1/2 Male NPTF 1/2 - 14
ST-N6 Male Nipple 2700 Steel 3/4 Female NPTF 3/4 - 14
ST-N6M Male Nipple 2700 Steel 3/4 Male NPTF 3/4 - 14
ST-N8 Male Nipple 2000 Steel 1 Female NPTF 1 - 11 1/2
ST-N8M Male Nipple 2000 Steel 1 Male NPTF 1 - 11 1/2
BST-2-BSPP Female Coupler 5200 Brass 1/4 Female BSPP
BST-6-BSPP Female Coupler 1700 Brass 3/4 Female BSPP
BST-8-BSPP Female Coupler 1200 Brass 1 Female BSPP
BST-N1-BSPP Male Nipple 2500 Brass 1/8 Female BSPP
BST-N2-BSPP Male Nipple 5200 Brass 1/4 Female BSPP
BST-N3-BSPP Male Nipple 2700 Brass 3/8 Female BSPP
BST-N6-BSPP Male Nipple 1700 Brass 3/4 Female BSPP
BST-N8-BSPP Male Nipple 1200 Brass 1 Female BSPP
SST-2-BSPP Female Coupler 6700 303 Stainless Steel 1/4 Female BSPP
SST-3-BSPP Female Coupler 5500 303 Stainless Steel 3/8 Female BSPP
SST-4-BSPP Female Coupler 3000 303 Stainless Steel 1/2 Female BSPP
SST-N2-BSPP Male Nipple 6700 303 Stainless Steel 1/4 Female BSPP
SST-N3-BSPP Male Nipple 5500 303 Stainless Steel 3/8 Female BSPP
SST-N4-BSPP Male Nipple 3000 303 Stainless Steel 1/2 Female BSPP
SST-N8-BSPP Male Nipple 1700 303 Stainless Steel 1 Female BSPP
SST-4Y-BSPP Female Coupler 3000 303 Stainless Steel 1/2 Female BSPP
BST-1Y Female Coupler 2500 Brass 1/8 Female NPTF 1/8 - 27
BST-2-SL Female Coupler 5200 Brass 1/4 Female NPTF 1/4 - 18
BST-2MSL Female Coupler 5200 Brass 1/4 Male NPTF 1/4 - 18
BST-2MY Female Coupler 5200 Brass 1/4 Male NPTF 1/4 - 18
BST-3-SL Female Coupler 2700 Brass 3/8 Female NPTF 3/8 - 18
BST-3MY Female Coupler 2700 Brass 3/8 Male NPTF 3/8 - 18
BST-4Y Female Coupler 2200 Brass 1/2 Female NPTF 1/2 - 14
BST-6Y Female Coupler 1700 Brass 3/4 Female NPTF 3/4 - 14
SST-1MY Female Coupler 4200 303 Stainless Steel 1/8 Male NPTF 1/8 - 27
SST-1Y Female Coupler 4200 303 Stainless Steel 1/8 Female NPTF 1/8 - 27
SST-2MY Female Coupler 6700 303 Stainless Steel 1/4 Male NPTF 1/4 - 18
SST-2Y Female Coupler 6700 303 Stainless Steel 1/4 Female NPTF 1/4 - 18
SST-3MY Female Coupler 5500 303 Stainless Steel 3/8 Male NPTF 3/8 - 18
SST-3Y Female Coupler 5500 303 Stainless Steel 3/8 Female NPTF 3/8 - 18
SST-4MY Female Coupler 3000 303 Stainless Steel 1/2 Male NPTF 1/2 - 14
SST-4Y Female Coupler 3000 303 Stainless Steel 1/2 Female NPTF 1/2 - 14
SST-8Y Female Coupler 1700 303 Stainless Steel 1 Female NPTF 1 - 11 1/2
BST-2Y Female Coupler 5200 Brass 1/4 Female NPTF 1/4 - 18
BST-3Y Female Coupler 2700 Brass 3/8 Female NPTF 3/8 - 18

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