Hose Clamps & Clamping Tools

PYI Worm Gear Hose Clamp

Worm Gear Hose Clamp

For 1/2" to 7-1/4" (13mm - 180mm) Hoses

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Flexible Hose Clamp Driver

Flexible Hose Clamp Driver

Fits All PYI Hose Clamps

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PYI Clamp Jacket

PYI Clamp Jacket

Protects User From Cuts & Scrapes

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PYI Worm Gear Hose Clamp

PYI Hose Clamp

Safe For All Types of Hoses

By rolling the edges and removing perforations and ribs on the inside portion of the embossed hose band, the PYI Hose Clamp can be used on the softest hoses without worry of damage to the underlying hose surface during installation and throughout its use.

Durable & Stable Clamping Force

The PYI Hose Clamp utilizes a durable riveting screw cage design that is machined from a single piece of 316L stainless steel which is capable of withstanding high tightening torque and internal hose pressure. Our Hose Clamps can be hand tightened up to 15.5 NM (135 in/lbs.) without the screw slipping or distorting the screw cage during its installation and use providing a reliably strong and stable clamping force and a long-lasting hold that is ideal for most demanding applications.

Reliable

PYI Hose Clamps are manufactured entirely out of 316L Stainless Steel giving them excellent resistance to corrosive chemicals and acids that could limit the life of other metals. Whether used industrially or around the house, the PYI Hose Clamp will keep your hose secure in some of the harshest environments.

Quality at Every Level of Manufacturing

Tested and BS5315:1991 certified as well as certified under ISO 9001:2015, these standards assure excellent design and manufacturing quality across the entire manufacturing process, from inception to implementation.


316L vs. 304 Stainless Steel

316L Stainless Steel

316L stainless steel utilizes a higher percentage of molybdenum, chromium and nickel than 304 stainless steel. The addition of these elements, notably molybdenum, improves the resistance to corrosion and chloride pitting, provides a greater creep resistance, and a stronger stress-to-rupture and tensile strength at elevated temperatures.

The PYI Hose Clamp has been shown to last up to 2 times longer than other leading brands in corrosion salt spray tests.

  • 316L has slightly less Carbon in it then 316 making it a better choice for welding.
  • 316L a great stainless steel for high-temperature, high-corrosion uses, which is why it's so popular for use in construction and marine projects.
  • The lower carbon content in 316L minimizes deleterious carbide precipitation as a result of welding. Consequently, 316L is used when welding is required in order to ensure maximum corrosion resistance.

316 is the standard marine grade stainless steel due to its excellent resistance to corrosion in harsh environments. 316L SS utilizes a higher percentage of molybdenum, chromium and nickel than other grades of Stainless Steel, while also having a very small amount of Carbon as compared to other grades of Stainless Steel. The addition of these elements, notably molybdenum, improves the stainless steel’s strength, resistance to corrosion, and ability to withstand harsh chemicals and acids.

Benefits to Adding Molybdenum:
Most commercial molybdenum is used in the production of alloys, where it is added to increase hardness, strength, electrical conductivity and resistance to wear and corrosion.

  • Molybdenum improves Stainless Steel’s general resistance to corrosion and chloride pitting which helps to lengthen the usable life of Stainless Steel and allows the PYI Hose Clamp to maintain a strong clamping force throughout its useful life.
  • Molybdenum provides a greater creep (cold flow) resistance over time. Creep, in the material sciences, is a material’s ability to change its shape or slowly deform permanently over time. This allows the PYI Hose Clamps to provide a consistent clamping force throughout its useful life without damage or disfigurement due to constant tension on the hose clamp during use.
  • The addition of molybdenum gives the Stainless Steel a stronger stress-to-rupture and ultimate tensile strength at elevated temperatures, up to 932°F (500°C). Stress-to-rupture is a sudden and complete failure of a material under stress load. Ultimate tensile strength is a material’s ability to withstand tension which tries to pull the material apart, as opposed to compress the material.

Certifications

PYI Hose Clamps are manufactured in a facility that has earned the BSI Kitemark™ and is ISO 9001:2015 certified by Bureau Veritas.

  • Passed a Salt Spray Test >1000 Hours for red rust formation
  • Report Test No: 8505062
  • Test No: 8590868
  • Issue By: BSI Assurance UK Limited, BSI Group
  • Issue Date: July 27, 2016
  • Standard: BS 5315:1991

Specifications

Size chart for PYI Hose Clamps
Part # A B C D E Recommended Torque Max Operating Temp
07HC-20 1/2" - 3/4" (13mm - 20mm) 0.75" (19.0mm) 0.37" (9.5mm) 0.39" (10.0mm) 0.48" (12.3mm) 30.1 in/lbs 500°C (932°F)
07HC-30 7/8" - 1-1/4" (22mm - 30mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 45.1 in/lbs 500°C (932°F)
07HC-45 1-3/8" - 1-3/4" (35mm - 45mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 45.1 in/lbs 500°C (932°F)
07HC-55 1-1/2" - 2-1/4" (40mm - 55mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 52.2 in/lbs 500°C (932°F)
07HC-60 1-3/4" - 2-3/8" (45mm - 60mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 52.2 in/lbs 500°C (932°F)
07HC-70 2-1/4" - 2-3/4" (55mm - 70mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-80 2-3/8" - 3-1/4" (60mm - 80mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-90 2-3/4" - 3-5/8" (70mm - 90mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-100 3-3/8" - 4" (85mm - 100mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58"(14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-120 3-5/8" - 4-3/4" (90mm - 120mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-140 4-3/4" - 5-5/8" (120mm - 140mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-150 5-1/8" - 6" (130mm - 150mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 60.2 in/lbs 500°C (932°F)
07HC-160 5-1/8" - 6-1/2" (130mm - 160mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 52.2 in/lbs 500°C (932°F)
07HC-180 6" - 7-1/4" (150mm - 180mm) 0.94" (24.0mm) 0.47" (12.0mm) 0.45" (11.5mm) 0.58" (14.65mm) 52.2 in/lbs 500°C (932°F)

Testing

Lower Idle Torque Test

Lowewr Idle Torque Test for PYI Hose Clamp

The Lower Idle Torque is the amount of torque required to twist the screw to tighten the clamp (lower is better).

Destructive Turning Torque Test

Destructive Turning Torque Test for PYI Hose Clamp

The Destructive Turning Torque Test measures how much force is required to break the hose clamp (higher is better).

Hose Clamp Accessories

Flexible Hose Clamp Driver

Flexible Hose Clamp Driver

Perfect for working in crowded compartment such as plumbing applications. The flexible shaft provides easy access to tight spaces and odd angles.

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PYI Clamp Jacket

Clamp Jacket

  • Protect a worker from cuts and scrapes against the sharp ends of hose clamps.
  • Gives your work a nice clean finished look.
  • Provides protection to the surrounding material.
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Applications

PYI Hose Clamp on a car

Automotive

PYI Hose Clamp on a tractor

Lawn Mower / Tractor

PYI Hose Clamp on a boat

Marine

PYI Hose Clamp used in houses, plumbing

House / Plumbing


Downloads

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