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Above-ground steel pipelines
Rupture Pin · A brand of Taylor Valve Technology

Rupture Pin Pressure Relief and Isolation Valves

Pin-operated valves from Taylor Valve Technology that hold a bubble-tight seal until an exact set point, then act in milliseconds. The pin sits outside the process and never touches the media. We help you choose the model and set pressure for your service.

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What Rupture Pin Provides

In every Rupture Pin valve a precision pin, sized by Euler's Law, acts as both the pressure sensor and the actuator. When pressure reaches the set point the pin gives way and the valve opens to relieve pressure or closes to isolate it.

Rupture Pin and Hydroseal share the API 526 2500 body.

  • Five pressure relief models, including ASME UD-stamped Models CC-ASME and C-ASME
  • Drilling relief valves for mud, slurry and frac fluid systems: Models IC and HPRV
  • Pressure isolation valves that help protect downstream equipment: Models JA ESV and A ESV
  • Set pressure is changed by changing the pin
Category 1 of 3

Pressure Relief Valves

These pin-operated valves hold a bubble-tight seal until pressure reaches an exact set point. Then they open in milliseconds to relieve pressure from the protected system.

Rupture Pin Model CC-ASME angle relief valve in blue with a stainless pin cage

Model CC-ASME

ASME UD-stamped angle relief valve with API-526 spring-relief dimensions

The Model CC-ASME holds a bubble-tight, closed position until pressure reaches an exact set point. At set point it opens instantly to relieve pressure from the protected system.

Key features

  • Set point range 15 to 1,480 psi, varying with inlet and outlet size
  • Sizes 1 x 2 in to 8 x 10 in, flanged 150# to 600#
  • Rated for both liquid and air media
  • Downstream balanced, so back pressure does not affect set point
  • Reset by changing the pin, without opening the line to atmosphere

Common applications

  • ASME code-governed pressure relief
  • Chemical processing, where its certified design fits the project
  • Refinery and petrochemical relief requirements
  • A wide variety of liquid and air pressure relief services
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Rupture Pin Model C-ASME full bore angle relief valve in blue with a large flanged outlet

Model C-ASME

ASME UD-stamped full bore angle relief valve, 1.5 to 30 in

The Model C-ASME is the ASME-certified version of the angle body Model C relief valve. It holds a bubble-tight seal until pressure reaches an exact set point, then opens instantly to relieve the protected system.

Key features

  • Set point range 15 to 1,480 psi, varying with inlet and outlet size
  • Full bore orifice in sizes 1.5 in to 30 in, flanged 150# to 600#
  • Outlet can match the inlet or be one size larger
  • Rated for both liquid and air media
  • Options include a proximity sensor, pin storage at the valve and a stainless-steel safety cage

Common applications

  • ASME-required pressure relief systems
  • Oil and gas production
  • Pipelines
  • Chemical processing
  • Wastewater processing
  • Pulp and paper plants
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Rupture Pin Model D inline pressure relief valve in blue with flanged ends

Model D

Inline pressure relief valve for process plants and pipelines

The Model D is an inline valve that holds a bubble-tight, closed position until pressure reaches an exact set point. At set point it opens instantly to relieve pressure from the protected system.

Key features

  • Set point range 5 to 2,000 psi
  • Orifices usually full bore or greater
  • Unaffected by pulsating pressures or changing ambient temperature at the pin
  • Stainless-steel seat and piston standard
  • Options include a proximity sensor, pin storage, a flush port and a safety cage

Common applications

  • Chemical process plants
  • Refineries
  • Pipelines and midstream
  • Separators
  • Paper mills
  • Wastewater processing
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Rupture Pin Model CM angle relief valve with an angled flush port

Model CM

Angle relief valve for pulp, viscous fluids and steam-jacketed lines

The Model CM is an angle body valve that holds a bubble-tight seal until pressure reaches an exact set point, then opens instantly to relieve pressure. Flow moves past a flat piston with no voids for material to pack into.

Key features

  • Set point range 5 to 2,000 psi
  • Flat piston with no voids for material to pack into
  • Angle port injects water to clear solids from the seat before reseating
  • Unaffected by pulsating pressures or changing ambient temperature at the pin
  • Stainless-steel seat and piston standard

Common applications

  • Pulp applications
  • Pulp and paper industry
  • Viscous fluids
  • Steam-jacketed flow systems
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Rupture Pin Model H high-pressure relief valve in stainless steel

Model H

High-pressure, low-volume angle relief valve for injection systems

The Model H is an angle valve built for high-pressure, low-volume service. It holds a bubble-tight seal until pressure reaches an exact point, then opens within milliseconds.

Key features

  • 316 stainless steel body and trim standard
  • Kalrez or Viton seals for high pressures
  • Pin sits outside the flow, so the line stays closed during a pin change
  • One person can change the pin in under a minute
  • Unaffected by pulsating pressure or changing ambient temperature at the pin

Common applications

  • Methanol injection systems
  • Chemical injection systems
  • High-pressure, low-volume relief
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Category 2 of 3

Pressure Relief Drilling Valves

Angle body relief valves built for mud, slurry and frac fluid systems. They open in milliseconds to help prevent pump, hose and system damage and handle pulsating pressure well.

Rupture Pin Model IC mud and slurry relief valve in blue with a hammer union inlet

Model IC

Mud and slurry relief valve for drilling pump systems

The Model IC is an angle body valve that holds a bubble-tight seal until pressure reaches an exact set point. It then opens in milliseconds to help prevent pump, hose and system damage on mud and slurry pump systems.

Key features

  • 1002 and 1502 hammer unions
  • Change the set pressure by changing the pin, using color-coded POCO pins
  • Forged AISI 4130 body with stainless-steel trim and drilling-compatible seals
  • Greater washout resistance, with no direct impingement on the seat, piston or seal
  • Field repairable

Common applications

  • Mud pump systems
  • Slurry pump systems
  • Frac fluid systems
  • Well drilling mud pump relief
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Rupture Pin Model HPRV high-pressure relief valve in red with a hammer union inlet

Model HPRV

High-pressure relief valve for frac fluid systems

The Model HPRV is an angle body valve that holds a bubble-tight seal until pressure reaches an exact set point. It then opens in milliseconds to help prevent pump, hose and system damage on frac fluid systems.

Key features

  • Relief settings from 7,000 to 15,000 psi with POCO set pressure pins
  • 3 in 1502 hammer unions, standard 1502H x 1502T connections
  • Change the set pressure by changing the color-coded pin
  • Forged AISI 4130 body with stainless-steel trim
  • Greater washout resistance and field repairable

Common applications

  • Frac fluid systems
  • Mud systems
  • Slurry systems
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Category 3 of 3

Pressure Isolation Valves

These valves isolate pressure to help protect downstream equipment and processes. They stay open in normal service, then close in milliseconds for a bubble-tight seal when the pin reaches its set pressure.

Rupture Pin Model JA ESV inline isolation valve in red with flanged ends

Model JA ESV

Inline emergency shutoff valve that isolates excess pressure

The Model JA is an inline valve that stays open in normal flow. When pressure reaches the set point it closes for a bubble-tight seal, isolating pressure to help prevent damage to downstream equipment.

Key features

  • Fully mechanical, with no need for electricity or pneumatics on site
  • Sizes 2 in to 12 in with 150#, 300# and 600# flanges
  • Color-coded pins match the top pin holding nut
  • Pins can be changed by one person in minutes
  • Optional proximity sensor for remote closed indication

Common applications

  • Protecting downstream equipment from excess pressure
  • Meter houses
  • Line transitions
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Rupture Pin Model A ESV angle body isolation valve in blue with a stainless pin cage

Model A ESV

Angle body isolation valve that protects meter runs

The Model A is an angle body valve that stays open in normal flow and closes for a bubble-tight seal at set point. If a downstream line breaks, the flow itself drives the valve closed.

Key features

  • Closes on a downstream line break
  • Keeps you from flaring or venting production to the atmosphere
  • Standard 2 in NPT and custom connections
  • Pin color matches the holding nut color to help confirm the set pressure
  • Optional proximity sensor for remote closed indication

Common applications

  • Protecting meter runs from excess pressure
  • Keeping well pressure within D.O.T. transmission limits
  • Meter houses
  • Line transitions
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Where Rupture Pin Valves Are Used

Rupture Pin valves are pin-operated pressure relief and pressure isolation solutions for selected liquid, gas and demanding process applications. Tap a model to see its details.

Water & Wastewater Treatment

Pumps, piping and treatment equipment can need protection from excessive pressure. Models D and C-ASME are listed by the manufacturer for wastewater processing, including industrial wastewater, where the application and code requirements support their use.

Model DModel C-ASME

Water & Wastewater industry page

Chemical Processing

Pressure protection for chemical process lines and vessels. Models D and C-ASME are identified for chemical processing and Model H for high-pressure methanol and chemical injection. Model CC-ASME fits where its certified design matches the project. Material and seal compatibility is confirmed for each service.

Model DModel C-ASMEModel HModel CC-ASME

Chemical industry page

Refineries & Petrochemical

Protection across process equipment, pipelines, separators and fluid handling systems. Model D is identified for refineries, separators, pipelines and midstream service. Models C-ASME and CC-ASME can be evaluated for code-governed relief requirements.

Model DModel C-ASMEModel CC-ASME

Petrochemical industry page

Drilling Operations

Models IC and HPRV relieve mud, slurry and frac fluid systems in milliseconds to help prevent pump, hose and system damage. Set pressure is changed by swapping the color-coded pin.

Model ICModel HPRV

Oil & Gas industry page

These are applications to evaluate, not blanket approvals. We confirm the fluid, solids, pressure, temperature, connections, materials and any code requirements before recommending a valve.

Technical Resources

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Compare 10-year costs for your application: purchase, downtime, replacements and preventive maintenance.

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Application help

Need help selecting a Rupture Pin valve?

Send us the set pressure, operating pressure, process media, temperature, line size and connection, back pressure and how the valve will be mounted, since pins are sized with the valve oriented as it will be in use. Tell us if the valve must be ASME UD stamped. Replacing a pin? Send a photo of the pin label; it shows the pin code, valve serial number and set point. Comparing with a rupture disc? We carry no rupture disc line, so we will tell you plainly where a pin fits and where it doesn't. If you don't know an answer, mark it unknown.

Set pressureOperating pressureProcess mediaTemperatureLine size and connectionBack pressureValve orientation

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Adaptive Industrial Solutions
1015 Grupp Road #31733
St. Louis, MO 63131
877.818.5009
sales@adaptiveind.com
www.adaptiveind.com
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