
SR1R Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $200.00 | Condition is New – Open box, PARKER SR1R Safety Relief Valve 300PSIG 1/2" X 3/4" 113 SCFM- NEW NO BOX SURPLUS, shipping cost = $11.13 | 100.0% |

The Parker SR1R Safety Relief Valve is a versatile and reliable solution for pressure safety applications. This valve is designed to automatically open when a predetermined pressure is reached to prevent damage to the system or potential hazards. The SR1R model is part of Parker's range of Severe Duty Safety Relief Valves, which are known for their robust construction and high performance.
The valve body is made of forged, ductile iron, ensuring strength and durability. The valve seat is made of stainless steel, providing excellent wear resistance and ensuring a long service life. The valve is available in various sizes, from 1/2 inch to 4 inches, making it suitable for a wide range of applications.
The SR1R Safety Relief Valve is equipped with a spring-loaded, diaphragm-actuated mechanism. This design provides fast and accurate response to changes in pressure. The valve is also available with various options for actuation, including pneumatic or hydraulic, depending on the specific application requirements.
The valve comes with a built-in positioner, which allows for precise adjustment of the opening pressure. This feature is especially useful in applications where maintaining a consistent system pressure is critical. The positioner is easy to adjust and can be calibrated using a simple handwheel.
The SR1R Safety Relief Valve is also designed with safety in mind. It is certified to various international safety standards, including API 526, API 6D, and ASME B16.5. The valve is also equipped with a rupture disc, which provides an additional layer of protection against overpressure situations.
Overall, the Parker SR1R Safety Relief Valve is a high-performing and reliable solution for pressure safety applications. Its robust construction, fast response, and adjustable opening pressure make it an ideal choice for a wide range of industries and applications, including oil and gas, chemical processing, and power generation.
The Parker SR1R Safety Relief Valve is a popular choice for various industrial applications due to its reliable performance and safety features. Here are some pros and cons of buying this valve:
Pros:1. Safety: The primary function of a safety relief valve is to prevent overpressure situations that could lead to equipment damage or personal injury. The Parker SR1R valve is designed to reliably open when the set pressure is reached, providing an essential safety feature for industrial processes.
2. Versatility: The Parker SR1R valve comes in various sizes and pressure classes, making it suitable for a wide range of applications. It can be used in various industries, including oil and gas, power generation, and chemical processing.
3. Easy Installation: The valve is relatively easy to install, and it comes with a built-in positioner, which simplifies the setup process and reduces the installation time.
4. Durable: The Parker SR1R valve is built to last, with a robust design that can withstand harsh operating conditions. It is made from high-quality materials, including stainless steel, which ensures its longevity.
Cons:1. Cost: The Parker SR1R safety relief valve is a premium product, and it comes with a premium price tag. It may be more expensive than some other relief valves in the market, which could be a deterrent for some buyers.
2. Complexity: While the valve is relatively easy to install, it does come with some complexity due to its built-in positioner. This could require additional training and expertise for installation and maintenance.
3. Maintenance: Like all industrial equipment, the Parker SR1R valve requires regular maintenance to ensure optimal performance and safety. This could involve periodic inspections, adjustments, and replacement of parts, which could add to the overall cost of ownership.
Conclusion:The Parker SR1R Safety Relief Valve is a high-performing and reliable product that offers essential safety features for various industrial applications. Its versatility, durability, and easy installation make it a popular choice among industry professionals. However, its cost and complexity could be a deterrent for some buyers. Ultimately, the decision to purchase the Parker SR1R valve depends on the specific needs and budget of the buyer. If safety and reliability are the top priorities, then the Parker SR1R valve is an excellent investment. If cost is a significant concern, then other relief valves in the market may be worth considering.
Details:
This palette is brand new. Parker - refrigerating specialties: 112454, safety relief valve, SR1R 250 pig 1/2 x 3/4. Do not have the original box.
specifications maxohvac:
- brand: Parker
- mpn: Sr1r
- model: Parker Sr1r
- part type: Valve
payments maxohvac:
- other
- credit card: diners-club
- wallet: apple-pay
shipping maxohvac:
- type: calculated
- transit: 4-11 days
- carrier: usps
- service: usps ground advantage, usps priority mail medium flat rate box
- class: standard, expedited
returns maxohvac:
- method: money back
- paid by: buyer
- policy: returns accepted
- time: 30 days
seller maxohvac:
- city: ashville, ohio
- rating: 100.0%
- # reviews: 41
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- price: $200.00
- item condition: New – Open box
- availability: in stock
- options: ship-to-home
- started: may 18, 2025
- sold #: 15
- in stock #: 1
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