Product Overview
Mercer Series 9100 pressure relief valve, model 91-71M11T1NU1, new in its original crate, manufactured in 2011
This is a Mercer Series 9100 soft-seat safety relief valve configured for gas service, with a 4" 300# RF inlet connection and 6" 150# RF outlet connection.
Valve identification plate specifications:
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Manufacturer: Mercer Valve
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Series: 9100
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Model: 91-71M11T1NU1
- KN: 6M1T1U3
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Serial Number: 693630
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Manufacture Date: 06/2011
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Set Pressure: 350 PSI
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Inlet: 4" 300# RF
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Outlet: 6" 150# RF
- Closed Cap
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Orifice: M
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Seat: PTFE (Teflon)
- O-ring Material: FKM & Buna-N (Standard)
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Service: Gas
- Trim: 316 S.S Disk & Nozzle
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Pressure Limit: 740 PSI
- Spring Type 1N
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Rated Air Capacity: 24,453 SCFM AIR
- Weight circa 180# plus weight of crate and/or skid
The model 91-71M11T1NU1 is identified as having a 251–350 PSI set-pressure range, making the 350 PSI set pressure on this valve the upper end of the specified range for this configuration.
The valve is new in its original crate and has not been installed in service, to the best of our knowledge. Please review photographs of the identification plate and packaging for additional details.
This is a surplus industrial pressure relief valve. Purchaser is responsible for determining suitability, certification requirements, installation requirements, and compatibility with the intended application.
From the manufacturer:
Features:
- Designed with "Auto Seat Technology"®
- A low rated and fully guided spring allows for more consistent Set Pressures from pop to pop.
- Consistent Set Pressures allows for repeatable use without the need for excessive repairs or resetting.
- Open, Close, Seat and Seal™
- Fully guided disk for the proper alignment, opening and closing, and reseating of the valve.
- Mechanical Stop prevents wear on parts and controls valve lift.
- Pop Action relief allows the valve to go to full lift at Set Pressure. This helps with DOT regulated applications.
- Non-rising stems allowing valves to be installed in small areas.
- Sour Service Trim available.
- Additional options available to meet NACE MR0175 requirements.
- Canadian Registration Number (CRN)
- Additional options available to meet Conformité Européenne (CE) to PED Directive 2014/68/EU and/or ATEX Directive 2014/34/EU
