The 7100B Series is designed to protect low pressure storage tanks and systems from being overpressured. Introduction

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1 VALVES & CONTROLS VAREC 00B SERIES The 00B Series is designed to protect low pressure storage tanks and systems from being overpressured. Introduction The Varec 00B Series is a pressure relief valve designed to protect atmospheric and low pressure storage tanks. The dead-weight loaded valve utilizes weights proportional to the seat surface area to achieve the desired setting. The Air-Cushion seating design keeps the valve tightly sealed until the pressure inside the tank approaches the valve setting. The 00B is part of Varec s modular products which use interchangeable components for assembling a variety of functional configurations. The modular design provides flexibility of field installation and allows the valve to be reconfigured, repaired and even upgraded on-site by simply replacing or adding components. The wide range of materials and sizes allows for its use in virtually any application encountered in the typical tank farm or liquid storage facility. The 00B vents to atmosphere. For the outlet flange option, please refer to Varec Series 0B. Available materials Aluminum Carbon Steel Stainless Steel Ductile Iron Special Materials on Application Flow curves are provided to help you select the proper size for your venting requirements. In addition, your local Varec sales engineer can provide sizing software to assist you in your selection. If you would like sizing and selection assistance, Varec s applications engineering staff and factory trained representatives are available to assist you. An All-Weather option is offered for freezing climates. The design features a special non-frosting and icing-resistant coating on the pallet perimeter and stem, guide posts and tipof- seat ring. The coating, along with the flexible Teflon seat insert, provides additional protection against pallets freezing closed. For high temperature and chemical applications, Varec recommends the extended service option which features Teflon or Viton O-ring and gasket. Features The hood is easily removed for inspection and maintenance. The seat rings are field replaceable. A protective screen is provided to prevent entrance of foreign material. The Varec 00B Series valve features a pallet drip ring and self-draining housing to protect the seating surface from condensate and freezing. The pallet is side-and-center guided for reliability and stability, and is less likely to bind than hinged pallets. The port area is oversized to provide maximum flow capacity Technical data " to " [0 to 00 mm] sizes available. Oversized port for maximum flow. Air Cushion seating for lowest available leakage for weight-loaded valves. All-Weather option. Wide range of materials available for service in most applications. Center and side guided pallet. settings to psig [0. barg]. Replaceable seat ring for ease of maintenance. Leakage rate of SCFH [0.0 Nm /hr] or less at 0% of setpoint. VRCMC-00-US- Copyright 0 Pentair

2 VAREC 00B SERIES Specifications Sizes " [0 mm] " [0 mm] " [00 mm] " [0 mm] " [00 mm] 0" [0 mm] " [00 mm] Flanged Connections - Standard Flange Drilling Aluminum Drilled to ANSI Class 0 dimensions (Flat Face) Drilled to DIN [ Bar] dimensions (Flat Face) Drilled to JPI or JIS (Flat Face) - consult sales CS, DI and SS Body Drilled to ANSI Class 0 dimensions (Raised or Flat Face) Drilled to Imperial DIN [ Bar] dimensions (Raised or Flat Face) Drilled to JPI or JIS (Raised or Flat Face) - consult sales Materials Body Trim Insert Aluminum Aluminum Teflon Carbon Steel Stainless Steel BUNA-N Stainless Steel Viton -A Ductile Iron (Available " to ", 0" and " - consult sales) Setting Information " 0. oz/in 0.0 oz/in Min to oz/in.0 oz/in to psig " 0. oz/in 0. oz/in Min to oz/in.0 oz/in to psig " 0. oz/in 0.0 oz/in Min to oz/in.0 oz/in to psig " 0. oz/in 0. oz/in Min to oz/in.0 oz/in to psig " 0. oz/in 0. oz/in Min to oz/in.0 oz/in to psig 0" 0. oz/in 0. oz/in Min to oz/in.0 oz/in to psig " 0. oz/in 0. oz/in Min to oz/in.0 oz/in to psig. Minimum set for 0" and " 0B with aluminum trim 0. oz/in.. Minimum set for 0" and " 0B with stainless steel trim. oz/in. Dimensions, in. [mm] Size Code 0 Nominal 0 Pipe Size [0] [0] [00] [0] [00] [0] [00] A / 0 / / 0 / [] [] [0] [] [] [] [] B Low Set B High Set Minimum Low Set Range Size Aluminum SS Low Set Range High Set Range / / / / [] [] [] [] [0] [0] [] / / / / / / [] [] [0] [] [] [0] [] Dimensions are for preliminary general information and should not be used for construction purposes. Certified dimensional drawings are available upon request. Testing Each valve is tested for proper setting and for a leakage rate of SCFH (0.0 Nm/hr) or less of air at 0% of the set point. Each valve is tested for leak tightness at % of set point as required by API standard 000. Lead Weight (A/R) Section A-A page VRCMC-00-US- Copyright 0 Pentair

3 VAREC 00B SERIES Specifications 0 Materials Item Body Aluminum Aluminum Carbon Steel SS Ductile Iron Weatherhood Aluminum Aluminum Carbon Steel SS Carbon Steel Guide Stem Aluminum SS SS SS SS Guide Posts SS SS SS SS SS Pallet Aluminum SS SS SS SS Seat Ring Aluminum SS SS SS SS Seat Ring Polypropylene Polypropylene Polypropylene Polypropylene Polypropylene Retainer Insert Teflon Teflon Teflon Teflon Teflon Insert Retainer Aluminum SS SS SS SS 0 Screen HDPE HDPE HDPE HDPE HDPE O-ring BUNA-N BUNA-N BUNA-N BUNA-N BUNA-N Weights Lead Lead Lead Lead Lead Notes:. Materials are as standard. Refer to page for other materials and their corresponding temperature ranges.. Teflon coated aluminum may be supplied with material codes - to achieve lower settings.. All nuts and cap screws are SS. Copyright 0 Pentair VRCMC-00-US- page

4 VAREC 00B SERIES Flow Curves 00B Series relief valve, set at 0. inch of water With API Std Certified Test Data by 0 " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) 00B Series relief valve, set at inch of water With API Std Certified Test Data by 0 " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) page VRCMC-00-US- Copyright 0 Pentair

5 VAREC 00B SERIES Flow Curves 00B Series relief valve, set at inches of water With API Std Certified Test Data by " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) 00B Series relief valve, set at inches of water With API Std Certified Test Data by " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) Copyright 0 Pentair VRCMC-00-US- page

6 VAREC 00B SERIES Flow Curves 00B Series relief valve, set at inches of water With API Std Certified Test Data by " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) 00B Series relief valve, set at inches of water With API Std Certified Test Data by " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) page VRCMC-00-US- Copyright 0 Pentair

7 VAREC 00B SERIES Flow Curves 00B Series relief valve, set at 0 inches of water With API Std Certified Test Data by " " " " " 0" " Thousands of Cubic Feet/Hour at 0 F and. psia, Air Flow (SCFH) Copyright 0 Pentair VRCMC-00-US- page

8 VAREC 00B SERIES Ordering Information Model Description 0 Air Cushion Relief Valve Code 0B B Configuration Standard All Weather Type ( F to 00 F) Code Size " " " " " 0 0" " Code Body/Trim Material Aluminum/Aluminum (- F to 0 F) Aluminum/ Stainless Steel (- F to 0 F) Carbon Steel/ Stainless Steel (-0 F to 0 F) Stainless Steel/ Stainless Steel (- F to 0 F) Ductile Iron/ Stainless Steel (" to " only) (-0 F to F) Code T B V Insert Material Teflon (- F to 00 F) BUNA-N (-0 F to 0 F) Viton (- F to 00 F) Code FF FR DF DR Flange Connection Flat Face flange drilled to ANSI 0 with Fractional Studs Raised Face flange drilled to ANSI 0 with Fractional Studs (not available on Aluminum) DIN Flat Face Flange Drilling DIN Raised Face Flange Drilling (not available on Aluminum) Code OP OS TP TS BP BS VP VS Gasket/O-ring and Retainer/Screen Material Standard (Fiber/BUNA-N) and Plastic (-0 F to 0 F) Standard (Fiber/BUNA-N) and Stainless Steel (-0 F to 0 F) Teflon and Plastic (- F to 0 F) Teflon and Stainless Steel (- F to 0 F) BUNA-N and Plastic (-0 F to 0 F) BUNA-N and Stainless Steel (-0 F to 0 F) Viton and Plastic (- F to 0 F) Viton and Stainless Steel (- F to 0 F) 0 0B T FF OP 0 (Example) Code Setting Range (see table, page ) 0 Low Setting 0 High Setting Example: " pressure relief valve, aluminum body with aluminum trim, Teflon insert, Flat Faced Flange, Standard Fiber/BUNA-N gaskets, low pressure set range, temperature range: -0 F to 0 F VALVES & CONTROLS 00 WAYZATA BLVD # 00, MINNEAPOLIS, MN All Pentair trademarks and logos are owned by Pentair, Inc. All other brand or product names are trademarks or registered marks of their respective owners. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice. Pentair is an equal opportunity employer. page VRCMC-00-US- Copyright 0 Pentair

For high temperature and chemical applications, Varec recommends the extended service option which features Teflon or Viton O-ring and gasket.

For high temperature and chemical applications, Varec recommends the extended service option which features Teflon or Viton O-ring and gasket. GAS CONTROL VAREC 7100B Series PRESSURE RELIEF VALVES The 7100B Series is designed to protect low pressure storage tanks and systems from being over pressured. Introduction The Varec 7100B Series is a