Gasket, 10" 100Ge

This 10" Class 100 PVC Flange Gasket provides a pressure-tight, elastomeric seal at flanged PVC pipe connections in large-bore water distribution, irrigation, process piping, and municipal infrastructure systems. Dimensioned to fit standard 10" Class 100 PVC flanges, this full-face gasket spans the entire face of the mating flange — covering both the pipe bore and the full bolt circle pattern — to distribute bolt clamping load evenly across the flange face and deliver a reliable, leak-free seal when the flanged joint is properly assembled and torqued.

The full-face gasket configuration is the correct and required design for PVC flanged connections. Unlike raised-face metallic flange assemblies where a ring gasket sits within the pipe bore area only, PVC flanges require a full-face gasket that extends to the bolt holes to prevent uneven stress concentration at the flange face — a condition that can crack PVC flange bodies under bolt load if a ring gasket is substituted. At 10", where the flange face area is substantial and the bolt forces required to achieve adequate sealing pressure are significant, using the correct full-face gasket configuration is particularly critical for joint integrity and long-term flange body protection.

EPDM (Ethylene Propylene Diene Monomer) is among the most widely specified gasket materials for PVC flange connections in water distribution, irrigation, and general process piping. Its broad compatibility with potable water, chlorinated water, mild acids, bases, and ozone makes it the standard choice across municipal water systems, commercial irrigation infrastructure, and water treatment process piping where the full-face gasket material must remain resilient and maintain seal integrity through the service life of the flanged joint. EPDM maintains excellent compression set resistance across a wide temperature range, allowing the gasket to sustain sealing force after initial bolt torque and through thermal cycling without significant relaxation or loss of seal performance.

At 10", flanged connections appear at pump station discharge headers, main distribution valve bodies, large-diameter filter vessel connections, irrigation mainline isolation valves, municipal water main branch connections, and major process piping tie-in points where flanged joints are the preferred connection method for their ability to be disassembled for inspection, valve replacement, and system modification without cutting pipe. The 10" gasket is a consumable component of every flanged assembly at this size — replaced each time a flanged joint is opened to ensure a fresh, uncompressed sealing surface is present when the joint is re-torqued.

When assembling a flanged joint using this gasket, center the gasket on the flange face with bolt holes aligned before bringing the opposing flange faces together. Lubricate flange bolts with an appropriate thread lubricant to achieve accurate torque values and prevent galling. Tighten flange bolts in a cross-pattern sequence — not in a circular sequence — to apply even compression across the full gasket face. Bring all bolts to a snug hand-tight before beginning the torque sequence; never fully torque individual bolts before the others are engaged. Follow the PVC flange manufacturer's published torque specifications for the applicable bolt size and flange class — over-torquing PVC flanges risks cracking the flange body, while under-torquing produces inadequate gasket seating pressure and joint leakage. Allow the assembled joint to reach equilibrium before pressurizing and re-check torque values after initial pressurization if required by the manufacturer.

Specifications:

Industries & Applications:

• Municipal Water Distribution — Seals 10" flanged connections at isolation valve bodies, pump station discharge headers, main distribution tees, service entry flanges, and large-diameter meter station connections in municipal water supply and distribution infrastructure where 10" PVC flanged joints are a primary connection method at mainline isolation and branch points
• Large-Scale Irrigation & Agriculture — Provides gasket sealing at 10" flanged isolation valves, pump station outlet flanges, mainline filter vessel connections, and primary distribution header flange joints in large-scale agricultural, golf course, and commercial landscape irrigation systems where the 10" mainline carries primary supply volume to multiple submain distribution zones
• Water & Wastewater Treatment — Seals flanged connections at 10" pump flanges, filter vessel inlet and outlet flanges, clarifier inlet connections, chemical distribution valve flanges, and process piping tie-in points in municipal and industrial water treatment and wastewater processing facilities where large-bore flanged joints are the standard connection method at major process equipment interfaces
• Industrial Process Piping — Provides a reliable flanged joint seal on 10" PVC process headers, equipment nozzle flanges, tank outlet flanges, and large-bore distribution valve connections in chemical processing, mining, and industrial water handling systems where the EPDM material provides adequate chemical compatibility with the process fluid at the flanged joint position
• Pump Station & Infrastructure — Seals 10" flanged connections at pump discharge flanges, suction flange joints, pressure main isolation valves, and infrastructure connection points in municipal pump stations, booster stations, and water supply infrastructure where flanged joints are required for regular valve and pump maintenance access
• Pool, Spa & Aquaculture — Used at 10" flanged connections on large recirculation pump flanges, main filtration system valve flanges, and primary distribution header connections in large commercial aquatic facilities, municipal pools, and aquaculture systems where the large-bore flanged joint must seal reliably through repeated seasonal assembly and disassembly cycles
• Fire Protection & Site Utilities — Seals 10" flanged connection points on fire protection water supply mains, hydrant supply header flanges, and site utility water distribution valve flanges in commercial and industrial site development where large-bore flanged PVC connections are specified at primary utility supply isolation points