艾默生 Kunkle 215V 337 真空泄压阀和安全阀,Kunkle 阀-EN 数据表 KUNKLE MODELS 215V/337 VACUUM RELIEF AND SAFETY VALVES SAFETY AND RELIEF PRODUCTS FEATURES • Large nozzle design provides high capacity.• Flat bronze valve seats are lapped for optimum performance.• Warn ring offers easy ...