... Key features: ●Compact and simple design.●Multilayer compostie PTFE diaphragm,Website:http://www.meteringpumpfactory.com, long service life. ● ... Reinforced plate design after the diaphragm.●Flow adjustment by the micrometer manually.●Fluid max temperture: ... 70℃(158℉)Materials ●Pump head: PVC, PTFE,SS304,SS316 ●Diaphragm: PTFE ●Check Valve: PVC, PTFE,SS304,SS316 (same as ...