Series D14 Weir Style Diaphragm Valve
Multi-turn weir-style diaphragm valve provides precise throttling control through bubble-tight closure; NPT or socket true-union connections.
Wetted Parts: Valve body, upper housing, end connector and union nut are choice of PVC, CPVC, beige polypro, or PVDF. Diaphragm is choice of EPDM or PTFE.
O-rings between body and end connector are choice of EPDM or FKM.
Non-wetted Parts: Shaft and sleeve are brass, hardware is stainless steel, indicator is polyethylene, indicator cover is polycarbonate, diaphragm compression is PVDF or GPP, handle is ABS.
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Series DG Flanged Diaphragm Valve
Multi-turn weir-style diaphragm valve with flange connections provides precise throttling control through bubble-tight closure; especially suited to slurries and harsh chemical applications.
Wetted Parts: Valve body, upper housing, end connector and flanges are choice of PVC, CPVC, beige polypro, or PVDF. Diaphragm is choice of EPDM or PTFE/Hypalon/PVDF.
Non-wetted Parts: Handle is ABS. Compression is PVDF on ½” -1”, cast iron on larger sizes. Sleeve and stem are brass on ½” – 2”, cast iron on larger sizes. Cap is brass on ½” -1”, PVC on larger sizes. Compressor pin, grease nipple, fasteners, and other hardware are brass and SS304.
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Application Advantages: Diaphragm Valves
- Weir and diaphragm work in concert to provide ultra-precise throttling of liquid flow
- PTFE diaphragm option results in very high purity control
- EPDM diaphragm option provides excellent bubble-tight shutoff capability
- Multi-turn wheel provides easy, precise movement regardless of flow or pressure
- Convenient, in-line piping installation
- Offered in PVC, CPVC, Polypro and PVDF
- PVC models ship from stock
Popular for process cooling applications, chemical feed, and high purity liquids — any application suited to minute, precise hand adjustment of flow rate. In process cooling applications the D14 weir style diaphragm valve is used worldwide on return lines; the multi-turn diaphragm control enables users to slow or accelerate flow for optimal cooling properties. For more information, contact factory.
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