D70 HEAVY DUTY 2-PIECE INDUSTRIAL DIAPHRAGM SEAL

Two piece construction and designed to withstand even the most severe process applications
“Continuous use” seals–backing plate will prevent diaphragm from rupturing if pressure sensing instrument fails. Pressure will be held until instrument is replaced
Diaphragm is separable for servicing and is available with a 1/8” NPT or 1/4” NPT flushing connection for removing any material which may clog the process connection
Standard diaphragm is constructed of AISI 316L stainless steel and welded to the upper chamber of the seal for pressures 30 psi (200 kPa) and above; optional Viton® diaphragm available for ranges from 30” Hg Vacuum (-100 kPa) up to 100 psi (690 kPa). Others diaphragms available
FKM is highly recommended for applications less than 10 psi
ASME B40.100 compliant
RoHS compliant
CRN registered (all 316 SS only)
5 year warranty

Where the process fluid is corrosive or viscous and would clog instrument internals/solidify within the pressure gauge, switch or transmitter

SPECIFICATIONS

DOCUMENTS

DRAWINGS

FAQS


Housing	316L SS, Monel^®, Hastelloy^® C
Diaphragm	316L SS, Monel^®, Hastelloy^® C, FKM
Construction	Two piece construction
Gasket Material	Buna N (FKM, PTFE optional)
Connection	Bottom: 1/4”, 1/2”, 3/4” and 1” NPTF Top: 1/4” and 1/2” NPTF
Process Temperature	-22°F to 212°F (-30°C to 100°C)
Other	Flushing connection available. Other materials such as PTFE, PVC, Carbon steel, acetal, Hastelloy^® B, titanium, tantalum, Inconel 825, Inconel 625, Inconel 600, Duplex SS, Super Duplex SS, 316/316L Dual Certified, Monel 400 etc. are available upon request