All specifications are subject to change without notice.

All sales subject to standard terms and conditions.

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Data Sheet

400/500 Threaded All-Welded Diaphragm Seal

of 4

1

SPECIFICATIONS

Connection Style:

400, 500: Threaded

401, 501: Threaded with flushing port

Process Connection

Size:

1

⁄4 to 11⁄2 NPT Female

1

⁄4 to 1 NPT Male

Fill Fluid:

Glycerin, Silicone, Halocarbon®, Syltherm®

(see Table 2 on page 3 for more fill fluid options)

Pressure Rating

(MAWP):

400/401: 4,400 psi

400 (XHP OPT.): 9,000 psi

401 (XHP OPT.): 5,000 psi

500/501: 500 psi

Instrument Connection

Size:

1

⁄4 or 1⁄2 NPT Female

Added Tolerance:

±0.5% typical

Approvals:

CRN, NACE

KEY BENEFITS

• Continuous duty design

• Minimized fill volume

• Suitable for pressures up to 9,000 psi

NON-WETTED COMPONENTS

Top Housing

Bolts/Clamp Rings

Nuts

316L Stainless Steel

Hastelloy® C-276

Monel®

Titanium

Carbon steel

Stainless Steel

WETTED COMPONENTS

Diaphragm

Bottom Housing

316L Stainless steel

Hastelloy® C-276

Monel® 400

Titanium

Tantalum

316L Stainless steel

Hastelloy® C-276

Hastelloy® C-22

Monel®

Titanium

FEATURES

„

All welded construction ensures a leak-tight,

tamper-proof seal

„

All 316L stainless steel construction resists

corrosive attack from a wide variety of

process media

„

Flushing connection optional

TYPICAL USES

„

Oil and Gas

„

Refineries

„

Chemical and Petrochemical

„

Water and Wastewater

„

NACE Compliant Processes

„

Biogas and Biodiesel

400

Threaded All-Welded

Diaphragm Seal

500

Threaded All-Welded

Diaphragm Seal