Description

316L Stainless Steel Sanitary Pressure Vessel – 4A Finish | USA Lab

USA Lab 316L Stainless Steel Sanitary Pressure Vessels deliver premium cleanliness, corrosion resistance, and durability for food & beverage, pharmaceutical, cosmetic, biotech, and chemical applications. Each vessel features a smooth 4A sanitary polish for easy washdown and hygienic performance.

Engineered up to 250 PSI operating pressure and compatible from −80°C to 100°C, these vessels integrate Tri-Clamp (Tri-Clover) ports for secure, leak-resistant connections and fast changeovers.

Available in sizes from 25L to 400L, with robust welds and precision fabrication that minimize downtime and ensure consistent, leak-proof performance in sanitary processes.

316L Stainless Steel 4A Sanitary Polish Up to 250 PSI Tri-Clamp Ports

Premium Alloy: 316L SS with superior pitting & corrosion resistance.

Sanitary Finish: 4A polish for smooth, easy-to-clean surfaces.

Pressure & Temp: 0–250 PSI, −80°C to 100°C for demanding processes.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Resources & Downloads

Specification Sheet (PDF) Cleaning & Passivation Guide Tri-Clamp Sizing Chart Pressure Vessel Safety Notes

Why this sanitary pressure vessel?

316L construction — outstanding corrosion resistance for high-purity and aggressive media.
4A polish — ultra-smooth sanitary surface reduces residue and speeds CIP/SIP cycles.
High pressure design — up to 250 PSI with robust, leak-tight welds and fittings.
Versatile connectivity — Tri-Clamp ports and optional NPT make integration simple.
Process ready — ideal for storage, mixing, buffering, and transfer across sanitary industries.

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Technical Specifications

Model	SPV-25L	SPV-50L	SPV-100L	SPV-150L	SPV-200L	SPV-300L	SPV-400L
Tank Volume (L/Gal)	25L \| 6.6 Gal	50L \| 13.2 Gal	100L \| 26.4 Gal	150L \| 40 Gal	200L \| 52 Gal	300L \| 79 Gal	400L \| 105 Gal
Jacket Volume (L/Gal)	N/A	15. 9L \| 4.2 Gal	23.2L \| 6.1 Gal	24L \| 6.3 Gal	31L \| 8.1 Gal	32.1L \| 8.4 Gal	40.2L \| 10.6 Gal
Tank Pressure Rating (PSI)	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C	0~250 PSI @ -80C~100C
Jacket Pressure Rating (PSI)	N/A	0~80 PSI @ -80C~100C	0~80 PSI @ -80C~100C	0~80 PSI @ -80C~100C	0~80 PSI @ -80C~100C	0~80 PSI @ -80C~100C	0~80 PSI @ -80C~100C
Material \| Polish	316L \| 4A Finish	316L \| 4A Finish	316L \| 4A Finish	316L \| 4A Finish	316L \| 4A Finish	316L \| 4A Finish	316L \| 4A Finish
Top Connections	2x 1/2" NPT\| 2x1.5" TC \| 4" TC Center	2x 1/2" NPT\| 2x1.5" TC \| 6" TC Center	4x1.5" TC \| 6" TC Center	4x1.5" TC \| 6" TC Center	4x1.5" TC \| 6" TC Center	4x1.5" TC \| 6" TC Center	4x1.5" TC \| 6" TC Center
Bottom Connection	N/A	6" TC	6" TC	6" TC	6" TC	6" TC	6" TC
Jacket Connection	N/A	1.5"TC	1.5"TC	1.5"TC	1.5"TC	1.5"TC	1.5"TC
I.D. & Sidewall Height	317mm\|170mm	315mm\|500mm	450mm\|450mm	500mm\|450mm	500mm\|800mm	650mm\|650mm	750mm\|780mm
Overall Dimensions (mm)	325 x 325 x 470	550 x 550 x 1210	750 x 750 x 1250	810 x 810 x 1375	820 x 820 x 1615	960 x 960 x 1540	1010 x 1010 x 1710
Overall Dimensions (in)	12.80 x 12.80 x 18.50	21.65 x 21.65 x 47.64	29.53 x 29.53 x 49.21	31.89 x 31.89 x 54.13	32.28 x 32.28 x 63.58	37.8 x 37.8 x 60.63	39.76 x 39.76 x 67.32
Weight

Popular Industries & Use Cases

Botanical Extraction Pharmaceutical Chemical Sciences Food & Beverage

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Documentation & Compliance

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Custom Solutions

Tailored tanks, skids, and integration help.

Custom Request Consulting

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FAQ

What industries benefit from these sanitary pressure vessels?

Our 316L Stainless Steel Sanitary Pressure Vessel – 4A Finish is ideal for food & beverage, pharmaceuticals, biotechnology, cosmetics, and chemical processing.

How is a 4A finish different from other finishes?

A 4A finish on the 316L Stainless Steel Sanitary Pressure Vessel – 4A Finish provides a smooth, easy-to-clean surface that reduces contamination risk and speeds sanitation.

Can I request custom features or configurations?

Yes, the 316L Stainless Steel Sanitary Pressure Vessel – 4A Finish can be customized with additional ports, capacities, instruments, and specialty fittings.

Are these vessels ASME U-stamped?

Standard units are not ASME U-stamped. If your process or jurisdiction requires U-stamping, contact us for available options and lead times.

Important Shipping Notice

INSPECTION:

Inspect packaging and product upon delivery. If any damage is observed, notify us within 3 days of receipt so we can arrange a replacement or refund per policy.

Damage occurring after delivery/installation is not covered under warranty. Crating fees may apply due to size and weight.

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Specifications

Brand:	USA Lab
Material:	316L Stainless
Surface Finish:	4A / Dairy Finish

Warranty

Fittings and steel do NOT carry any warranty. Fittings and steel items with a defect or other issue must be identified within 30 days of arrival and USA Lab MUST be contacted. After 30 days, there will be no replacements sent for fittings or steel items with a defect or issue. Cross threading, misuse, improper storage, or improper care of fittings/steel are considered user error and are not covered under warranty.