Description

USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME Certified

The USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME is a fully certified, jacketed sanitary tank engineered for extraction, processing, mixing, and storage applications where purity, pressure control, and code compliance matter. Every vessel is built to ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 (2025 Edition), stamped and registered with the National Board, and available in nine capacities from 25L to 800L to match your process scale.

All product-contact surfaces are constructed from 316L stainless steel with a 4A sanitary polish, while the outer jacket is built from 304 stainless steel for reliable heating and cooling control. The internal vessel is rated to 250 PSI (1.72 MPa) at 120°C with a minimum design metal temperature of -80°C, and the jacket is rated to 54.5 PSI (0.375 MPa), giving you a wide operating window for demanding thermal cycles.

This is a freight item — oversized/LTL shipping charges apply and will be confirmed prior to dispatch

500L, 600L and 800L include a Bolted flange with a 3" TC center

ASME Section VIII, Div. 1 316L Wetted Surfaces 4A Sanitary Finish Jacketed 25L–800L

Construction: 316L stainless wetted surfaces with a 4A sanitary polish.

Pressure Rating: 250 PSI internal @ 120°C · 54.5 PSI jacket

Certification: ASME Sec. VIII Div. 1 — U-Stamp, National Board Registered

Why buy from USA Lab

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Nationwide 1-2 day shipping.

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US-based service & spares.

Why this ASME pressure vessel?

Code compliance built in — ASME Section VIII, Div. 1 (2025 Edition) construction, U-Stamped and National Board registered.
Sanitary wetted path — 316L stainless with a 4A polish for easy cleaning and product purity.
Dialed-in thermal control — 304 stainless jacket rated to 54.5 PSI for heating and cooling.
Nine capacities — 25L, 50L, 100L, 200L, 300L, 400L, 500L, 600L, and 800L to fit your line.

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Technical Specifications

Model	Tank Volume (L/Gal)	Tank Pressure Rating (PSI)	Jacket Pressure Rating (PSI)	Material \| Polish	Center Connection	Top Connections	Angled Ports	Bottom Connection	Jacket Connection	Overall Dimensions (mm)	Overall Dimensions (in)	Weight
SPV-25L-ASME	25 L / 6.6 gal	250 PSI	N/A (no jacket)	316L \| 4A	6" TC	2x 1.5" TC \| 2x 1/2" MNPT	2x 2" TC	—	N/A	356L x 356W x 447H	14.02L x 14.02W x 17.6H	68.3 lb
SPV-50L-ASME	50 L / 13.2 gal	250 PSI	54.5 PSI	316L \| 4A	6" TC	4x 1.5" TC	2x 2" TC	6" Outlet	1.5" TC	406L x 406W x 1148.2H	15.98L x 15.98W x 45.2H	173.8 lb
SPV-100L-ASME	100 L / 26.4 gal	250 PSI	54.5 PSI	316L \| 4A	6" TC	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	506L x 506W x 1250H	19.92L x 19.92W x 49.21H	260.1 lb
SPV-200L-ASME	200 L / 52.8 gal	250 PSI	54.5 PSI	316L \| 4A	6" TC	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	556L x 556W x 1654H	21.89L x 21.89W x 65.12H	385.8 lb
SPV-300L-ASME	300 L / 79.3 gal	250 PSI	54.5 PSI	316L \| 4A	6" TC	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	706L x 706W x 1558H	27.8L x 27.8W x 61.34H	538.0 lb
SPV-400L-ASME	400 L / 105.7 gal	250 PSI	54.5 PSI	316L \| 4A	6" TC	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	756L x 756W x 1735H	29.76L x 29.76W x 68.31H	701.1 lb
SPV-500L-ASME	500 L / 132.1 gal	250 PSI	54.5 PSI	316L \| 4A	300# 10" Flange	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	856L x 856W x 1913H	33.7L x 33.7W x 75.31H	1071.5 lb
SPV-600L-ASME	600 L / 158.5 gal	250 PSI	54.5 PSI	316L \| 4A	300# 10" Flange	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	906L x 906W x 1942.7H	35.67L x 35.67W x 76.48H	1148.6 lb
SPV-800L-ASME	800 L / 211.3 gal	250 PSI	54.5 PSI	316L \| 4A	300# 10" Flange	4x 1.5" TC	2x 3" TC	6" Outlet	1.5" TC	958L x 958W x 2223.5H	37.72L x 37.72W x 87.54H	1567.6 lb

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FAQ

What sizes does this pressure vessel come in?

The USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME is available in nine capacities — 25L, 50L, 100L, 200L, 300L, 400L, 500L, 600L, and 800L — so you can match the tank to your process volume.

Is this vessel ASME certified?

Yes. Every USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME is built to ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 (2025 Edition), U-Stamped, and registered with the National Board, with a Manufacturer’s Data Report (Form U-1) provided per unit.

What does the 4A sanitary finish mean?

On the USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME, all product-contact surfaces are 316L stainless finished to a 4A polish, giving you a smooth, easy-to-clean wetted path suitable for sanitary processing.

Does it include a heating/cooling jacket?

All sizes 50L and above of the USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME include a 304 stainless steel jacket rated to 54.5 PSI for heating and cooling; the 25L model is single-walled.

Important Shipping Notice!

DISCLAIMER:

The USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME ships freight due to its size and weight. All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.

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Shipping & Returns

1–3 Business Days Standard Processing

Return Policy ↗ Varies by Product Warranty Policy ↗ Varies by Product

3 Days to Claim Inspect on Arrival

Shipping

Orders ship within 1–3 business days after payment clears. We ship Monday through Friday via UPS, USPS, and freight carriers.
Freight items (crated, hazmat, dropship, or special packaging) can take 1–5 business days to ship.
Expedited shipping speeds up transit, not processing. Contact us for true rush orders.
PO Box addresses ship USPS. Alcohols, chemicals, and hazmat cannot ship to a PO Box.

Full Shipping Policy

Delivery & Damage Claims

Inspect every shipment on arrival. Claims must be filed within 3 business days.
Visible damage? Refuse the delivery and have the driver document it. We will file the claim and ship a replacement.
Concealed damage: contact us within 2 days with photos of the packaging and item. Keep all packing materials.
Freight services (liftgate, residential, inside delivery) are the customer's responsibility to select for their location.

Damage & Freight Details

Returns

USA Lab branded products are returnable within 30 days of order date with prior authorization. Email us before sending anything back.
Solvents, chemicals, and consumables are not returnable once shipped. Custom and made-to-order items are final sale.
Unused items in original packaging carry a 15% restocking fee. Defective items ship back on us.
Items showing any signs of use, wear, contamination, or modification are not eligible for return.
Glassware damage must be reported within 3 business days of delivery for replacement or refund.

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Custom & Made-to-Order Items

Customized and made-to-order products are final sale and not eligible for return under any circumstances.
This includes ductless fume hoods, configured tanks and reactors, and any item built to your specifications.
These products are manufactured specifically for your application. Confirm sizing, voltage, and configuration with our team before ordering.
Damage claim coverage still applies. Inspect on arrival and report issues within 3 business days.

Return Eligibility Details

Warranty

USA Lab products are covered against manufacturing defects for up to 3 years, depending on product line.
1 year: chillers, heaters, rotovaps, reactors, vacuum ovens, mixers, and most equipment. 2 years: UVP vacuum pumps. 3 years: scientific freeze dryers.
Wear items (glassware, gaskets, heating elements, sensors) and fittings/steel are not covered. Report defects within 30 days (3 days for glass).
Non–USA Lab brands are covered by their manufacturer's warranty. See the product's Warranty tab.

Full Warranty Policy

International Orders

Import duties, taxes, VAT, and brokerage fees are not collected by USA Lab and are the receiver's responsibility.
Verify your country's customs charges and import restrictions before ordering.
Refused or unclaimed international shipments are refunded minus shipping and a 15% restocking fee.
International orders are generally non-returnable. Damaged items must be reported within 3 business days.

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USA Lab 316L Sanitary Pressure Vessel w/ 4A Finish - ASME Certified

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