Raised Watertight Hatches

Ullage | Stainless Steel

ModelUMC-144-5-SS, UMC-569-5-SS

Sinooutput’s Stainless Steel hatches are the perfect option for an enclosure in a harsh and caustic environment. Our stainless hatches are fabricated using high quality corrosion resistant 304 Stainless Steel that maintains excellent weld-ability to the deck of your vessel.

Models: UMC-144-5-SS · UMC-569-5-SS
Part no.: 01242-104S · 01243-101S
Material: 304 Stainless Steel
Category: Raised Watertight Hatches

Built to ABS standardsQuote within 48 hWorldwide shipping

Overview

Specifications

Dimensions in inches (mm)

Model Number	Part Number	Description	Clear Opening In. (mm)	Weight Total Lbs (Kgs.)
UMC-144-5-SS	01242-104S	8″ Round Ullage w/ 5″ Coaming (Stainless Steel)	8″ (203)	33 (15)
UMC-569-5-SS	01243-101S	10″ Round Ullage w/ 5″ Coaming (Stainless Steel)	10″ (254)	40 (18)

Hardware

Tumble Bolt – Bronze
Dog Handle – Stainless Steel
Bolt 5/8-11 – Stainless Steel
Nut 5-8-11 – Bronze
Gasket – Nitrile Rubber

Features

Custom coaming heights available upon request.
Other gasket material available upon request.
Various hardware options available:
Steel, Stainless Steel, & Bronze Dog Handles (available with or without grease fittings).
Bronze & Stainless Steel Tumble Bolts.
Lug Bolts and nuts made from dissimilar metals to prevent galling and corrosion.
Flame screens available upon request (sold separately).

Application

Stainless ullage hatches are commonly found welded to the top of a raised watertight hatch or on top of the cargo compartments of tank barges. They are typically used as a vent or an inspection port to measure or verify cargo as well as fill a tank.