Suction & Discharge Hoses

Heavy-Duty Suction & Discharge Hoses | Industrial Transfer Solutions

From heavy-duty mining to precision food processing, our Suction & Discharge hoses Collapse-resistant under negative pressure,

with sturdy helix wire reinforcement for leak-free transfer of sludge, bulk materials, etc.

Suction &Discharge Hoses

Hose Category	Core Material	Reinforcement	ID Range (Inch)	Max Working Pressure	Vacuum Rating	Temp Range
PVC Suction	Flexible Clear PVC	Rigid PVC Helix	3/4" - 8"	45 to 150 PSI	28 in Hg	-10°F to 150°F
Heavy-Duty Rubber	EPDM / SBR Blend	High-Tensile Steel Wire	1" - 12"	150 to 250 PSI	29.9 in Hg	-30°F to 180°F
Material Handling	Pure Gum Rubber / PU	Steel Helix & Anti-Static Wire	2" - 14"	75 to 150 PSI	29 in Hg	-40°F to 160°F
Oil & Fuel Suction	High-Grade Nitrile (NBR)	Dual Steel Wire Helix	3/4" - 6"	150 to 300 PSI	29.9 in Hg	-22°F to 185°F
FDA Food Grade	Chlorobutyl / Clear PVC	SS304 Wire / Poly Helix	1" - 4"	100 to 250 PSI	29 in Hg	-40°F to 240°F (CIP)

Frequently Asked Questions (FAQ)

Q: Why do suction hoses require a wire helix while discharge-only hoses don't?

A: Negative pressure. When a pump sucks fluid, it creates a vacuum inside the hose. Without a rigid structural skeleton like a high-tensile steel wire helix or a hard PVC reinforcement ring, the atmospheric pressure outside forces the hose walls to flatten instantly. This is called a hose collapse, and it chokes the pump. Discharge hoses only experience outward positive pressure, so they rely on fabric braids rather than heavy wire skeletons.

Q: Can I use an NBR oil suction hose for aggressive chemical transfer?

A: Don't do it unless you check the chemical resistance chart first. Nitrile (NBR) is outstanding at resisting non-polar petroleum compounds like diesel, hydraulic oil, and ethanol. However, polar solvents, strong ketones (like MEK), and concentrated acids will rapidly degrade NBR, causing swelling, brittleness, and ultimate rupture. For aggressive chemicals, jump to our cross-linked polyethylene (XLPE) or PTFE lined suction hoses instead.

Q: How does temperature affect the vacuum rating of PVC suction hoses?

A: PVC is highly temperature-sensitive. The ratings published on our spec sheets are calculated at room temperature . As your working fluid or ambient environment heats up toward , the PVC compound softens significantly. This drop in structural rigidity lowers the maximum vacuum capacity, making the hose much more prone to kinking or collapsing under full load. If you run hot lines constantly, switch to rubber.

Suction & Discharge Hoses

Heavy-Duty Suction & Discharge Hoses | Industrial Transfer Solutions

Suction &Discharge Hoses

Frequently Asked Questions (FAQ)

About Us

Contact Us

Links