Fume Hood Ductwork & Venting Accessories
HEMCO offers a complete range of chemical-resistant ducting and venting accessories designed for safe and efficient laboratory ventilation. These components are engineered for durability, ease of installation, and reliable performance in handling hazardous exhaust systems.
Ducting & Venting Components
Flexible and Rigid PVC Ducting | 4” | 6” | 8” | 10” | 12” | 14” | |
|---|---|---|---|---|---|---|---|
| 1. Flexible Ducting neoprene impregnated fiberglass reinforced with steel helix wire. Standard 12’ lengths. Each piece includes two strap clamps. | Item. No. 80051 | Item. No. 80052 | Item. No. 80053 | Item. No. 80054 | Item. No. 80055 | Item. No. 80056 |
| 2. PVC Rigid Ducting chemical resistant for permanent installations. Standard 10’ lengths with straight ends. | Item. No. 82004 | Item. No. 82006 | Item. No. 82009 | Item. No. 82011 | Item. No. 82013 | Item. No. 82015 |
| 3. PVC Coupling required to connect straight sections. | Item. No. 82147 | Item. No. 82149 | Item. No. 82153 | Item. No. 82157 | Item. No. 82159 | Item. No. 82160 |
| 4. PVC 90 degree Elbow used in order to offset obstacles. Has belled ends for duct connections. | Item. No. 82060 | Item. No. 82061 | Item. No. 82063 | Item. No. 82066 | Item. No. 82068 | Item. No. 82069 |
| 5. PVC 45 degree Elbow used in order to offset obstacles. Less static pressure loss than a 90 degree elbow. Has belled ends for duct connections. | Item. No. 82082 | Item. No. 82083 | Item. No. 82085 | Item. No. 82087 | Item. No. 82089 | Item. No. 82090 |
| 6. PVC 45 degree WYE lateral for joining common ductwork in multiple hood designs. Branch diameter may be sized to 2” to 4” smaller than main diameter. Has belled ends for duct connections. | Item. No. 82216 | Item. No. 82218 | Item. No. 82226 | Item. No. 82229 | Item. No. 82233 | Item. No. 82234 |
| 7. PVC Tee used in manifold exhaust systems. Has belled ends for duct connection. | Item. No. 82034 | Item. No. 82036 | Item. No. 82038 | Item. No. 82040 | Item. No. 82044 | Item. No. 82046 |
| 8. PVC Butterfly Damper modifies cfm for single or multiple hood arrangement. Has belled ends for duct connection. | Item. No. 82450 | Item. No. 82452 | Item. No. 82454 | Item. No. 82456 | Item. No. 82458 | Item. No. 82460 |
| 9. PVC Blast Gate Damper a gate that slides in and out to control cfm. Has belled ends for duct connection. | Item. No. 82369 | Item. No. 82371 | Item. No. 82373 | Item. No. 82375 | Item. No. 82377 | Item. No. 82379 |
| 10. PVC Rain Skirt slips over straight pipe on roof to slope water away from cutout. | Item. No. 82328 | Item. No. 82330 | Item. No. 82332 | Item. No. 82334 | Item. No. 82336 | Item. No. 82337 |
| 11. PVC Vent outlet for horizontal venting through wall or window. Angled end prevents rain from entering. Male connector included. | Item. No. 80074 | Item. No. 80076 | Item. No. 80077 | Item. No. 80078 | Item. No. 80079 | Item. No. 80080 |
| 12. Zero Pressure Weather Cap discharges fumes vertically away from roof. Self-draining. Minimal static pressure loss. This is the recommended weather cap. | Item. No. 82350 “A”=16” | Item. No. 82352 “A”=24” | Item. No. 82354 “A”=32" | Item. No. 82356 “A”=40" | Item. No. 82358 “A”=48” | Item. No. 82359 “A”=56” |
| 13. Round to Round Transition to smaller duct diameter. | Item. No. 82613 4"- 6" | Item. No. 82615 6"- 8" | Item. No. 82617 8"- 10" | Item. No. 82619 10"- 12" | Item. No. 82620 12"- 14" | Item. No. 82621 14"- 16" |
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Contact HEMCO to configure the appropriate ductwork and venting components for your laboratory ventilation system. Our team can assist with sizing, layout, and system integration.
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