Overpressure valves KNTM overpressure valves

Name: KNTM overpressure valves
Brand: КВЗ

Brand: КВЗ

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Product Code: ID38000

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KNTM overpressure valves are designed for installation on ventilation system ducts to automatically maintain a constant overpressure of a specified value in adjacent rooms and ensure air flows from one room to another in only one direction.

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KNTM overpressure valves

Description

KNTM Overpressure Valves
KNTM overpressure valves are designed for installation on ventilation system ducts to automatically maintain a constant overpressure of a specified value in adjacent rooms and ensure air flows from one room to another in only one direction. They are available in standard design (KNTM) for use in clean air environments of ventilation systems and in corrosion-resistant design (KNTMA) – for use in environments containing aggressive vapors, including diesel engine exhaust gases.

Overall and connection dimensions of KNTM valves

Model	Dy, mm	D, mm	D1, mm	B, mm	C, mm	H, mm	L1, mm	L, mm	Weight, kg
KNTM-100	100	200	175	145	185	230	105	125	4.2
KNTM-150	150	260	230	185	250	310	140	155	7.6
KNTM-200	200	320	280	205	285	360	170	185	8.7
KNTM-250	250	385	330	305	430	455	190	210	9.4
KNTM-300	300	385	356	305	430	455	190	210	9.9

Technical specifications of KNTM valves

Model	Nominal bore diameter, mm	Valve design	Automatic actuation range, Pa (mm H₂O)	Fixed counterweight position, Pa (mm H₂O)	Vertical installation	Tightness at 392 Pa (40 mm H₂O)
KNTM-100	100	General-purpose	49–196 (5–20)	49±1 (5±1)	Yes	Ensured
KNTM-150	150	General-purpose	49–196 (5–20)	98±1.5 (10±1.5)	Yes	Ensured
KNTM-200	200	General-purpose	49–196 (5–20)	147±2 (15±2)	Yes	Ensured
KNTM-250	250	General-purpose	49–196 (5–20)	196±2 (20±2)	Yes	Ensured
KNTM-300	300	General-purpose	49–196 (5–20)	196±2 (20±2)	Yes	Ensured

Main design elements:

Body
Blade
Counterweight lever
Weld-on flange
Shut-off mechanism

Overall dimensions of KNTM overpressure valves

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