LoPro™ Low-profile Bellows-sealed Poppet Valves

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Overview

LoPro™ Vacuum Valves have a small footprint that fits easily into existing, and new, vacuum systems. LoPro™ Valves are extremely reliable, with a lifetime that can extend to 1,000,000 cycles in clean conditions. A formed stainless steel bellows prevents outgassing, virtual leaks, and particle entrapment between bellows convolutions that extends the valves life cycle over a conventional O-ring shaft sealed valve. The bellows' stroke length is optimized to assure a long cycle life while maintaining high conductance.

Please see LoPro Single Stage Valves on mks.com for additional configurations.

Improved pneumatic actuator design for ease of maintenance
Bellows-sealed single-stage isolation valve
1,000,000 cycles MTBF (clean conditions)

Compare	Model	Compatibility	rankScore	Flange Size	Configuration	Valve Actuation	Availability	Price	Brand
LPV1-25-AK-CNVS Poppet Valve, LoPro, NW25 ISO-KF, Angle Ports, Viton Seals, Pneumatic $443 In Stock	LPV1-25-AK-CNVS Poppet Valve, LoPro, NW25 ISO-KF, Angle Ports, Viton Seals, Pneumatic	UNIVERSAL	1.0	NW25	Angle	Pneumatic	In Stock	$443	MKS Instruments
LPV1-40-AK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Pneumatic, w/Limit Switch Contact Us	LPV1-40-AK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Angle Ports, Viton Seals, Pneumatic, w/Limit Switch	UNIVERSAL	1.0	NW40	Angle	Pneumatic	Contact Us		MKS Instruments
LPV1-40-AK-CNVS Poppet Valve, Bellows-sealed, NW40 ISO-KF, Angled Ports, Viton, Pneumatic $485 In Stock	LPV1-40-AK-CNVS Poppet Valve, Bellows-sealed, NW40 ISO-KF, Angled Ports, Viton, Pneumatic	UNIVERSAL	1.0	NW40	Angled Ports	Pneumatic	In Stock	$485	MKS Instruments
LPV1-40-AK-MNVN Poppet Valve, Bellows-sealed, NW40 ISO-KF, Angled Ports, Viton, Manual $430 In Stock	LPV1-40-AK-MNVN Poppet Valve, Bellows-sealed, NW40 ISO-KF, Angled Ports, Viton, Manual	UNIVERSAL	1.0	NW40	Angled Ports	Manual Knob	In Stock	$430	MKS Instruments
LPV1-40-IK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic, w/Limit Switch Contact Us	LPV1-40-IK-CLVS Poppet Valve, LoPro, NW40 ISO-KF, Inline Ports, Viton Seals, Pneumatic, w/Limit Switch	UNIVERSAL	1.0	NW40	Inline	Pneumatic	Contact Us		MKS Instruments
LPV1-40-IK-CNVS Poppet Valve, Bellows-sealed, NW40 ISO-KF, Inline Ports, Viton, Pneumatic $582 In Stock	LPV1-40-IK-CNVS Poppet Valve, Bellows-sealed, NW40 ISO-KF, Inline Ports, Viton, Pneumatic	UNIVERSAL	1.0	NW40	Inline Ports	Pneumatic	In Stock	$582	MKS Instruments
LPV1-40-IK-MNVN Poppet Valve, Bellows-sealed, NW40 ISO-KF, Inline Ports, Viton, Manual $527 In Stock	LPV1-40-IK-MNVN Poppet Valve, Bellows-sealed, NW40 ISO-KF, Inline Ports, Viton, Manual	UNIVERSAL	1.0	NW40	Inline Ports	Manual Knob	In Stock	$527	MKS Instruments
LPV1-50-AK-CLKS Poppet Valve, LoPro, NW50 ISO-KF, AnglePorts, Kalrez Seals, Pneumatic, w/Limit Switch Contact Us	LPV1-50-AK-CLKS Poppet Valve, LoPro, NW50 ISO-KF, AnglePorts, Kalrez Seals, Pneumatic, w/Limit Switch	UNIVERSAL	1.0	NW50	Angle	Pneumatic	Contact Us		MKS Instruments
LPV1-50-AK-CNVS Poppet Valve, Bellows-sealed, NW50 ISO-KF, Angled Ports, Viton, Pneumatic $667 In Stock	LPV1-50-AK-CNVS Poppet Valve, Bellows-sealed, NW50 ISO-KF, Angled Ports, Viton, Pneumatic	UNIVERSAL	1.0	NW50	Angled Ports	Pneumatic	In Stock	$667	MKS Instruments
LPV1-50-AK-MNVN Poppet Valve, Bellows-sealed, NW50 ISO-KF, Angled Ports, Viton, Manual $600 12 Weeks	LPV1-50-AK-MNVN Poppet Valve, Bellows-sealed, NW50 ISO-KF, Angled Ports, Viton, Manual	UNIVERSAL	1.0	NW50	Angled Ports	Manual Knob	12 Weeks	$600	MKS Instruments
LPV1-50-IK-CNVS Poppet Valve, Bellows-sealed, NW50 ISO-KF, Inline Ports, Viton, Pneumatic $764 In Stock	LPV1-50-IK-CNVS Poppet Valve, Bellows-sealed, NW50 ISO-KF, Inline Ports, Viton, Pneumatic	UNIVERSAL	1.0	NW50	Inline Ports	Pneumatic	In Stock	$764	MKS Instruments
LPV1-50-IK-MNVN Poppet Valve, Bellows-sealed, NW50 ISO-KF, Inline Ports, Viton, Manual $691 In Stock	LPV1-50-IK-MNVN Poppet Valve, Bellows-sealed, NW50 ISO-KF, Inline Ports, Viton, Manual	UNIVERSAL	1.0	NW50	Inline Ports	Manual Knob	In Stock	$691	MKS Instruments

LoPro™ Low-profile Bellows-sealed Poppet Valves

LoPro™ Low-profile Bellows-sealed Poppet Valves

Overview

Products

Specifications

Specifications

Product Comparison

LoPro™ Low-profile Bellows-sealed Poppet Valves

LoPro™ Low-profile Bellows-sealed Poppet Valves

Overview

Products

Specifications

Specifications