Does the Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates require a bleed/vent port to prevent downstream overpressure?

Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates does require a bleed/vent port to prevent downstream overpressure. The product description states the valve does not vent the pneumatic system; in its default (needle-restricted) state it only meters inlet air to the outlet and when electrically overridden it opens full bore.there is no dedicated venting path to atmosphere. Without a bleed/vent port or an alternative downstream venting method, trapped volume or downstream components could experience overpressure during transitions or when supply remains pressurized but the valve closes. Therefore, to avoid downstream overpressure you must provide a bleed/vent port or an external venting arrangement in the system design.

Can the Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates be installed directly before sensitive actuators?

Yes. Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates can be installed directly before sensitive actuators, provided the following conditions are met: the valve is used as a soft-start (inlet â needle valve in nonâpiloted state) to limit initial pressure rise; supply pressure â¤10 bar; ambient/medium temperature â¤+50Â°C; flow and pressure drop are compatible with actuator requirements (specified flow 2000 l/min at 6 bar, Îp=1 bar). Note the valve does not vent the pneumatic system, so downstream pressure release must be managed elsewhere. Ensure correct electrical control/pilot supply and appropriate mounting without end plates per manufacturer installation guidelines.

Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIR®, without end plates

Q: How does the Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates affect actuator response time?

The Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIRÂ®, without end plates slows actuator pressurization during startup by routing inlet air through a needle (restricted) passage until an external electrical control signal overrides the restriction and opens the full crossâsection. As a result: - Initial response: actuators receive a limited, gradual flow (2000 l/min rated at 6 bar inlet, Îp = 1 bar, but significantly throttled by the needle), which reduces acceleration and peak forcesâprotecting pistons, seals and mechanisms from sudden pressure spikes. - Switchover response: when the external electrical pilot signal is applied, the valve shifts rapidly to full bore, allowing full flow and normal actuator speed. The overall delay between command and full flow equals the electrical actuation time plus any mechanical transition time of the valve. - No venting: because the valve does not vent the downstream circuit, it wonât actively depressurize actuators on shutoff; actuators retain pressure and respond according to downstream leakage and system bleed. - Practical impact: startup motion is smoother and safer; however, if fast full-speed response on initial actuation is required, the inherent throttling before the electrical override will lengthen the effective time to reach full actuator speed until the pilot signal is applied. In short: the VAP 100 soft-start mode intentionally reduces initial actuator response speed via a needle restriction, then restores full response instantly upon receipt of the external electrical pilot signal; the timing is governed by the needle-induced flow limitation and the valveâs electrical/mechanical actuation speed.

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Electric and electric soft-start valve with external pilot power supply, VAP 100 series SKILLAIR®, without end plates

Additional information

Maximum operating temperature [°C]	50

Soft start valve, used for the safe introduction of air into the pneumatic system, protecting actuators from sudden pressure increases. In the version with electric control, without pilot pressure, air flows from the inlet connection to the outlet through a needle valve. Upon receiving an external control signal, electrical, the valve is overridden and air flows through the full cross-section of the valve. The valve does not vent the pneumatic system. Size: 100. Supply pressure: up to 10 bar. Operating temperature: up to +50°C. Flow: 2000 l/min (at an inlet pressure of 6 bar Δp = 1 bar).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
MW-3271600A	Electric soft start valve VAP ELPN 100 (SKILLAIR) without end plates.	-	-	In stock	0 zł		Enquiry

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Soft start valve, used for the safe introduction of air into the pneumatic system, protecting actuators from sudden pressure increases. In the version with electric control, without pilot pressure, air flows from the inlet connection to the outlet through a needle valve. Upon receiving an external control signal, electrical, the valve is overridden and air flows through the full cross-section of the valve. The valve does not vent the pneumatic system. Size: 100. Supply pressure: up to 10 bar. Operating temperature: up to +50°C. Flow: 2000 l/min (at an inlet pressure of 6 bar Δp = 1 bar).