FIELD: equipment for metered delivery of foam materials. SUBSTANCE: spray gun comprises adapter for connection of pressure reservoir containing displacing agent and foam generating agent, and control lever for releasing the foam material. Sealing member closing the metering chamber with a certain amount of yet incompletely expanded foam material at the side of the adapter is connected by control member with control lever. Closing element is capable of shutting off the spray gun when the sealing member is open and is connected by control member with control lever with a provision for synchronous control together with the sealing member. EFFECT: improved design. 13 cl, 5 dwg
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