TTS 15800 MANUAL DIRECTIONAL HYDRAULIC CONTROL VALVE. This product data sheet is originally written in English. Lever Actuated Hydraulic Directional Valve. General Information about the Product. TTS Lever Actuated Directional Valve 15800. New (Other) – No Box. You’ll get exactly what you see in pictures. We’ll try to get back to you as soon as possible. If you are happy with our product do leave us with your feedback. Everything can be solved through conversation, so reach out to us for any discussion. Your Feedback is important to us; if you are not happy for any reason, please cont.