$50Million of Valve Inventory available Exclusively through Distribution. 500 Years Technical Valve Experience. 24/7 Sales & Technical Support. Trunnion & Floating Ball Valves, Gate, Globe and Check Valves DHV - Pibiviesse - Himark Altek Supply delivers the best Customer Experience, as a user of our products or as a reseller. Always stand behind the products we sell, and we'll never break trust with our Distributors by selling around them. Never.