Overview Reviews Product Description Designed for higher speeds at 4000 rpm, this counter-clockwise governor maintains compliance with ATEX zones. Product Videos Custom Field Product Reviews Write a Review Write a Review × WOODWARD TG611-17, Screw, 4000 rpm, CCW, ATEX, w/ OTD (8516-187) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *