Slab Gate Valve

Detailed parameter

Slab Gate Valve The slab-gate non-rising-stem gate valves manufactured by Yancheng Deyi Petroleum Machinery Co., Ltd. are available in temperature classes L, P, R, S, T, and U specified in API 6A. Gate valves to be used in the 350℉ or 650℉ high temperature can be supplied on request. Fire-proof gate valves also can be supplied to API 6A. Gate valves manufactured by our company are available in pressure ratings ranging from 2000psi, 3000psi, 5000psi, 10000psi and 15000psi, material classes from AA through FF, product specification levels (PSL) from 1 through 3 and performance requirement (PR) 1. Features: 1. Simple structure and renewable gate and seat assembly. 2. One-piece and double-acting gate with long service life. 3. Both thrust bearings with large load capacity and composite rubber-plastic stem lip packing minimize operational torque. 4. Bearing cap is provided with a grease cup to make it easy to inject lubricating grease in the field. 5. Threaded packing gland allows removal of bearings and stem packing under line pressure. 6. Both the bolted bonnet and modern bonnet seal ring provide simple structure and reliable sealing. 7. The sealing surfaces of the gate and seat are hardfaced for wear and corrosion resistance. 8. Wave springs are installed between the body and seat and between the gate and seat. The gate and seat still maintain a positive metal to metal sealing under low pressure. Note: Floating gate design requests the hand wheel to be backed off 1/4 turn after its rotation can go no further. Parts List: Item Component Qty Material Remark 1 Body 1 4130   2 Bonnet Seal Ring 1 1010   3 Gate 1 4130   4 Gate T-Nut 1 5140   5 Bonnet 1 4130   6 Stem Lip Packing 2 NBR   7 Packing Ring 3 410   8 Packing Gland 1 4130   9 Bonnet Stud 8 4130   10 Bonnet Nut 8 5140   11 Bearing 2 Assy.   12 Stem 1 410   13 Split Bushing 1 5140   14 Bearing Cap 1 5140   15 O-Ring 1 NBR   16 Hand wheel 1 1035   17 Washer 1 1035   18 Screw 1 1035   19 Oil Cup 1 Assy.   20 Grease Fitting 1 Assy.   21 O-Ring 4 NBR   22 Seat 2 4130   23 Wave Spring 2 410