Description

The API 6A Demco DM Mud Gate Valves or Mud Valves are engineered for the rigorous requirements of abrasive and erosive service conditions in oilfield applications, such as mud, cement, fracturing and water service. The DM Mud Gate Valves are mainly offered in 4 types of end connections: the Butt Welded connection, the Threaded connection, the Hammer Union connection, and the Flanged connection. The hammer union ends mud gate valves are mainly used for drilling mud circulating system in oil field, it is used to control the flowing and stopping of mud. The hammer union ends mud gate valve seat and gate are sealed by means of parallelled Metal to Metal Sealing. Mud Valves end connections vary by sizes and pressure ratings based on concrete oilfield application requirements.

Our API-6A DM Mud Gate Valves are available in sizes 2″, 3″, 4″, 5″ x 4″ and 6″ x 4″ and pressure ratings at 2000PSI, 3000PSI, 5000PSI, and 7500 PSI. The valves can be hard seal or soft seal. All of our DM Mud Gate Valves are strictly designed, manufactured, and tested in accordance with API-6A standards. They are suitable for both standard and H2S service. DM mud gate valve repair kits can also be supplied.

* Designed specifically for abrasive and erosive condition
* Gates available: Nickel-plated carbon steel, Monel, Aluminum Bronze or Stainless Steel
* Stainless or Carbon Steel Inserts with Nitrile or HNBR Elastomer
* Connection: Flange/Thread/Butt weld/Hammer Union
* Pressure ratings up to 5,000 psi in 2″, 3″, 4″, 5″ x 4″ and 6″ x 4″ Valve Sizes
* Working Temperature: -46°C ~ +121°C
* Sour Service Models to NACE MR-01-75
* Specification Level: PSL1 ~ PSL3
* Performance Requirement: PR1 ~ PR2
* Factory Pressure Tested in Accordance with API.6A

Material Class Body Bonnet Gasket Gate Seats Stem Seat Retainer T-Nut Balance Rod
AA 4130 4130 Carbon Steel CAD Plated 4140 HF 4140 HF 4130 17-4H 4130 4130
BB 4130 4130 316/304 SS 410 HF 410 QPQ, 410 HF 17-4PH 410 410 410
CC 410 410 316/304 SS 410 HF 410 QPQ, 410 HF 17-4 PH 410 410 410
DD-0.5* 4130 4130 316 SS 4140 HF 4140 HF 17-4 PH QPQ 17-4 PH 4130 410
DD-1.5 4130 4130 316 SS 4140 HF 4140 HF 4140 QPQ 410 4130 410
DD-360 4130 4130 316 SS 4140 HF 4140 HF 4140 QPQ 410 4130 410
DD-NL 4130 4130 316 SS 4140 HF 4140 HF 4140 QPQ 410 4130 410
EE-0.5* 4130 4130 316 SS 410 HF 410 HF 17-4 PH QPQ 17-4 PH 410 410
EE-1.5 4130 4130 316 SS 410 HF 410 HF 410 410 410 410
EE-360 4130 4130 316 SS 410 HF 410 HF Inconel 718 410 410 410
EE-NL (-200 to 2500F) 4130 4130 316 SS 410 HF 410 HF Inconel 718 410 410 410
EE-NL (-200 to 3500F) 4130 4130 316 SS 410 HF 410 HF Inconel 725 410 410 410
FF-1.5 410 410 316 SS 410 HF 410 HF 410 410 410 410
FF-360 410 410 316 SS 410 HF 410 HF Inconel 718 410 410 410
FF-NL (-200 to 2500F) 410 410 316 SS 410 HF 410 HF Inconel 718 410 410 410
FF-NL (-200 to 3500F) 410 410 316 SS 410 HF 410 HF Inconel 725 410 410 410
HH-NL (-200 to 2500F) 4130 w/Inconel 625 inlay in all wetted areas 4130 w/Inconel 625 inlay in all wetted areas Inconel 825 Inconel 718 HF Inconel 718 HF Inconel 718 Inconel 718 Inconel 718
QPQ		 Inconel 718
HH-NL (-200 to 2500F) 4130 w/Inconel 625 inlay in all wetted areas 4130 w/Inconel 625 inlay in all wetted areas Inconel 825 Inconel 725 HF Inconel 725 HF Inconel 725 Inconel 725 Inconel 725 QPQ Inconel 725