Operating in a variety of sectors, we are a leading supplier to the Offshore Oil and Gas industry for topside, subsea and downhole applications where quality, reliability and safety are critical.
With an extensive range of standard products and a bespoke design service we aim to provide the solutions for your applications.
英国BIS阀门有限公司成立于1971年，主要提供工业流体控制产品，作为一个专业的流体控制专家，不断的为客户提供优质的产品与服务。针对高压液体和气体，公司不断的研发一系列的小口径不锈钢压力阀，在石油，天然气工业，海底和井下应用非常广泛。
BIS液压元件：电磁阀、计量阀，3位换向阀、4位换向阀、止回阀，单向阀、溢流阀、流量控制阀、过滤器、压力传感阀、泵，执行器等。
We offer a comprehensive range of safety relief and relief valves for use on a wide range of media, from low pressure valves that vent to atmosphere, to high pressure （1379 bar, 20,000 psi） piped return valves. Typically, low pressure valves offer a pop-open style characteristic, while higher pressure valves offer proportional or metering style operation. BiS relief valves are CE marked to denote approval as Category IV safety accessories under the 97/23/EC Pressure Equipment Directive. Many options are available, including cartridge and manifold mounted versions, and many valves are available in exotic materials via the factory, including monel, inconel, hasloy and titanium.
SAFETY RELIEF VALVE （L.P.） （S25）
1/4" Stainless Steel Vent to Atmosphere Style Safety Relief Valve for Set Pressures from 0.7 to 40 bar, with Liquid or Gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （S37）
3/8" Stainless Steel Vent to Atmosphere Style Safety Relief Valve for Set Pressures from 0.7 to 40 bar, with Liquid or Gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （S50）
1/2" Stainless Steel Vent to Atmosphere Style Safety Relief Valve for Set Pressures from 0.7 to 40 bar, with Liquid or Gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （S75）
3/4" Stainless Steel Vent to Atmosphere Style Safety Relief Valve for Set Pressures from 0.7 to 40 bar, with Liquid or Gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （S100）
1" Stainless Steel Vent to Atmosphere Style Safety Relief Valve for Set Pressures from 0.7 to 18 bar, with Liquid or Gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （SM25UF-RG）
Low Flow Stainless Steel Vent to Atmosphere Style Safety Relief Valve with Relieving Gear for set pressures from 0.7 to 19 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （TS25）
1/4" Stainless Steel Safety Relief Valve for set pressures from 0.7 to 40 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （TS37）
3/8" Stainless Steel Safety Relief Valve for set pressures from 0.7 to 40 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （TS50）
1/2" Stainless Steel Safety Relief Valve for set pressures from 0.7 to 40 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （TS75）
3/4" Stainless Steel Safety Relief Valve for set pressures from 0.7 to 40 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
SAFETY RELIEF VALVE （L.P.） （TS100）
1" Stainless Steel Safety Relief Valve for set pressures from 0.7 to 28 bar, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
CARTRIDGE RELIEF VALVE （L.P.） （TS25C）
1/4" Stainless Steel Cartridge Style Safety Relief Valve for incorporation into manifolds, where low set pressures are required. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （HS25）
1/4" Stainless Steel Vent to Atmosphere Style Relief Valve for set pressures from 400 to 2,000 psi, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （HTS25）
1/4" Stainless Steel Relief Valve for set pressures from 400 to 2,000 psi, with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL25）
1/4" Stainless Steel Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL37）
3/8" Stainless Steel Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL25-G）
1/4" Stainless Steel Relief Valve with Soft Seats for pressures up to 6,000 psi with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL37-G）
3/8" Stainless Steel Relief Valve with Soft Seats for pressures up to 6,000 psi with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
CARTRIDGE RELIEF VALVE （H.P.） （RL25C）
1/4" Stainless Steel Cartridge Style Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL25M）
1/4" Stainless Steel Manifold Mounted Style Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL50）
1/2" Stainless Steel Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL50-G）
1/2" Stainless Steel Relief Valve with Soft Seats for pressures up to 6,000 psi with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL50M）
1/2" Stainless Steel Manifold Mounted Style Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL75）
3/4" Stainless Steel Relief Valve for pressures up to 15,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL75-G）
3/4" Stainless Steel Relief Valve with Soft Seats for pressures up to 6,000 psi with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
CARTRIDGE RELIEF VALVE （H.P.） （PRV75C）
3/4" Stainless Steel Cartridge Style Relief Valve for pressures up to 6,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL100）
1" Stainless Steel Relief Valve for pressures up to 3,000 psi. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
RELIEF VALVE （H.P.） （RL100-G）
1" Stainless Steel Relief Valve with Soft Seats for pressures up to 3,000 psi with liquid or gas. Approved as a Safety Accessory to Category IV of the Pressure Equipment Drective 97/23/EC.
