Swagelok® Needle and Metering Valves
Needle valves provide reliable flow control for a range of applications using a variety of stem designs, flow patterns, materials, and end connections in designs such as integral-bonnet and union-bonnet. Metering valves provide the ability to make fine adjustments to accurately control system flow in low- or high- pressure, and low-, medium-, or high- flow applications.
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Needle and Metering Valves Catalogs
Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.
直通型和角型; 不锈钢和碳钢阀体材料; 压力达到 6000 psig (413 bar); 使用 PTFE 填料时，温度可高达 232°C (450°F); 使用石墨填料时, 温度可高达 343°C (650°F)
不锈钢结构, 无旋转球头和旋塞头阀杆设计, 棒轴形直通孔 (旋塞头设计), 延伸阀体获得隔热距离, 1/2 和 3/4 in. 外螺纹至 1/2 in. NPT 内 螺纹端接, 1/2 in. 内螺纹标准压力表接口, 选用 160 规范公称管壁或更厚以加强阀 进口接头强度, 标准的阀帽定位板
工作压力高达 10 000 psig (689 bar); 使用 PTFE 填料时，温度范围可从 –53 至 232°C (–65 至 450°F)； 使用 Grafoil® 填料时，温度可高达 648°C (1200°F); 316 不锈钢；合金 400、20、600 和 C-276 以及钛材料
特点：工作压力最高可达 10 000 psig (689 bar)；使用 PTFE 填料时，温度范围可从 –65 到 450°F（–53 到 232°C）；使用 Grafoil® 填料时温度最高可达 1000°F (537°C)；合金 625、825、2507 和 6 钼材料
特点：高纯度 PFA 材料；工作压力高达 180 psig (12.4 bar)；温度高达 300°F (148°C)；1/4、3/8 和 1/2 英寸世伟洛克® PFA 卡套管接头端接
特点：316 不锈钢结构；温度高达 1000°F (537°C)；中压 (MP) 接头，尺寸范围 —1/4 到 1 英寸，压力额定值 — 高达 20 000 psig (1378 bar)；高压 (HP) 接头，尺寸范围 — 1/4 到 9/16 英寸，压力额定值 — 高达 60 000 psig (4134 bar)；NACE® MR0175/ISO15156 合规性
特点：316 不锈钢材料；联合阀帽结构，安全可靠；Grafoil® 填料以确保高温性能；世伟洛克®卡套管接头、内螺纹 NPT，以及卡套管或公称管承插焊端接
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Needle and Metering Valves
Needle Valves
Needle valves provide reliable and consistent flow control, are offered in a variety of stem designs, materials, sizes, and end connections, and have been engineered to withstand corrosive and extreme conditions. General utility service, integral-bonnet, screwed-bonnet, forged-body, toggle, severe-service union-bonnet, instrumentation blowdown, compact gauge, non-rotating stem, and rising plug valves are available with flow coefficients ranging from 0.12 to 2.4 and pressure ratings up to 45000 psig (3100 bar). Flow patterns include straight, angle, and cross, with actuation options including both manual and pneumatic.
Metering Valves
Metering valves deliver accurate flow rate control in analytical, instrumentation, and research applications, are suitable for low- and high-pressure situations, provide fine adjustments for precision applications with flow coefficients from 0.004 to 0.16 for low-, medium-, and high-flow applications. Flow patterns include straight, angle, cross, and double with pressure ratings up to 5000 psig (344 bar). Knurled, round, vernier, slotted, and adjustable-torque handle options allow for repeatable flow adjustments, enhanced control for setting flows, or flow setting adjustment with a screwdriver in your low-pressure applications.