世伟洛克®针阀和计量阀
针形阀在整体式阀帽和联合式阀帽等设计中采用多种阀杆设计、流道型式、材料和端接，可为各种应用提供可靠的流量控制。可以对计量阀进行精细调整，以精确控制低压或高压以及低流量、中流量或高流量应用中的系统流量。
View Needle and Metering ValvesSwagelok needle valves are available in a variety of configurations to allow users to find options that suit their performance needs and system designs. These needle valves provide reliable operation from basic, low-pressure instrumentation applications to corrosive, high-temperature, high-pressure applications. Swagelok needle valves are available with flow coefficients ranging from 0.12 to 2.4. They are also available with low emissions (Low-E) certification per API 624.
Swagelok metering valves are also available in a variety of configurations, are suitable for low- and high-pressure use, and can deliver accurate flow rate control in analytical, instrumentation, and research applications. They provide fine adjustments in applications demanding precise levels of flow, delivering flow coefficients from 0.004 to 0.16. Various handle options for metering valves allow for repeatable flow adjustments, enhanced control for setting flows, or flow setting adjustment with a screwdriver in low-pressure applications.
类别
针阀和计量阀目录
查找详细的产品信息，包括结构材料、额定压力和温度、选购件及附件。
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
棒轴形直通的节流孔，能获得最大流量, 工作压力可达 6000 psig (413 bar), 填料在螺纹以下, 可更换的阀座和阀杆头设计
动载荷密封系统; 设计紧凑; 工作压力高达 6000 psig (413 bar); 温度高达 315°C (600°F)
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
直通型流量系数 (Cv) 自 0.004 至 0.16; 可用于低压和高压; 可供应可重复游标刻度手柄; 黄铜和 316 不锈钢材料
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
压力达 3000 psig (206 bar); 用 PEEK 阀杆尖时，温度达 450°F (232°C); 不锈钢、黄铜和合金 400 材料
特点：限制对手动执行阀的使用；；锁定附件符合 OSHA 锁定/挂牌，Standard 29 CFR Part 1910.147，危险能源控制锁定；亮橙安全色可以提高能见度。也提供其它颜色。
世伟洛克为您精心准备的产品、服务和解决方案
How to Select the Right Valves for Your Industrial Fluid System
Learn how to apply the practical STAMPED method to select the valves most suited to your industrial fluid or sampling system design applications.
Minimize the Costs of Fugitive Emissions with Low-E Valves
Fugitive emissions are a growing concern in the chemical and petroleum refining industry. Certified low-emissions (Low-E) valves can protect your facility and bottom line. Learn what they are, how they are tested, and how they can help you in this post.
How to Isolate Industrial Fluid Systems with Block Valves
The isolation of industrial fluid system lines prior to maintenance is vital to plant safety. One of the safest ways to isolate a fluid system line is to install two block valves. Learn how to design proper configurations for your system.
One New Valve. Three Reasons It Could Change Semiconductor Manufacturing
Find out how the latest innovation in atomic layer deposition (ALD) valve technology is changing the game for high-tech semiconductor manufacturers.
Needle Valves
Swagelok needle valves are available in general utility service, integral-bonnet, screwed-bonnet, forged-body, toggle, severe-service union-bonnet, instrumentation blowdown, compact gauge, non-rotating stem, and rising plug valve configurations with pressure ratings up to 45 000 psig (3100 bar). Flow patterns include straight, angle, and cross, with actuation options including both manual and pneumatic.
Metering Valves
Swagelok metering valves deliver accurate flow rate control 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.