DRVP-8 ，單向閥

DRVP-8單向閥產(chǎn)品概述

DRVP-8單向閥是一種用于液壓系統(tǒng)的單向節(jié)流閥，主要用于控制油液單向流動并精確調(diào)節(jié)流量。該產(chǎn)品采用錐閥結(jié)構(gòu)設(shè)計(jì)，具有壓力損失小、密封性能好的特點(diǎn)，適用于需要防止介質(zhì)倒流的管路系統(tǒng)。其核心功能是允許油液從P口向A口自由流動，反向流動時(shí)則通過彈簧力自動關(guān)閉閥口，實(shí)現(xiàn)單向截止。閥體材質(zhì)通常為鑄鐵或不銹鋼，可適配礦物油或磷酸酯等液壓油介質(zhì)，工作溫度范圍為-20℃至+80℃。產(chǎn)品通徑為8mm，螺紋接口規(guī)格為G1/4，符合常規(guī)液壓系統(tǒng)連接需求。126

產(chǎn)品結(jié)構(gòu)與工作原理

該閥由閥體、帶自鎖功能的調(diào)節(jié)旋鈕、柱塞及單向閥組件構(gòu)成。正向流動時(shí)，通過旋轉(zhuǎn)調(diào)節(jié)旋鈕改變柱塞與閥套間節(jié)流口面積實(shí)現(xiàn)流量控制；反向流動時(shí)單向閥自動開啟形成自由回流通道。旋鈕上的彩色刻度可直觀顯示流量調(diào)節(jié)狀態(tài)，三角形標(biāo)記開度越大表示流量越大。特殊設(shè)計(jì)的涂色定位螺釘可固定設(shè)定流量值，便于重復(fù)調(diào)節(jié)時(shí)快速復(fù)位。產(chǎn)品采用內(nèi)螺紋連接方式（M14×1.5），安裝位置不受限制，水平或垂直管路均可適用。51221

技術(shù)特點(diǎn)與優(yōu)勢

DRVP-8單向閥具有多重技術(shù)特點(diǎn)：其錐閥結(jié)構(gòu)確保關(guān)閉狀態(tài)下無泄漏，靜態(tài)密封性能優(yōu)異；調(diào)節(jié)機(jī)構(gòu)采用耐磨材料制造，可承受最高35MPa的工作壓力；雙向流動設(shè)計(jì)使得正向節(jié)流與反向自由流通功能集成于單一閥體。產(chǎn)品適用于需要精確控制執(zhí)行元件速度的場合，如工程機(jī)械的液壓缸調(diào)速、機(jī)床進(jìn)給系統(tǒng)等。與普通節(jié)流閥相比，該型號在完全關(guān)閉狀態(tài)下可作為截止閥使用，實(shí)現(xiàn)管路系統(tǒng)的雙重功能。閥體表面經(jīng)防銹處理，適配粘度范圍2.8-500mm²/s的各類液壓油介質(zhì)。81422

典型應(yīng)用場景

該產(chǎn)品廣泛應(yīng)用于工業(yè)自動化領(lǐng)域的液壓控制系統(tǒng)，常見于注塑機(jī)鎖模機(jī)構(gòu)、壓鑄機(jī)頂出裝置、冶金設(shè)備油路等場景。在泵出口處可作為背壓閥使用，在多執(zhí)行元件系統(tǒng)中能有效防止壓力波動引起的干擾。對于需要保持油路壓力的系統(tǒng)，其可靠的閉鎖性能可避免因負(fù)載變化導(dǎo)致的壓力損失。產(chǎn)品通過優(yōu)化流道設(shè)計(jì)降低壓力脈動，使執(zhí)行機(jī)構(gòu)運(yùn)行更平穩(wěn)，特別適合對運(yùn)動精度要求較高的數(shù)控設(shè)備。111826

Product Introduction in English

The DRVP-8 check valve is a hydraulic one-way flow control valve combining throttle and check functions. With 8mm nominal diameter and G1/4 threaded ports, it features a poppet design that minimizes pressure drop while ensuring zero-leakage sealing in closed position. The valve permits free flow from port P to A, and blocks reverse flow automatically via spring-loaded mechanism. Its adjustable throttle screw with color-coded scale allows precise flow regulation from full open to complete shut-off, providing both speed control and positive shut-off capabilities. 3713

Technical Specifications

Constructed with cast iron or stainless steel body, this valve operates within -20°C to +80°C temperature range, compatible with mineral oils and phosphate esters. The 35MPa maximum working pressure rating makes it suitable for high-pressure hydraulic circuits. The integrated locking nut on adjustment knob maintains preset flow rate, while the bidirectional design enables free return flow when needed. Standard connection includes M14×1.5 internal threads for compact piping layout. The optimized flow path reduces turbulence for stable actuator movement. 4919

Performance Features

Key advantages include: 1) Precision flow control through micrometer-style adjustment; 2) Positive sealing with hardened seat for zero backflow; 3) Visual flow indication via graduated color marker; 4) Dual-function operation as throttle valve and shut-off valve. The corrosion-resistant construction ensures long service life in harsh industrial environments. Typical applications encompass injection molding machines, die casting equipment, CNC hydraulic systems where reliable unidirectional flow and adjustable speed control are required. 101520

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