手动方型插板阀产品概述
螺旋闸门是一种粉料、晶粒料、颗粒料及小块物料的流量或输送量的主要控制设备，广泛应用于矿山、粮食等行业控制流量变化或迅速切断（特殊直径≤50mm）。
技术参数范围
公称通径：200×200~1000×1000
适用温度：-10~+200℃
连接法兰：GB/T9113、JB/T79
主体材料：WCB、Q235A、304、316、304L、316L
密封型式：硬密封、软密封
配套附件：安装法兰
注：可来图来样定作非标的螺旋闸门
Product introduction
Square Knife gate valve Screw valve is a kind of primary device for controlling flow or flow rate of powder,grain,partcle,ａnd small piece material.It is widely used for such sectors including mining,grain,etc.For regulating flow or cutting rapidly(special material diameter=50).
Technical Parameter Range
Nominal diameter:200×200、....、1000×1000
Suitable temperature:-10~+200℃
Flange drilling:GB/T9113、JB/T79
Main materials:WCB、Q235A、304、316、304L、316L
Seal type:硬密封、软密封
Accessories:Flange
Note: Non-standard screw gate valve could be customized based on drawing or sample.

主要外形及连接尺寸Profile and connection dimension				单位Unit:mm
类别Category	A×A	B×B	C×C	L	H	Do	n-d
单向 One-way	200×200	256×256	296×296	100	820	300	8-φ12
	250×250	306×306	346×346	100	930	340	8-φ14
	300×300	356×356	396×396	100	1050	380	8-φ14
	400×400	456×456	496×496	100	1140	445	12-φ14
	450×450	510×510	556×556	120	1450	530	12-φ18
	500×500	560×560	606×606	120	1610	580	16-φ18
双向 Two-way	600×600	660×660	706×706	120	1830	450	16-φ18
	700×700	770×770	820×820	140	2130	450	20-φ18
	800×800	870×870	920×920	140	2440	450	20-φ18
	900×900	974×974	1030×1030	160	2660	450	24-φ23
	1000×1000	1074×1074	1130×1130	160	2870	450	24-φ23
说明 Specification	LMD-单向 LMD one-way	I-手轮 I hａnd wheel	链条节数M=0.105×-113（×是丝杆中心离地面高度）距地面小于1.7米用于手轮大于1.7米用链轮 Number of chain nodes M=0.105×-113 (×means the distance of lead screw center from surface);use hａnd wheel if the height is less than 1.7m;use chain wheel if the height is more than 1.7m.
	LMD-双向 LMD two-way	II-链条 II chain