LZD-I,IILZS-I,II Manual single and double directional spiral gate valveDetailed product description：

LZD-I, II, LZS-I, II manual, unidirectional and bidirectional spiral gates (unidirectional spiral gates, bidirectional spiral gates) are the main control equipment for the flow and conveying volume of powder materials, crystalline granules, granular materials, and small block materials. Spiral gates (unidirectional spiral gates, bidirectional spiral gates) are widely used in industries such as metallurgy, mining, building materials, grain, chemical industry, etc. They are ideal equipment for controlling large flow changes, frequent opening and closing, and fast cutting.

Spiral gate (one-way spiral gate, two-way spiral gate) has a simple structure, flexible operation, light weight, no jamming, fast cutting, and is particularly suitable for the transportation and flow regulation of various solid materials and block shaped materials with a diameter of about 50. The installation of spiral gate (one-way spiral gate, two-way spiral gate) is not limited by angle. Easy to operate, able to adjust the opening at any time.

Spiral gates are used for the top, bottom, and import/export of warehouses in industries such as building materials, metallurgy, mining, electricity, chemical, glass, light industry, and grain. It is an ideal device for controlling large flow changes, frequent startup, and rapid shutdown.

Structural features:
The structure is simple, the operation is flexible, the weight is light, there is no obstruction, and the cutting is fast. It is particularly suitable for the transportation and flow adjustment of various non viscosity solids, powders, and particles smaller than Φ 10mm. The installation is not limited by angles, the operation is convenient, and the opening can be adjusted at any time. This valve has two operation modes: handwheel and sprocket. Type I is handwheel and Type II is sprocket. There are two structural forms: unidirectional and bidirectional, with LZD being unidirectional and LZS being bidirectional.

working principle:
It is mainly composed of components such as frame, gate, screw, nut, etc. By manually rotating the handwheel, the screw, screw nut, and gate move back and forth horizontally to achieve the purpose of opening and closing the gate.

LZD-I, IILZS-I, II manual single and double directional spiral gate valves (one-way spiral gate, two-way spiral gate) Main component materials and connection dimensions

Category	A×A	B×B	C×C	H	L	n-d	Weight
one-way	200×200	256×256	296×296	eight hundred and twenty	one hundred	8-Φ12	sixty-two
	250×250	306×306	346×346	nine hundred and thirty	one hundred	8-Φ14	seventy point five
	300×300	356×356	396×396	one thousand and fifty	one hundred	8-Φ14	eighty-one
	400×400	456×456	496×496	one hundred and forty	one hundred	12-Φ14	one hundred and fourteen
	450×450	510×510	556×556	one thousand four hundred and fifty	one hundred and twenty	12-Φ18	one hundred and thirty
	500×500	560×560	606×606	one thousand six hundred and ten	one hundred and twenty	16-Φ18	one hundred and forty-seven
bidirectional	600×600	660×660	706×706	one thousand eight hundred and thirty	one hundred and twenty	16-Φ18	one hundred and sixty-nine
	700×700	770×770	820×820	two thousand one hundred and thirty	one hundred and forty	20-Φ18	two hundred and thirty-six
	800×800	870×870	920×920	two thousand four hundred and forty	one hundred and forty	20-Φ18	three hundred and three
	900×900	974×974	1030×1030	two thousand six hundred and sixty	one hundred and sixty	27-Φ23	four hundred and twenty-four
	1000×1000	ten million seven hundred and forty-one thousand and seventy-four	1130×1130	two thousand eight hundred and seventy	one hundred and sixty	24-Φ23	six hundred and thirty-six
Instructions	LMD Unidirectional	I-Handwheel	If the distance from the ground is less than 1.7 meters, use a handwheel, and if it is greater than 1.7 meters, use a sprocket Chain section M=0.105X-113 (X is the distance between the center of the screw and the ground)