Atlas Copco 1604620500 Intake Valve Pin

Atlas Copco 1604620500 Intake Valve Pin là phụ tùng chính hãng Atlas Copco do Á Đông Group phân phối tại Việt Nam. Sản phẩm cam kết 100% chính hãng, phù hợp thay thế theo đúng mã, giao hàng nhanh và hỗ trợ kỹ thuật tra cứu mã phụ tùng.

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Thông tin chi tiết

Product Overview

The 1604620500 is a precision-ground valve pin that operates inside the unloader valve assembly of mobile diesel-driven air compressors . At just 47 mm long and 4 grams in weight, most technicians overlook this component during a parts order. Its function is not small. The 1604620500 controls the bypass air path that governs whether the compressor loads or idles. When the pin fails to seat or move freely, the entire intake control circuit loses responsiveness.

Atlas Copco categorizes this part under oil-free turbo compressors in one catalog system and under intake valve pins in another. The practical reality is that the 1604620500 serves the unloader valve assembly across a family of mobile compressor platforms, both oil-injected and oil-free. The part fits XAS series, XRVS series, XAVS series, and XRW series portable units.

Part Number Replacement History

The 1604620500 is the current active part number for a valve pin that Atlas Copco previously listed under 2252550800. This is a direct catalog number update, not a design revision. The pin geometry, material specification, and surface finish remain the same. When you order the 1604620500, you receive the identical component that once shipped under the older number. No dimensional adjustment, no adapter kit, and no special installation procedure is required for the transition.

Location in the Compressor System

The 1604620500 sits inside the unloader valve body on the compressor intake side. The unloader valve assembly typically includes a connector, a piston, the valve pin itself, a gasket, a nozzle, and a seal — seven components that work as a coordinated unit. Among these, the 1604620500 is the moving element that physically opens and closes the bypass port. The other components provide mounting, sealing, and flow direction.

Atlas Copco Intake Valve Pin 1604620500 (1)

Technical Specifications

Physical Dimensions

Parameter

Specification

Length

47 mm

Diameter (Width)

13 mm

Height (Flange)

13 mm

Net Weight

4 g

Country of Origin

Italy

Manufacturing Precision

Weighing only four grams, the 1604620500 comes from a manufacturing process that holds tolerances tighter than what a standard machine shop produces for general-purpose pins. Atlas Copco likely holds the outer diameter within ±0.01 mm to ensure a sliding fit inside the unloader valve bore without excessive clearance. Clearance that is too tight causes binding. Clearance that is too loose allows control air to bypass around the pin instead of being directed by it.

The surface finish on the 1604620500 is another critical quality factor. A surface roughness of Ra 0.4 µm or finer reduces friction against the valve bore wall, extends seal life, and prevents micro-galling that would gradually roughen the sliding interface. Generic replacement pins often skip the finish-grinding step. The pin may measure correctly with calipers but develop surface scoring within the first hundred operating hours.

Material Characteristics

Atlas Copco manufactures the 1604620500 from hardened alloy steel chosen for three simultaneous demands: wear resistance under constant cycling, corrosion resistance against compressor condensate and oil vapor, a

Catalog PDF

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Á Đông Group – Nhà phân phối phụ tùng máy nén khí Atlas Copco chính hãng tại Việt Nam. Tư vấn kỹ thuật, tra cứu mã phụ tùng, giao hàng nhanh & bảo hành toàn quốc. Website: sullivan-palatek.vn