Full Open Spring Safety Valve PN25 (A412F-25P)

Production Standard:

1. The design according to HG3157-2005

2. Flange dimensions according to customer’s standard

3. Casting according to GB/T 12230-2015

PRODUCT DESCRIPTION

Size Specification

Size (inch)ΦAΦBΦCΦDEfn-ΦdΦJΦGL1L2
294125160352034-Φ187010099.5291
3131190235532448-Φ2397.5160125349
417622027068264.58-Φ27162186123.5281
2220160200532448-Φ1898125132358


Material List

ITEMPARTSMATERIAL
1Stem 20Cr13
2Lock NutA2-70
3Thick NutA2-70
4Spring Seat 20Cr13
5     Ball-Face Washer20Cr13
6Spring 50CrVA
7BodyCF8/CF8M
8Disc Nut20Cr13
9Disc Ball-Face Washer20Cr13
10SeatPTFE
11Disc06Cr19Ni10
12Disc Holder20Cr13
13Stop Screw45
14Valve CoverWCB
15       Safety CoverNBR
16Cruciform Slot ScrewCS
17Stainless Steel Line12Cr18Ni9
18Slotted NutA2-70
19Holding ScrewCS
20HingeSS/CS
21Name Plate Al
22Lead SealingPb


Full Open Spring Safety Valve PN25 (A412F-25P)

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