Model LFB – Stainless Steel Case | Brass Wetted Parts
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250LFB10 Diagram |
251 LFB 19 Diagram |
Specifications of Glycerin Filled Pressure Gauge:
| Case | 304 Stainless Steel |
|---|---|
| Dial | White aluminum with psi graduations in black and kPa graduations in blue |
| Ring | 304 stainless steel, hermetically sealed or bayonet style (model BAY) |
| Lens | Polycarbonate |
| Pointer | Anodized black aluminum |
| Connection | 1 ½ in (40 mm) 1/8 in nptm bottom or center back, 2 ½ in (63 mm) ¼ in nptm bottom or center back, 4 in (100 mm) ¼ in nptm bottom or lower back |
| Wetted parts | Brass |
| Bourdon tube | Phosphor bronze |
| Maximum process and ambient temperatures |
-40 to 150°F / -40 to 65°C dry, 32 to 160°F / 0 to 70°C glycerin filled |
| Operating pressure | Maximum 75 % of full scale value |
| Overpressure limit | 25 % over full scale value |
| Accuracy | ASME B40.100(B40.1), Grade B ± 2 % Applications |
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401 LFB 15 |
401LFB19 – BAY |
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250 LFB 14 BAY |
251 LFB BAY |
Dimensions as per Diagram
| Ø | Connection | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|
| 1.5 in (40 mm) hermetically sealed | bottom | 2.43 in (61.7 mm) | 1.84 in (46.7 mm) | 1 in (25.4 mm) | 1.6 in (40.6 mm) | 0.30 in (7.6 mm) | 7/16 hex. (11 mm) | ⅛ in nptm |
| center back | 1.75 in (44.5 mm) | 1.84 in (46.7 mm) | 1 in (25.4 mm) | 1.6 in (40.6 mm) | 0.8 in (20.3 mm) | 7/16 hex. (11 mm) | ⅛ in nptm | |
| 2.5 in (63 mm) hermetically sealed | bottom | 3.45 in (87.6 mm) | ||||||
| “ | “ | “ | “ | “ | “ | “ | 1/4 bspp | |
| center back | 2.16 in (54.9 mm) | 2.7 in (68.5 mm) | 1.16 in (29.4 mm) | 2.4 in (60.9 mm) | 1.2 in (31 mm) | 9/16 hex. (14 mm) | ¼ in nptm | |
| 2.5 in (63 mm) bayonet | bottom | 3.45 in (87.6 mm) | 2.74 in (69 mm) | 1.18 in (30 mm) | 2.4 in (60.9 mm) | 0.37 in (9.4 mm) | 9/16 hex. (14 mm) | ¼ in nptm |
| center back | 2.12 in (54.9 mm) | 2.74 in (69 mm) | 1.18 in (30 mm) | 2.4 in (60.9 mm) | 1.22 in (31 mm) | 9/16 hex. (14 mm) | ¼ in nptm | |
| 4 in (100 mm) hermetically sealed | bottom | 5.26 in (133.7 mm) | 4.3 in (109.2 mm) | 1.42 in (36 mm) | 3.86 in (98 mm) | 0.50 in (12.7 mm) | 11/16 hex. (17 mm) | ¼ in nptm |
| “ | “ | “ | “ | “ | “ | “ | ⅜ bspp | |
| lower back | 2.66 in (67.5 mm) | 4.3 in (109.2 mm) | 1.42 in (36 mm) | 3.86 in (98 mm) | 1.33 in (33.8 mm) | 11/16 hex. (17 mm) | ¼ in nptm | |
| 4 in (100 mm) bayonet | bottom | 5.31 in (109.2 mm) | 4.3 in (109.2 mm) | 1.53 in (38.9 mm) | 3.90 in (99 mm) | 0.50 in (12.7 mm) | 11/16 hex. (17 mm) | ¼ in nptm |
| lower back | 2.66 in (67.5 mm) | 4.3 in (109.2 mm) | 1.53 in (38.9 mm) | 3.90 in (99 mm) | 1.33 in (33.8 mm) | 11/16 hex. (17 mm) | ¼ in nptm |
To Order, download the order tables in the links below, and use the code in corresponding column :
Order Code Table for Pressure Gauge LFB – Offered in 1/2 in nptm connection only
Order Code Table for Pressure Gauge LFB 2
