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ANSI approved valves used to maintain a preset inlet pressure to prevent damage to the piping systems from excessive water / steam pressure. Intended for both domestic and industrial applications in oil lines, autoclaves and single radiators
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B| Style | Model | Height | Pipe Size | Price (inc. VAT) | |
|---|---|---|---|---|---|
| A | 11/2 25AUB-GG-Z3 | £686.40 | |||
| B | 11/4 25AUB-GG-Z3 | £475.65 |
A
B| Style | Model | Body Material | Disc Material | Inlet Type | Outlet Type | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|
| A | LF5BM3-HP-Z6 3/4 | £795.74 | |||||
| B | LF5M3-Z6 3/4 | £355.29 |
A
B| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | LF127W-208 3 | £11,668.22 | RFQ
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| B | LF127W-206 3 | £10,904.15 | RFQ
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| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | 223-Z3 1 1/4 | £2,335.16 | RFQ
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| A | 223-Z3 1 | £1,154.52 | RFQ
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| A | 223-LP 1/2 | £956.20 | RFQ
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| A | 223 2 | £2,001.14 | RFQ
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| A | 223 1 1/4 | £1,056.16 | RFQ
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| A | 223-B-LP 1/2 | £1,005.40 | RFQ
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| A | 223-Z3 3/4 | £842.46 | RFQ
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K| Style | Model | Adjustable Reduced Pressure Range | Body Material | Connection Type | Disc Material | Height | High Pressure Reduced Pressure Range | Inlet Size | Inlet Thread Type | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF223-S 1/2 | £439.08 | |||||||||
| B | LF223-B-LP 3/4 | £1,259.68 | |||||||||
| C | LF223-S-LP 3/4 | £1,563.42 | |||||||||
| C | LF223-S-B 3/4 | £1,312.87 | |||||||||
| C | LF223-S-Z3 3/4 | £1,375.89 | |||||||||
| B | LF223-B-Z3 3/4 | £1,053.83 | |||||||||
| C | LF223-S-HP 3/4 | £1,482.75 | |||||||||
| B | LF223-LP 3/4 | £1,147.61 | |||||||||
| D | LF223-LP 1/2 | £1,146.08 | |||||||||
| E | LF223-S-B-LP 1/2 | £1,654.16 | RFQ
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| C | LF223-S-B-LP 3/4 | £1,563.42 | |||||||||
| B | LF223 3/4 | £379.22 | |||||||||
| F | 11/4 LF 223 | £1,097.41 | |||||||||
| G | LF223-S 2 | £1,977.30 | |||||||||
| H | LF223-S 1 | £649.92 | |||||||||
| I | LF223-S 3/4 | £471.16 | |||||||||
| A | LF223-S 1 1/4 | £1,307.68 | |||||||||
| J | LF223 1 | £699.10 | |||||||||
| C | LF223-S-B-HP 3/4 | £1,953.91 | |||||||||
| C | LF223-S 3/4 | £486.11 | |||||||||
| B | LF223-HP 3/4 | £1,147.61 | |||||||||
| B | LF223-B 3/4 | £963.91 | |||||||||
| A | LF223-S 1 1/2 | £1,318.04 | |||||||||
| K | 1/2 LF 223 | £344.34 | |||||||||
| F | LF223 2 | £2,138.07 |
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K| Style | Model | Adjustable Reduced Pressure Range | Body Material | Connection Type | Disc Material | Height | High Pressure Reduced Pressure Range | Inlet Connection | Inlet Size | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 3/4 LF 25 AUB-Z3 | £261.56 | |||||||||
| B | LF25AUB-Z3 (W/PRESS) 1 | £362.27 | RFQ
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| C | 2 LF25AUB-GG-Z3 | £983.48 | |||||||||
| D | 3/4 LF25AUB-GG-Z3 | £224.94 | |||||||||
| A | LF 25AUB-Z3 1 | £392.10 | |||||||||
| A | 1/2 LF 25 AUB Z3 | £297.65 | |||||||||
| E | LF25AUB-S-G-HP-Z3 3/4 | £528.36 | |||||||||
| B | LF25AUB-Z3 (W/PRESS) 2 | £1,387.79 | RFQ
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| B | LF25AUB-Z3 (W/PRESS) 1/2 | £286.59 | RFQ
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| E | LF25AUB-LP-Z9 3/4 | £578.82 | |||||||||
| F | LF25AUB-Z3 3/4 | £224.10 | |||||||||
| F | LF25AUB-LP-Z3 3/4 | £427.36 | |||||||||
| E | LF25AUB-DU-QC-Z3 3/4 | £767.12 | |||||||||
| A | 11/4 LF 25AUBZ3 | £745.21 | |||||||||
| G | LF25AUB-Z3 1 | £325.31 | |||||||||
| F | LF25AUB-Z3 1 1/4 | £591.05 | |||||||||
| E | LF25AUB-DU-PEXXPEX 3/4 | £526.55 | |||||||||
| F | LF25AUB-Z3 1/2 | £271.25 | |||||||||
| E | LF25AUB-QC-Z3 3/4 | £434.30 | |||||||||
| H | LF25AUB-G-HP-Z3 3/4 | £528.36 | |||||||||
| A | 11/2 LF 25AUBZ3 | £994.23 | |||||||||
| A | 2 LF 25AUBZ3 | £1,512.20 | |||||||||
| I | 1/2 LF25AUB-GG-Z3 | £211.76 | |||||||||
| J | 1 LF25AUB-GG-Z3 | £268.50 | |||||||||
| K | 3/4 LF25AUB-HP-Z3 | £381.41 |
A| Style | Model | Mfr. Series | Price (inc. VAT) | |
|---|---|---|---|---|
| A | 6-M115FBA1A1B0H-0 | £9,430.09 | RFQ
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| A | 2-M115FCB1A1B0H-0 | £4,963.49 | RFQ
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| A | 4-M115FDA1A1B0H-0 | £5,188.98 | RFQ
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| A | 4-M115FCA1A1B0H-0 | £7,435.18 | RFQ
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| A | 3-M115FCB1A1B0H-0 | £6,167.37 | RFQ
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| A | 2.5-M115FAB1A1B0H-0 | £4,994.54 | RFQ
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| A | 2-M115FBB1A1B0H-0 | £4,676.68 | RFQ
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| A | 2-M115FDB1A1B0H-0 | £3,798.64 | RFQ
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| A | 2-M115FAB1A1B0H-0 | £4,177.96 | RFQ
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| A | 2.5-M115FBA1A1B0H-0 | £4,493.99 | RFQ
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| A | 6-M115FDA1A1B0H-0 | £7,659.58 | RFQ
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| A | 8-M115FCA1A1B0H-0 | £15,248.52 | RFQ
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| A | 8-M115FBA1A1B0H-0 | £14,762.59 | RFQ
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| A | 6-M115FBB1A1B0H-0 | £10,122.45 | RFQ
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| A | 6-M115FCA1A1B0H-0 | £9,899.58 | RFQ
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| A | 2-M115FBA1A1B0H-0 | £3,982.49 | RFQ
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| A | 3-M115FBA1A1B0H-0 | £4,826.48 | RFQ
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| A | 2-M115FAA1A1B0H-0 | £3,485.58 | RFQ
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| A | 2.5-M115FAA1A1B0H-0 | £4,300.35 | RFQ
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| A | 2.5-M115FDB1A1B0H-0 | £4,214.10 | RFQ
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| A | 4-M115FBA1A1B0H-0 | £6,388.42 | RFQ
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| A | 2.5-M115FBB1A1B0H-0 | £5,188.18 | RFQ
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| A | 2.5-M115FDA1A1B0H-0 | £3,650.24 | RFQ
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| A | 2.5-M115FCB1A1B0H-0 | £5,920.74 | RFQ
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| A | 3-M115FDA1A1B0H-0 | £3,920.32 | RFQ
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C| Style | Model | Inlet Size | Outlet Size | Price (inc. VAT) | |
|---|---|---|---|---|---|
| A | LFF127W-110 4 | £14,536.82 | RFQ
| ||
| B | LFF127W-210 4 | £14,536.82 | RFQ
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| C | LFF127W-206 | £14,779.04 | |||
| B | LFF127W-206 3 | £11,735.85 | RFQ
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| A | LFF127W-206 4 | £14,532.22 | RFQ
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| B | LFF127W-208 4 | £14,536.82 | RFQ
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E| Style | Model | Body Material | Disc Material | Inlet Connection | Inlet Size | Inlet Type | Outlet Connection | Outlet Size | Outlet Type | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LFN45BU 1 1/2 | £964.67 | RFQ
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| B | LFN45B-DU 1 1/4 | £702.56 | RFQ
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| C | LFN45B (W/PRESS) 1 1/2 | £969.69 | RFQ
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| D | LFN45B (W/PRESS) 2 | £1,316.89 | RFQ
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| D | LFN45B (W/PRESS) 1 1/4 | £626.94 | RFQ
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| E | LFN45B-DU-S 1 1/4 | £654.13 | RFQ
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Watts LFN55B-M1 Series water pressure-reducing valves are used in plumbing systems to regulate and control water pressure. These valves are employed in residential, commercial and industrial settings. They are offered in lead-free brass, brass and lead-free copper silicon alloy construction for safeguarding the water supply from harmful contaminants. These valves are equipped with a stainless steel strainer to prevent debris and sediment from entering the downstream plumbing system. They have thermoplastic seats for a tight & reliable seal to prevent water leakage. These valves are integrated with thermal expansion bypass to allow controlled release of excess pressure, resulting from thermal expansion in the water distribution system. They are available in female threaded and union joints inlet types.
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J| Style | Model | Body Material | Disc Material | Inlet Connection | Inlet Size | Inlet Type | Length | Material | Max. Working Pressure | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1/2 LF N55BUM1 | £149.12 | |||||||||
| A | 3/4 LF N55BUM1 | £166.31 | |||||||||
| B | LFN55BM1-DU-G 3/4 IN | £294.40 | |||||||||
| C | LFN55BM1-DUS-G 1 | £329.40 | |||||||||
| D | LFN55BM1-DU-G 1 | £329.40 | |||||||||
| E | LFN55BM1-U-G 1 | £294.80 | |||||||||
| C | LFN55BM1-G 1 | £281.09 | |||||||||
| B | LFN55BM1-DU-S 3/4 IN | £282.86 | |||||||||
| F | LFN55BM1-DU-PEX-G 1 | £329.40 | |||||||||
| G | LFN55BM1-DU-CPVC 1 | £307.66 | |||||||||
| C | LFN55BM1-US-G 1 | £294.80 | |||||||||
| B | LFN55BM1-DU 1 IN | £357.60 | |||||||||
| G | LFN55BM1-DU-CPVC 3/4 | £244.04 | |||||||||
| B | LFN55BM1 3/4 IN | £228.28 | |||||||||
| C | LFN55BM1-U-070 3/4 | £265.77 | |||||||||
| H | LFN55BM1-DU 1/2 IN | £259.04 | |||||||||
| I | LFN55BM1 1/2 IN | £225.24 | |||||||||
| B | LFN55BM1-DU 3/4 IN | £282.86 | |||||||||
| B | LFN55BM1 U 3/4 | £118.38 | |||||||||
| J | LFN55BM1-U 1 IN | £153.26 | |||||||||
| C | LFN55BM1-U-070 1 | £309.28 |
A
B| Style | Model | Mfr. Series | Price (inc. VAT) | |
|---|---|---|---|---|
| A | RK 25AUB 1 1/2 | £140.97 | ||
| B | LFRK N223M2 2 1/2 | £551.98 |
A| Style | Model | Inlet Size | Price (inc. VAT) | |
|---|---|---|---|---|
| A | LFX65BDU-CPVC-RIK 1 | £227.53 | RFQ
| |
| A | LFX65B-U-QC-RIK 1 | £197.53 | RFQ
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| A | LFX65BU-PEX-RIK 1 | £197.53 | RFQ
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| A | LFX65BDU-PEX-RIK 1 | £227.53 | RFQ
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| A | LFX65BU-CPVC-RIK 1 | £197.53 | RFQ
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| A | LFX65BDU-PEX-RIK 1/2 | £173.72 | RFQ
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| A | LFX65BU-PEX-RIK 3/4 | £169.10 | RFQ
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| A | LFX65BDU-PEX-RIK 3/4 | £187.57 | RFQ
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| A | LFX65BU-CPVC-RIK 3/4 | £169.10 | RFQ
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| A | LFX65BDU-CPVC-RIK 3/4 | £187.57 | RFQ
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K| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | X65BUS-G 1 1/2 | £1,432.77 | RFQ
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| B | X65B-G 3/4 | £336.67 | RFQ
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| C | X65BDU-PEX 1/2 | £365.13 | RFQ
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| A | X65BDU 2 | £1,941.62 | RFQ
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| D | X65BDU-S 2 | £1,941.62 | RFQ
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| A | X65BU-QC 1/2 | £325.91 | RFQ
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| A | X65BU-QC 1 | £416.61 | RFQ
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| A | X65BU-QC 3/4 | £355.89 | RFQ
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| E | X65B-G-HP 1/2 | £411.25 | RFQ
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| E | X65B-G 1 1/4 | £887.02 | RFQ
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| A | X65BUS 1 1/2 | £730.82 | RFQ
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| F | X65BU 1 1/4 | £513.42 | RFQ
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| A | X65BUS-G-HP 1 1/4 | £1,140.68 | RFQ
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| G | X65B 1 1/2 | £1,327.49 | RFQ
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| A | X65BDU-S-G 1 1/4 | £1,034.62 | RFQ
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| H | X65BUS-ROUGH-IN-KIT 1 1/2 | £544.53 | RFQ
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| F | X65BU 3/4 | £372.90 | RFQ
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| I | X65BU-070 1 | £419.69 | RFQ
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| J | X65B 3/4 | £322.82 | RFQ
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| B | X65B-G 1 1/2 | £1,392.05 | RFQ
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| F | X65BU 1 1/2 | £730.82 | RFQ
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| A | X65BDU-HP 1 1/2 | £1,932.40 | RFQ
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| F | X65BU-HP 3/4 | £445.81 | RFQ
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| A | X65BDU-G 2 | £2,041.54 | RFQ
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| K | X65BDU-QC 1/2 | £365.13 | RFQ
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C| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | LFRK 223N 1 1/2 | £334.62 | |
| B | LFRK 223N 2 | £546.80 | |
| C | LFRK 223N 3/4 | £93.11 |
| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | LFN250B-Z2-020 3/4 | £407.40 | |
| A | LFN250B 3/4 | £407.40 |
A
B| Style | Model | Height | Inlet Size | Length | Outlet Size | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|
| A | LFN223M2-B 2 1/2 | £2,801.74 | |||||
| B | LFN223M1-B 3 | £4,035.91 |
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D| Style | Model | Body Material | Disc Material | Inlet Connection | Inlet Size | Inlet Type | Max. Working Pressure | Min. Temp. | Outlet Connection | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LFN45B-EZM1-DU 3/4 | £250.59 | |||||||||
| B | LFN45BM1-DU-EZ-GG 3/4 | £369.74 | |||||||||
| A | LFN45BM1-DU-EZ-G 3/4 | £283.64 | |||||||||
| B | LFN45BDU-EZ-PEXXPEX-M1 3/4 | £267.51 | |||||||||
| C | LFN45BM1-DU-EZ-GG 1 | £434.30 | |||||||||
| C | LFN45BM1-DU-EZ-G 1 | £305.91 | |||||||||
| D | LFN45BDU-EZ-PEXXPEX-M1 1 | £270.55 | |||||||||
| C | LFN45B-EZM1-DU 1 | £270.55 |
AB
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D| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | U5B-G-HP-Z3 3/4 | £1,040.78 | RFQ
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| B | U5B-S-Z3 1 1/4 | £2,613.44 | RFQ
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| B | U5B-S-Z3 1/2 | £722.52 | RFQ
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| C | U5B-HP-Z3 1/2 | £858.57 | RFQ
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| D | U5B-GG-HP-Z3 3/4 | £1,120.70 | RFQ
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| C | U5B-Z3 11/4 | £1,147.83 | RFQ
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| A | U5B-G-Z3 1/2 | £721.76 | RFQ
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| B | U5B-S-Z3 2 | £4,175.33 | RFQ
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| A | U5B-G-Z3 3/4 | £840.90 | RFQ
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| D | U5B-GG-Z3 1 | £1,405.87 | RFQ
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| D | U5B-GG-Z3 1 1/4 | £2,468.90 | RFQ
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| Style | Model | Price (inc. VAT) | |
|---|---|---|---|
| A | N55BM1 1 IN | £211.37 | RFQ
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| A | N55BM1-DU-CPVC 3/4 IN | £251.35 | RFQ
|
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H| Style | Model | Body Material | Inlet Size | Item | Max. Working Pressure | Min. Temp. | Outlet Size | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|
| A | LFX65B 1 | £471.17 | RFQ
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| B | LFX65B-G 1 | £494.24 | |||||||
| C | LFX65B 2 | £2,147.63 | RFQ
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| D | LFX65B-CART-HP 1 1/2-2 | £1,352.85 | |||||||
| E | LFX65B-CART-STD 1/2-3/4 | £229.08 | |||||||
| F | LFX65B-DU-QC-RIK 3/4 | £187.57 | RFQ
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| F | LFX65B-DU-QC-RIK 1 | £227.53 | RFQ
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| G | LFX65B-CART-HP 1/2-3/4 | £285.15 | RFQ
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| G | LFX65B-CARTASSY-HP 1 1/4 | £747.92 | RFQ
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| H | LFX65B CARTASSY-STD 1 | £270.55 | RFQ
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| F | LFX65B-DU-QC-RIK 1/2 | £173.72 | RFQ
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| H | LFX65B-CART-STD 1 1/4 | £598.78 | RFQ
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R| Style | Model | Body Material | Connection Type | Disc Material | Height | Inlet Connection | Inlet Size | Inlet Type | Item | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LFN45BM1-PRESS 1/2 | £246.31 | |||||||||
| B | LFN45BM1-DU-CPVC | £108.71 | |||||||||
| A | LFN45BM1-PRESS 1 | £327.14 | |||||||||
| C | LFN45BM1-DU | £168.60 | |||||||||
| A | LFN45BM1-PRESS 3/4 | £276.81 | |||||||||
| B | LFN45BM1-DU-CPVC | £108.05 | |||||||||
| C | LFN45BM1-DU | £297.84 | |||||||||
| D | LFN45BM1-DU-EZ 3/4" | £244.63 | |||||||||
| E | LFN45BM1-DU 1/2 | £243.64 | |||||||||
| F | LFN45BM1-U-S | £158.34 | |||||||||
| G | LFN45BM1 (W/PRESS) 1/2 | £215.18 | RFQ
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| H | LFN45BDU-SXPEX-M1 3/4 | £96.07 | |||||||||
| G | LFN45BM1 (W/PRESS) 1 | £158.54 | RFQ
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| I | LFN45BM1-U-QC 1 | £349.74 | |||||||||
| H | LFN45BM1-U-QC 3/4 | £95.32 | |||||||||
| J | LFN45BDU-QC-M1 1 | £342.82 | |||||||||
| K | LFN45BM1 (W/PRESS) 3/4 | £141.77 | RFQ
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| L | LFN45BDU-QC-M1 3/4 | £262.11 | |||||||||
| M | LFN45BDU-SXPEX-M1 1 | £123.36 | |||||||||
| N | LFN45BM1 3/4 | £197.53 | |||||||||
| O | LFN45BDU-PEXXPEX-M1 1 | £294.40 | |||||||||
| P | LFN45BM1-U-S 3/4 | £96.49 | |||||||||
| Q | LFN45BM1-DU 3/4 | £225.24 | |||||||||
| R | LFN45BM1-U 1/2 | £203.68 | |||||||||
| R | LFN45BM1-U 1 | £114.22 |
Yes, water hammer is a phenomenon that generates noise by shocks of high flow water in pipes when the fixture is closed suddenly. The bounce-back caused is called a water hammer. This shortcoming can be reduced by using the pressure reducing valves in piping systems.
Yes, for reducing high water pressures, users can install multiple reducing valves in series or parallel in the line. This cascading effect lowers the water pressure to safer values and protects fixtures.
If the water flow through pipes causes a banging noise, it signifies that the pressure is excessive and needs to be regulated.
Yes, various end fitting configurations facilitate the installation and servicing of these pressure reducing valves. Union fittings of CPVC, solder, female threaded, Quick-Connect, PEX and press end connections and water meter threads can be used for installation.
These two components are most critical in the path of high-pressure water. They handle and regulate excessive water velocity and volatile water conditions in pipings.
Watts water pressure regulator valves protect connected piping and fixtures against blowouts and leakages that are caused by high water pressure. They also maintain the water pressure by regulating the fluctuating water supply at the intake side.
