975, 975XL ¾”-2” 975, 975XL ¾”-2”. Modification Overview  Production of the original 975 began in 1990. This version had buna-n check discs and did not.

Slides:

Advertisements

Similar presentations

350, 350XL 1¼ - 2. Modification Overview Production of the 1¼ began in 2004 and is current. Production of the 1¼ began in 2004 and is current.

Advertisements

RP-500 ½- 1. Modification Overview Production of the RP500 began in 2007 and is current. Production of the RP500 began in 2007 and is current.

RP4A 2½ – 6. Modification Overview Production of the RP4A series began in Production of the RP4A series began in A Lead free version (4ALF)

RP4AN 21/2 – 6. Modification Overview Production of the RP4AN series began in Production of the RP4AN series began in The 4AN indicates an.

¾”-2”. Modification Overview  Production of the series began in 1989 and is current.  Early models of ¾”-2” series did not always.

RPDA 4A 2½” – 6”. Modification Overview  Production of the RPDA 4A series began in  The RPDA 4A can utilize either a Type I or Type II bypass.

860 (LF), 880 ½”- 2” 860 (LF), 880 ½”- 2”. Modification Overview  Production of the ½ - 2” 860 series began in 1997 and is current.  The 880 is an “N”

860 21/2”-10”. Modification Overview  Production of the 2½” – 10 sizes began in  Lead free version (LF860) was introduced in Parts do not.

350, 350A 2½”-12”. Modification Overview  Production of the 2½ - 10” sizes began in  Production of the “A” models began in This Indicates.

825, 825Y, 825YD 21/2”-10”. Modification Overview  825- ( ) Cast iron body- Threaded in seats- Internal check parts are epoxy coated iron. Old.

975DA 2½”-10”. Modification Overview  Production of the 975DA began in 1993 and was discontinued in  The 975DA uses a ¾” 975XL for the bypass.

765 ½”- 2”. Modification Overview  Production of the 765 began in 1975 and is current.

200B ½”-2”. Modification Overview  Production of the 200B (Watts 719) began in 2003 and is current.

825Y(YA) 3/4”-2”. Modification Overview  Production of the 825Y began in 1978 and is current.  The 825YR ( ) had replaceable check seats. **

800 (M2,M3,M4) ½”-2”. Modification Overview  The original model 800 was produced from  The 800M2 was produced from  The 800M3.

375AST 21/2”-10”. Modification Overview  The stainless steel (ST) series was introduced in  This version has a stainless steel body. ***(Parts.

375, 375XL ¾”-1”. Modification Overview  Production of the ¾”-1” 375 began in 2004 and is current.  The lead free version 375XL was introduced in 2010.

475, 475V 2½”-3”. Modification Overview  Production of the 2½ - 3” sizes began in  The lead free version (XL) was introduced in 2011.

806, 806YD 3”-10”. Modification Overview  806- ( ) Cast Iron body- Threaded in seats- Internal check parts are epoxy coated iron.  806YD- (1988-present)

LF866 2½”-10”. Product Overview  Production of the 2½” – 10” sizes began in  The LF866 utilizes a Type 2 bypass (Model LF619 single check).

4V-500 ½”-2”. Modification Overview  Production of the 4V-500 PVB began in  The 4V utilizes a float assembly that contains a relief valve that.

4D-200, 4D-700 2½”- 10”. Modification Overview  Production began in 2003 and was discontinued in  The 4D-700 (RPDA) uses a Type-II bypass (single.

½”-10”. Modification Overview  Production of the series began in 1989 and is current.

009 (M3) ½”-2” 009 (M3) ½”-2”. Modification Overview- 009  009 ¾-1” ( ) (1” ) ¾-1” ( ) (1” ) 1¼ -2” ( ) 1¼.

RPZ 2½”- 10” RPZ 2½”- 10”. Modification Overview  Production of the RPZ in sizes 2½ - 10” began in 1993 and is current.

5000CIV 21/2”-10” 5000CIV 21/2”-10”. Modification Overview  Production of the 5000CIV (Watts 909RPDA) began in 1998 and is current.  The 5000CIV utilizes.

375, 375XL 1¼” -2”. Modification Overview  Production of the 1¼” -2” 375 began in 2004 and is current.  The lead free version 375XL was introduced in.

RPZ, RPZE ½”-2”. Modification Overview  Production of the model RPZ began in  The lead free version ( RPZE ) was introduced in 2002 and is current.

450 4”-10”. Modification Overview  Production of the 4” - 10” sizes began in  The lead free version (XL) was introduced in 2011.

PVB ¾”- 2”. Modification Overview  Production for the ¾” – 1” PVB began in 1995 and is current.  The body of the ¾” – 1” PVB was modified in July of.

475, 475V, 475XL 4”-10”.

826YD 21/2”-10”.

009 2½”-3”.

RP4A (LF) ½”-2”.

PVB-4A ½”- 2”.

720A ½”-2”.

420, 420XL ¾”-1”.

007 2½”-3”.

RPDA 4AN 21/2” – 6”.

800 (M2,M3,M4) ½”-2”.

830, 831 4”- 6”.

805Y, 805YD 21/2”-10”.

DCV, DCVE ½”-2”.

806, 806YD 3”-10”.

450 2½”- 3”.

DC4A (LF) ½”-2”.

RPZ-II, RPZE-II ½” , ¾” , 1½”.

909 3/4”-2”.

DC-500 ½”- 1”.

350, 350XL ¾”- 1”.

850 (LF) ½”- 2”.

719 ½”-2”.

950, 950XL, 950XLT ¾”-2”.

909 21/2”-10”.

880V 21/2”-10”.

975 2½”-10”.

007 2½”-3”.

4000CIV 21/2”-10”.

375DA 2½”-10”.

919 ¾”-2”.

950DA 21/2”-10”.

450DA 4”-10”.

909 RPDA 21/2”-10”.

709 3/4”-2”.

Presentation transcript:

975, 975XL ¾”-2” 975, 975XL ¾”-2”

Modification Overview  Production of the original 975 began in This version had buna-n check discs and did not have replaceable check seats. Discontinued in  The 975A had bronze replaceable seats.  The 975XL (1993-Current) has plastic replaceable seats and silicone check discs.  A lead free version 975XL2 was introduced in 2010.

Check Cover Removal  Cover is threaded into body and o-ring sealed.  Cover is spring loaded.  Loosen cover with wrench, then remove by hand while holding tightly against spring pressure.

Check Valve Removal  Poppet style check valve.  The poppet and spring are free once the cover is removed.

Check Seat Removal  Check seats are threaded into body and o-ring sealed.  A “special tool” is needed for removal.

Check Disc Replacement  Remove screw and disc washer from poppet.  Reassemble in reverse order.

Check Valve Reassembly Notes  Inspect and clean the guide bore on the cover.  The stem must move freely in the guide bore.  Reassemble in reverse order.

RV Cover Removal  Cover is sealed by the diaphragm.  Cover has a slight spring load.  Hold cover firmly as the bolts are removed.

RV Stem Removal  Gently pull on the diaphragm to remove the RV stem.  The spring should fall out when the stem is removed.

RV Seat Removal  The seat is threaded into body and o-ring sealed.  A “special tool” is needed to remove the RV seat.

RV Stem Disassembly  Remove the retaining screw.  Pull the disc retainer and stem apart.

RV Rubber Replacement  The diaphragm and seat disc are free once the stem is disassembled.  Replace rubber in reverse order.  Lubricate plunger o- ring on stem.

RV Reassembly Notes  Reassemble the stem in reverse order.  Position spring in body.  Make sure diaphragm does not cover hole for sensing line.